You just have to write this:

 private PowerManager.WakeLock wl;

    protected void onCreate(Bundle savedInstanceState) {
               super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
            wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "DoNjfdhotDimScreen");
    }//End of onCreate

            @Override
        protected void onPause() {
            super.onPause();
            wl.release();
        }//End of onPause

        @Override
        protected void onResume() {
            super.onResume();
            wl.acquire();
        }//End of onResume

and then add permission in the manifest file

 <uses-permission android:name="android.permission.WAKE_LOCK" />

Now your activity will always be awake. You can do other things like w1.release() as per your requirement.

Android does not provide any sort of SOAP library. You can either write your own, or use something like kSOAP 2. As you note, others have been able to compile and use kSOAP2 in their own projects, but I haven't had to.

Google has shown, to date, little interest in adding a SOAP library to Android. My suspicion for this is that they'd rather support the current trends in Web Services toward REST-based services, and using JSON as a data encapsulation format. Or, using XMPP for messaging. But that is just conjecture.

XML-based web services are a slightly non-trivial task on Android at this time. Not knowing NetBeans, I can't speak to the tools available there, but I agree that a better library should be available. It is possible that the XmlPullParser will save you from using SAX, but I don't know much about that.

To alter the color of the app bar only, you just have to change the colorPrimary value inside the colors.xml file and the colorPrimaryDark if you want to change the battery bar color as well:

<resources>
  <color name="colorPrimary">#B90C0C</color>
  <color name="colorPrimaryDark">#B90C0C</color>
  <color name="colorAccent">#D81B60</color>
</resources>

You can used two way.

First Way:

Set android:inputType="textCapSentences" on your EditText.

Second Way:

When user enter the number you have to used text watcher and change small to capital letter.

edittext.addTextChangedListener(new TextWatcher() {

    @Override
    public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {            

    }
        @Override
    public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {             
    }
    @Override
    public void afterTextChanged(Editable et) {
          String s=et.toString();
      if(!s.equals(s.toUpperCase()))
      {
         s=s.toUpperCase();
         edittext.setText(s);
         edittext.setSelection(edittext.length()); //fix reverse texting
      }
    }
});  

JSONArray may be what you want.

String message;
JSONObject json = new JSONObject();
json.put("name", "student");

JSONArray array = new JSONArray();
JSONObject item = new JSONObject();
item.put("information", "test");
item.put("id", 3);
item.put("name", "course1");
array.put(item);

json.put("course", array);

message = json.toString();

// message
// {"course":[{"id":3,"information":"test","name":"course1"}],"name":"student"}

Since API 16 you can supply an activity options bundle when calling Context.startActivity(Intent, Bundle) or related methods. It is created via the ActivityOptions builder:

Intent myIntent = new Intent(context, MyActivity.class);
ActivityOptions options = 
   ActivityOptions.makeCustomAnimation(context, R.anim.fade_in, R.anim.fade_out);
context.startActivity(myIntent, options.toBundle());

Don't forget to check out the other methods of the ActivityOptions builder and the ActivityOptionsCompat if you are using the Support Library.

API 5+:

For apps targeting API level 5+ there is the Activities overridePendingTransition method. It takes two resource IDs for the incoming and outgoing animations. An id of 0 will disable the animations. Call this immediately after the startActivity call.

i.e.:

startActivity(new Intent(this, MyActivity.class));
overridePendingTransition(R.anim.fade_in, R.anim.fade_out);

API 3+:

You can prevent the default animation (Slide in from the right) with the Intent.FLAG_ACTIVITY_NO_ANIMATION flag in your intent.

i.e.:

Intent myIntent = new Intent(context, MyActivity.class);
myIntent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
context.startActivity(myIntent);

then in your Activity you simply have to specify your own animation.

This also works for the 1.5 API (Level 3).

Complete working example in Kotlin, I have replaced my API keys with 1111...

        val apiService = API.getInstance().retrofit.create(MyApiEndpointInterface::class.java)
        val params = HashMap<String, String>()
        params["q"] =  "munich,de"
        params["APPID"] = "11111111111111111"

        val call = apiService.getWeather(params)

        call.enqueue(object : Callback<WeatherResponse> {
            override fun onFailure(call: Call<WeatherResponse>?, t: Throwable?) {
                Log.e("Error:::","Error "+t!!.message)
            }

            override fun onResponse(call: Call<WeatherResponse>?, response: Response<WeatherResponse>?) {
                if (response != null && response.isSuccessful && response.body() != null) {
                    Log.e("SUCCESS:::","Response "+ response.body()!!.main.temp)

                    temperature.setText(""+ response.body()!!.main.temp)

                }
            }

        })

This is my solution. you can download demo on my github. https://github.com/krossford/KrossLib/tree/master/android-project

This screenshot was a demo that maxLines = 4, I think it works well.

package com.krosshuang.krosslib.lib.view;

import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.widget.TextView;

import java.util.ArrayList;

/*
?????
How to use it?

> 1.?xml??java???????
> 1.use it like other views on xml and java code.

> 2.[??] setMaxLines ?????xml?? "android:maxLines" ??
> 2.[must] call the setMaxLines method to instead of the xml property android:maxLines.

> 3.[??] ???? setMultilineEllipsizeMode() ??,???????
> 3.[option] you can invoke setMultilineEllipsizeMode method, but I have not implement it.

*/

/**
* android???TextView???ellipsize?????
* Created by krosshuang on 2015/12/17.
*/
public class EllipsizeEndTextView extends TextView {

    private static final String LOG_TAG = "EllipsizeTextView";

    /** ???????? */
    //TODO ??????
    public static final int MODE_EACH_LINE = 1;

    /** ????????? */
    public static final int MODE_LAST_LINE = 2;

    private static final String ELLIPSIZE = "...";


    private ArrayList<String> mTextLines = new ArrayList<String>();

    private CharSequence mSrcText = null;
    private int mMultilineEllipsizeMode = MODE_LAST_LINE;
    private int mMaxLines = 1;
    private boolean mNeedIgnoreTextChangeAndSelfInvoke = false;


    public EllipsizeEndTextView(Context context) {
        super(context);
    }

    public EllipsizeEndTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public EllipsizeEndTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
        if (!mNeedIgnoreTextChangeAndSelfInvoke) {
            super.onTextChanged(text, start, lengthBefore, lengthAfter);
            mSrcText = text;
        }
    }

    @Override
    public void setMaxLines(int maxlines) {
        super.setMaxLines(maxlines);
        mMaxLines = maxlines;
    }

    public int getSupportedMaxLines() {
        return mMaxLines;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        setVisibleText();
        super.onDraw(canvas);
        mNeedIgnoreTextChangeAndSelfInvoke = false;
    }

    private void setVisibleText() {

        if (mSrcText == null) {
            return;
        }

        //??????width get available width
        final int aw = getWidth() - getPaddingLeft() - getPaddingRight();

        String srcText = mSrcText.toString();

        //???????????????????????????
        String[] lines = srcText.split("\n");
        //Log.i(LOG_TAG, "?????: " + lines.length + " ? " + Arrays.toString(lines));

        int maxLines = getSupportedMaxLines();

        //????????????list
        mTextLines.clear();
        for (int i = 0; i < lines.length; i++) {
            mTextLines.add(lines[i]);
        }

        switch (mMultilineEllipsizeMode) {

            case MODE_EACH_LINE:
                break;

            default:
            case MODE_LAST_LINE:
                //????
                String eachLine = null;
                for (int i = 0; i < mTextLines.size() && i < maxLines - 1; i++) {

                    eachLine = mTextLines.get(i);

                    if (getPaint().measureText(eachLine, 0, eachLine.length()) > aw) {

                        //?????????
                        boolean isOut = true;
                        int end = eachLine.length() - 1;
                        while (isOut) {
                            if (getPaint().measureText(eachLine.substring(0, end), 0, end) > aw) {
                                end--;
                            } else {
                                isOut = false;
                            }
                        }

                        mTextLines.set(i, eachLine.substring(0, end));  //??????????
                        mTextLines.add(i + 1, eachLine.substring(end, eachLine.length()));  //????????,?????,????????????????,???????

                    }
                }

                //??????,??????????????
                break;
        }

        //?? maxLines ? ?????,?????????
        int resultSize = Math.min(maxLines, mTextLines.size());

        //????????
        String lastLine = mTextLines.get(resultSize - 1);

        //????????????...
        //1.??????????,???????,?????????...
        //2.????????,?????????,????????????,????...
        if (getPaint().measureText(lastLine, 0, lastLine.length()) > aw || resultSize < mTextLines.size()) {

            boolean isOut = true;
            int end = lastLine.length();
            while (isOut) {
                if (getPaint().measureText(lastLine.substring(0, end) + ELLIPSIZE, 0, end + 3) > aw) {
                    end--;
                } else {
                    isOut = false;
                }
            }

            mTextLines.set(resultSize - 1, lastLine.substring(0, end) + ELLIPSIZE);
        }

        //??????
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i <  resultSize ; i++) {
            sb.append(mTextLines.get(i));
            if (i != resultSize - 1) {
                sb.append('\n');
            }
        }

        //????,set
        if (sb.toString().equals(getText())) {
            return;
        } else {
            mNeedIgnoreTextChangeAndSelfInvoke = true;
            setText(sb.toString());
        }
    }

    /**
     * ??ellipsize mode,?????
     * @deprecated
     * */
    public void setMultilineEllipsizeMode(int mode) {
        mMultilineEllipsizeMode = mode;
    }
}

Go to build path in eclipse, then click order and export, then check the library/jar, and then click the up button to move it to the top of the list to compile it first.

In case someone stumbles in on this like I did, you can filter on multiple tags by adding a comma in between, like so:

adb logcat -s "browser","webkit"

if you are using Android device monitor and android emulator : I have accessed following way: Data/Media/0/

Use this

DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet("http://www.someplace.com");
ResponseHandler<String> resHandler = new BasicResponseHandler();
String page = httpClient.execute(httpGet, resHandler);

This can be used to grab the whole webpage as a string of html, i.e., "<html>...</html>"

Note You need to declare the following 'uses-permission' in the android manifest xml file... answer by @Squonk here

And also check this answer

Answers assembled! I wanted to just combine all the answers into one comprehensive one.

1. Check if <uses-permission android:name="android.permission.INTERNET" /> is present in manifest.xml. Make sure that it is nested under <manifest> and not <application>. Thanks to sajid45 and Liyanis Velazquez

2. Ensure that you are using <uses-permission android:name="android.permission.INTERNET"/> instead of the deprecated <uses-permission android:name="android.permission.internet"/>. Much thanks to alan_shi and creos.

3. If minimum version is below KK, check that you have

if (18 < Build.VERSION.SDK_INT ){
    //18 = JellyBean MR2, KITKAT=19
    mWeb.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
}

or

if (Build.VERSION.SDK_INT >= 19) {
        mWebView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
}

because proper webview is only added in KK (SDK 19). Thanks to Devavrata, Mike ChanSeong Kim and Liyanis Velazquez

4. Ensure that you don't have webView.getSettings().setBlockNetworkLoads (false);. Thanks to TechNikh for pointing this out.

5. If all else fails, make sure that your Android Studio, Android SDK and the emulator image (if you are using one) is updated. And if you are still meeting the problem, just open a new question and make a comment below to your URL.

In your Manifest you need to reference the name of the style that has the text color item inside it. Right now you are just referencing an empty style. So in your theme.xml do only this style:

<style name="Theme" parent="@android:style/TextAppearance">
    <item name="android:textColor">#ffffffff</item>
</style>

And keep you reference to in the Manifest the same (android:theme="@style/Theme")

EDIT:

theme.xml:

<style name="MyTheme" parent="@android:style/TextAppearance">
    <item name="android:textColor">#ffffffff</item>
    <item name="android:textSize">12dp</item>
</style>

Manifest:

<application
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    android:theme="@style/MyTheme">

Notice I combine the text color and size into the same style. Also, I changed the name of the theme to MyTheme and am now referencing that in the Manifest. And I changed to @android:style/TextAppearance for the parent value.

Yup, As @luizfelippe mentioned Session class has been removed since SDK 4.0. We need to use LoginManager.

I just looked into LoginButton class for logout. They are making this kind of check. They logs out only if accessToken is not null. So, I think its better to have this in our code too..

AccessToken accessToken = AccessToken.getCurrentAccessToken();
if(accessToken != null){
    LoginManager.getInstance().logOut();
}

Here a more complete snippet that crops out the center of an [bitmap] of arbitrary dimensions and scales the result to your desired [IMAGE_SIZE]. So you will always get a [croppedBitmap] scaled square of the image center with a fixed size. ideal for thumbnailing and such.

Its a more complete combination of the other solutions.

final int IMAGE_SIZE = 255;
boolean landscape = bitmap.getWidth() > bitmap.getHeight();

float scale_factor;
if (landscape) scale_factor = (float)IMAGE_SIZE / bitmap.getHeight();
else scale_factor = (float)IMAGE_SIZE / bitmap.getWidth();
Matrix matrix = new Matrix();
matrix.postScale(scale_factor, scale_factor);

Bitmap croppedBitmap;
if (landscape){
    int start = (tempBitmap.getWidth() - tempBitmap.getHeight()) / 2;
    croppedBitmap = Bitmap.createBitmap(tempBitmap, start, 0, tempBitmap.getHeight(), tempBitmap.getHeight(), matrix, true);
} else {
    int start = (tempBitmap.getHeight() - tempBitmap.getWidth()) / 2;
    croppedBitmap = Bitmap.createBitmap(tempBitmap, 0, start, tempBitmap.getWidth(), tempBitmap.getWidth(), matrix, true);
}

You have to create a crt bundle then it will be fine. You will be receiving three crt files. Use them all! If you only used the domain.crt then there will be warning on android but not on PC.

I am on nginx. I opened domain_name.crt and then opened positivesslca2.crt, select all and copy to the end of domain_name.crt. Then open AddTrustExternalCARoot.crt, copy to the end of domain_name.crt again. Then install the domain_name.crt

works good.

http://developer.android.com/reference/android/content/Context.html#BIND_ABOVE_CLIENT

public static final int BIND_ABOVE_CLIENT -- Added in API level 14

Flag for bindService(Intent, ServiceConnection, int): indicates that the client application binding to this service considers the service to be more important than the app itself. When set, the platform will try to have the out of memory killer kill the app before it kills the service it is bound to, though this is not guaranteed to be the case.

Other flags of the same group are: BIND_ADJUST_WITH_ACTIVITY, BIND_AUTO_CREATE, BIND_IMPORTANT, BIND_NOT_FOREGROUND, BIND_WAIVE_PRIORITY.

Note that the meaning of BIND_AUTO_CREATE has changed in ICS, and old applications that don't specify BIND_AUTO_CREATE will automatically have the flags BIND_WAIVE_PRIORITY and BIND_ADJUST_WITH_ACTIVITY set for them.

The official answer from Facebook (http://developers.facebook.com/bugs/282710765082535):

Mikhail,

The facebook android sdk no longer supports android 1.5 and 1.6. Please upgrade to the next api version.

Good luck with your implementation.

Don't agree with post above. I have a Hero with only English available and I want Spanish.

I installed MoreLocale 2, and it has lots of different languages (Dutch among them). I choose Spanish, Sense UI restarted and EVERYTHING in my phone changed to Spanish: menus, settings, etc. The keyboard predictive text defaulted to Spanish and started suggesting words in Spanish. This means, somewhere within the OS there is a Spanish dictionary hidden and MoreLocale made it available.

The problem is that English is still the only option available in keyboard input language so I can switch to English but can't switch back to Spanish unless I restart Sense UI, which takes a couple of minutes so not a very practical solution.

Still looking for an easier way to do it so please help.

You can make another class for doing this kind of activities.

public class Go {

   public void Setting(Context context)
    {
        Intent intent = new Intent(android.provider.Settings.ACTION_SETTINGS);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(intent);
    }
}

Finally found a solution for this by adding this line to gradle.properties.

org.gradle.jvmargs=-Xmx4608m

It happens because Build Tools revision 24.4.1 doesn't exist.

The latest version is 23.0.2.
These tools is included in the SDK package and installed in the <sdk>/build-tools/ directory.

Don't confuse the Android SDK Tools with SDK Build Tools.

Change in your build.gradle

android {
   buildToolsVersion "23.0.2"
   // ...

}

The simplest way is using Apk OneClick Decompiler. That is a tool package to decompile & disassemble APKs (android packages).

FEATURES

• All features are integrated into the right-click menu of Windows.
• Decompile APK classes to Java source codes.
• Disassemble APK to smali code and decode its resources.
• Install APK to phone by right-click.
• Recompile APK after editing smali code and/or resources. During recompile:
• Optimize png images
• Sign apks
• Zipalign

REQUIREMENTS

Java Runtime Environment (JRE) must be installed.

You can download it from this link Apk OneClick Decompiler

Enjoy that.

You have to use the android:hint attribute

<EditText
android:id="@+id/message"
android:hint="<<Your placeholder>>"
/>

In Android Studio, you can switch from XML -> Design View and click on the Component in the layout, the EditText field in this case. This will show all the applicable attributes for that GUI component. This will be handy when you don't know about all the attributes that are there.

You would be surprised to see that EditText has more than 140 attributes for customization.

For sending data to a service you can use:

Intent intent = new Intent(getApplicationContext(), YourService.class);
intent.putExtra("SomeData","ItValue");
startService(intent);

And after in service in onStartCommand() get data from intent.

For sending data or event from a service to an application (for one or more activities):

private void sendBroadcastMessage(String intentFilterName, int arg1, String extraKey) {
    Intent intent = new Intent(intentFilterName);
    if (arg1 != -1 && extraKey != null) {
        intent.putExtra(extraKey, arg1);
    }
    sendBroadcast(intent);
}

This method is calling from your service. You can simply send data for your Activity.

private void someTaskInYourService(){

    //For example you downloading from server 1000 files
    for(int i = 0; i < 1000; i++) {
        Thread.sleep(5000) // 5 seconds. Catch in try-catch block
        sendBroadCastMessage(Events.UPDATE_DOWNLOADING_PROGRESSBAR, i,0,"up_download_progress");
    }

For receiving an event with data, create and register method registerBroadcastReceivers() in your activity:

private void registerBroadcastReceivers(){
    broadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            int arg1 = intent.getIntExtra("up_download_progress",0);
            progressBar.setProgress(arg1);
        }
    };
    IntentFilter progressfilter = new IntentFilter(Events.UPDATE_DOWNLOADING_PROGRESS);
    registerReceiver(broadcastReceiver,progressfilter);

For sending more data, you can modify method sendBroadcastMessage();. Remember: you must register broadcasts in onResume() & unregister in onStop() methods!

UPDATE

Please don't use my type of communication between Activity & Service. This is the wrong way. For a better experience please use special libs, such us:

1) EventBus from greenrobot

2) Otto from Square Inc

P.S. I'm only using EventBus from greenrobot in my projects,

To add bouncy castle to Android project: https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk16/1.45

Add this line in your Main Activity:

static {
    Security.addProvider(new BouncyCastleProvider());
}

public class AESHelper {

    private static final String TAG = "AESHelper";

    public static byte[] encrypt(byte[] data, String initVector, String key) {
        try {
            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
            Cipher c = Cipher.getInstance("AES/CBC/PKCS5PADDING");
            SecretKeySpec k = new SecretKeySpec(Base64.decode(key, Base64.DEFAULT), "AES");
            c.init(Cipher.ENCRYPT_MODE, k, iv);
            return c.doFinal(data);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    public static byte[] decrypt(byte[] data, String initVector, String key) {
        try {
            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
            Cipher c = Cipher.getInstance("AES/CBC/PKCS5PADDING");
            SecretKeySpec k = new SecretKeySpec(Base64.decode(key, Base64.DEFAULT), "AES");
            c.init(Cipher.DECRYPT_MODE, k, iv);
            return c.doFinal(data);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    public static String keyGenerator() throws NoSuchAlgorithmException {
        KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
        keyGenerator.init(192);

        return Base64.encodeToString(keyGenerator.generateKey().getEncoded(),
                Base64.DEFAULT);
    }
}

Place any view on your desire X & Y point

layout file

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.test.MainActivity" >

    <AbsoluteLayout
        android:id="@+id/absolute"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <RelativeLayout
            android:id="@+id/rlParent"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >

            <ImageView
                android:id="@+id/img"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="@drawable/btn_blue_matte" />
        </RelativeLayout>
    </AbsoluteLayout>

</RelativeLayout>

Java Class

public class MainActivity extends Activity {

    private RelativeLayout rlParent;
    private int width = 100, height = 150, x = 20, y= 50; 

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        AbsoluteLayout.LayoutParams param = new AbsoluteLayout.LayoutParams(width, height, x, y);
        rlParent = (RelativeLayout)findViewById(R.id.rlParent);
        rlParent.setLayoutParams(param);
    }
}

Done

To add to this - it seems important to define the width & height of the drawable as per this post:

• Drawable shape not showing when used in combination with android:drawableBottom attribute.

(his code works)

The only way to do it is by checking the value of the isCancelled() method and stopping playback when it returns true.

I was also getting the same issue I tried multiple IPs like my public IP and localhost default IP 127.0.0.1 in windows and default gateway but same response. but I forget to check by

C:> ipconfig

ipconfig cleanly say what is my actual IP address of that adapter with which I have connected like I was connected with Wifi adapter my IP address will show me as:

Wireless LAN adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::69fa:9475:431e:fad7%11
   IPv4 Address. . . . . . . . . . . : 192.168.15.92

I hope this will help you.

onResume() is called:

1. after onStart()
2. when the Activity comes to the foreground.

From http://developer.android.com/reference/android/app/Activity.html#ActivityLifecycle:

Install Fiddler on your PC and use it as a proxy on your Android device.

Source: http://www.cantoni.org/2013/11/06/capture-android-web-traffic-fiddler

This answer is a workaround for those who use "Theme.AppCompat.Dialog" or any other "Theme.AppCompat.Dialog" descendants like "Theme.AppCompat.Light.Dialog", "Theme.AppCompat.DayNight.Dialog", etc. I myself has to use AppCompat dialog because i use AppCompatActivity as extends for all my activities. There will be a problem that make the dialog has padding on every sides(top, right, bottom and left) if we use the accepted answer.

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.your_layout);

    getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
}

On your Activity's style, add these code

<style name="DialogActivityTheme" parent="Theme.AppCompat.Dialog">
    <item name="windowNoTitle">true</item>
    <item name="android:windowBackground">@null</item>
</style>

As you may notice, the problem that generate padding to our dialog is "android:windowBackground", so here i make the window background to null.

You should use LayoutParams to set your button margins:

LayoutParams params = new LayoutParams(
        LayoutParams.WRAP_CONTENT,      
        LayoutParams.WRAP_CONTENT
);
params.setMargins(left, top, right, bottom);
yourbutton.setLayoutParams(params);

Depending on what layout you're using you should use RelativeLayout.LayoutParams or LinearLayout.LayoutParams.

And to convert your dp measure to pixel, try this:

Resources r = mContext.getResources();
int px = (int) TypedValue.applyDimension(
        TypedValue.COMPLEX_UNIT_DIP,
        yourdpmeasure, 
        r.getDisplayMetrics()
);

You can try this website http://www.decompileandroid.com Just upload the .apk file and rest of it will be done by this site.

Due to goto10's observation, I put together the following code to protected against loosing other filters with setting the max length:

/**
 * This sets the maximum length in characters of an EditText view. Since the
 * max length must be done with a filter, this method gets the current
 * filters. If there is already a length filter in the view, it will replace
 * it, otherwise, it will add the max length filter preserving the other
 * 
 * @param view
 * @param length
 */
public static void setMaxLength(EditText view, int length) {
    InputFilter curFilters[];
    InputFilter.LengthFilter lengthFilter;
    int idx;

    lengthFilter = new InputFilter.LengthFilter(length);

    curFilters = view.getFilters();
    if (curFilters != null) {
        for (idx = 0; idx < curFilters.length; idx++) {
            if (curFilters[idx] instanceof InputFilter.LengthFilter) {
                curFilters[idx] = lengthFilter;
                return;
            }
        }

        // since the length filter was not part of the list, but
        // there are filters, then add the length filter
        InputFilter newFilters[] = new InputFilter[curFilters.length + 1];
        System.arraycopy(curFilters, 0, newFilters, 0, curFilters.length);
        newFilters[curFilters.length] = lengthFilter;
        view.setFilters(newFilters);
    } else {
        view.setFilters(new InputFilter[] { lengthFilter });
    }
}

Here is my example of launching bar/QR code scanner from my app if someone finds it useful

Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.setPackage("com.google.zxing.client.android");

try 
{
    startActivityForResult(intent, SCAN_REQUEST_CODE);
} 
catch (ActivityNotFoundException e) 
{
    //implement prompt dialog asking user to download the package
    AlertDialog.Builder downloadDialog = new AlertDialog.Builder(this);
    downloadDialog.setTitle(stringTitle);
    downloadDialog.setMessage(stringMessage);
    downloadDialog.setPositiveButton("yes",
            new DialogInterface.OnClickListener() 
            {
                public void onClick(DialogInterface dialogInterface, int i) 
                {
                    Uri uri = Uri.parse("market://search?q=pname:com.google.zxing.client.android");
                    Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                    try
                    {
                        myActivity.this.startActivity(intent);
                    }
                    catch (ActivityNotFoundException e)
                    {
                        Dialogs.this.showAlert("ERROR", "Google Play Market not found!");
                    }
                }
            });
    downloadDialog.setNegativeButton("no",
            new DialogInterface.OnClickListener() 
            {
                public void onClick(DialogInterface dialog, int i) 
                {
                    dialog.dismiss();
                }
            });
    downloadDialog.show();
}

And selector is the answer here as well.

Search for bright_text_dark_focused.xml in the sources, add to your project under res/color directory and then refer from the TextView as

android:textColor="@color/bright_text_dark_focused"

new Handler().postDelayed(new Runnable() {
    public void run() {
        // do something...              
    }
}, 100);

Please follow those steps.

Bundle your js:

if you have index.android.js in project root then run

react-native bundle --dev false --platform android --entry-file index.android.js --bundle-output ./android/app/build/intermediates/assets/debug/index.android.bundle --assets-dest ./android/app/build/intermediates/res/merged/debug

if you have index.js in project root then run

react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res

Create debug apk:

cd android/
./gradlew assembleDebug

Then You can find your apk here:

cd app/build/outputs/apk/

An example of usage an Api App Key in an Android application (Java and XML)

gradle.properties

AppKey="XXXX-XXXX"

build.gradle

buildTypes {
//...
    buildTypes.each {
        it.buildConfigField 'String', 'APP_KEY_1', AppKey
        it.resValue 'string', 'APP_KEY_2', AppKey
    }
}

Usage in java code

Log.d("UserActivity", "onCreate, APP_KEY: " + getString(R.string.APP_KEY_2));

BuildConfig.APP_KEY_1

Usage in xml code

<data android:scheme="@string/APP_KEY_2" />

• Link to an example of Api App Key usage in an Android application
• Using String Constants Generated by Gradle Build Configurations

final ListView lv = (ListView) findViewById(R.id.ListView01);

lv.setOnItemClickListener(new OnItemClickListener() {
      public void onItemClick(AdapterView<?> myAdapter, View myView, int myItemInt, long mylng) {
        String selectedFromList =(String) (lv.getItemAtPosition(myItemInt));

      }                 
});

I hope this fixes your problem.

It's not that above answers are incorrect, but I find this code extremely easy to understand and therefore I am sharing it here with everyone. And there is also the check for WRITE_CONTACTS permission.

Here is the complete code for how to add phone number, email, website etc to an existing contact.

public static void addNumberToContact(Context context, Long contactRawId, String number) throws RemoteException, OperationApplicationException {
    addInfoToAddressBookContact(
            context,
            contactRawId,
            ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE,
            ContactsContract.CommonDataKinds.Phone.NUMBER,
            ContactsContract.CommonDataKinds.Phone.TYPE,
            ContactsContract.CommonDataKinds.Phone.TYPE_OTHER,
            number
    );
}

public static void addEmailToContact(Context context, Long contactRawId, String email) throws RemoteException, OperationApplicationException {
    addInfoToAddressBookContact(
            context,
            contactRawId,
            ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE,
            ContactsContract.CommonDataKinds.Email.ADDRESS,
            ContactsContract.CommonDataKinds.Email.TYPE,
            ContactsContract.CommonDataKinds.Email.TYPE_OTHER,
            email
    );
}

public static void addURLToContact(Context context, Long contactRawId, String url) throws RemoteException, OperationApplicationException {
    addInfoToAddressBookContact(
            context,
            contactRawId,
            ContactsContract.CommonDataKinds.Website.CONTENT_ITEM_TYPE,
            ContactsContract.CommonDataKinds.Website.URL,
            ContactsContract.CommonDataKinds.Website.TYPE,
            ContactsContract.CommonDataKinds.Website.TYPE_OTHER,
            url
    );
}

private static void addInfoToAddressBookContact(Context context, Long contactRawId, String mimeType, String whatToAdd, String typeKey, int type, String data) throws RemoteException, OperationApplicationException {
    if(ActivityCompat.checkSelfPermission(context, Manifest.permission.WRITE_CONTACTS) == PackageManager.PERMISSION_DENIED) {
        return;
    }
    ArrayList<ContentProviderOperation> ops = new ArrayList<>();
    ops.add(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)
            .withValue(ContactsContract.Data.RAW_CONTACT_ID, contactRawId)
            .withValue(ContactsContract.Data.MIMETYPE, mimeType)
            .withValue(whatToAdd, data)
            .withValue(typeKey, type)
            .build());
    getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops);
}

Posting parameters Using POST:-

URL url;
URLConnection urlConn;
DataOutputStream printout;
DataInputStream  input;
url = new URL (getCodeBase().toString() + "env.tcgi");
urlConn = url.openConnection();
urlConn.setDoInput (true);
urlConn.setDoOutput (true);
urlConn.setUseCaches (false);
urlConn.setRequestProperty("Content-Type","application/json");   
urlConn.setRequestProperty("Host", "android.schoolportal.gr");
urlConn.connect();  
//Create JSONObject here
JSONObject jsonParam = new JSONObject();
jsonParam.put("ID", "25");
jsonParam.put("description", "Real");
jsonParam.put("enable", "true");

The part which you missed is in the the following... i.e., as follows..

// Send POST output.
printout = new DataOutputStream(urlConn.getOutputStream ());
printout.writeBytes(URLEncoder.encode(jsonParam.toString(),"UTF-8"));
printout.flush ();
printout.close ();

The rest of the thing you can do it.

Go to prompt command and type "adb devices". If it is empty, then make sure you allowed for "MTP Transfer" or similar and you enabled debugging on your phone.

To enable debugging, follow this tutorial: https://www.kingoapp.com/root-tutorials/how-to-enable-usb-debugging-mode-on-android.htm

Then type "adb devices" again. If a device is listed in there, then it should work now.

You may use this to access a specific folder and get particular image

 public void Retrieve(String path, String Name)
   {
    File imageFile = new File(path+Name);

    if(imageFile.exists()){

        Bitmap myBitmap = BitmapFactory.decodeFile(path+Name);
        myImage = (ImageView) findViewById(R.id.savedImage);
        myImage.setImageBitmap(myBitmap);
        Toast.makeText(SaveImage.this, myBitmap.toString(), Toast.LENGTH_LONG).show();

    }
}

And then you can call it by

Retrieve(Environment.getExternalStorageDirectory().toString()+"/Aqeel/Images/","Image2.PNG");
Toast.makeText(SaveImage.this, "Saved", Toast.LENGTH_LONG).show();

Try doing:

RecyclerView v = (RecyclerView) findViewById(...);
v.setNestedScrollingEnabled(false);

As an alternative, you can modify your layout using the support design library. I guess your current layout is something like:

<ScrollView >
   <LinearLayout >

       <View > <!-- upper content -->
       <RecyclerView > <!-- with custom layoutmanager -->

   </LinearLayout >
</ScrollView >

You can modify that to:

<CoordinatorLayout >

    <AppBarLayout >
        <CollapsingToolbarLayout >
             <!-- with your content, and layout_scrollFlags="scroll" -->
        </CollapsingToolbarLayout >
    </AppBarLayout >

    <RecyclerView > <!-- with standard layoutManager -->

</CoordinatorLayout >

However this is a longer road to take, and if you are OK with the custom linear layout manager, then just disable nested scrolling on the recycler view.

Edit (4/3/2016)

The v 23.2 release of the support libraries now includes a factory “wrap content” feature in all default LayoutManagers. I didn’t test it, but you should probably prefer it to that library you were using.

<ScrollView >
   <LinearLayout >

       <View > <!-- upper content -->
       <RecyclerView > <!-- with wrap_content -->

   </LinearLayout >
</ScrollView >

Just go to Your Application\app\build\outputs\apk

and copy both to phone and install app-debug.apk

In android google maps application there is a very easy way to find distance between 2 locations, to do so follow the following easy steps:

1. when you first open the app go to " your timeline " from the drop menue on the top left.

2. once the new windwo opens, chose from the settings on your top right menue and choose "add place".

3. add your places and name them lilke point 1 , point 2 , or any easy name to remember.
4. once your places are added and flagged go back to the main Window in your google app.
5. click on the blue circle with the arrow in your bottom right.
6. a new windwo will open and you can see on the top there are two text fields in which you can add your "from location" and "distance location".
7. click on any text field and type in your saved location in point 3.
8. click on the other text field and add your next saved location.
9. By doing so, google maps will calculate the distance between the two locations and show you the blue path on map ..

Good luck

Solution for those, who have problem after moving to KitKat:

"This will get the file path from the MediaProvider, DownloadsProvider, and ExternalStorageProvider, while falling back to the unofficial ContentProvider method" https://stackoverflow.com/a/20559175/690777

I've got this when an inappropriate character (/-one slash) was added to the values/strings.xml, and, of course, renaming of problematic resource was helpful. And one more important thing - check the date and time on your device.

With the release of Android Studio 4.1 Canary and Dev preview , you can use a new tool called

Database Inspector

Install AS 4.1+, run the app, open database inspector, now you can view your database files on the left side of the database inspector panel then select the table to view the content.

Live Queries

Either you can run you queries using Run SQL option or if you are using Room then open database inspector and run the app then, you can run the DAO queries in your interface by clicking on the run button on left of @Query annotation.

Try going to Project -> Properties -> Java Build Path -> Order & Export And Confirm Android Private Libraries are checked for your project and for all other library projects you are using in your Application.

I think if u add the following code, it will work

listview.invalidateViews();

To remove an item, Just remove that item from the arraylist that we passed to the adapter and do listview.invalidateViews();
This will refresh the listview

Happened to me when switching flavors.

Now you can also use the google-services.json with different flavors.

See https://stackoverflow.com/a/34364376/570168

This will work for the EditText:

android:inputType="text"

Then I would set a max length for the input text:

android:maxLines="1"

Those are the 2 that are needed now.

I have wrote a generic function in which you can pass context, icon is id drawable/mipmap image icon and new color which you need for that icon.

This function returns a drawable.

public static Drawable changeDrawableColor(Context context,int icon, int newColor) {
    Drawable mDrawable = ContextCompat.getDrawable(context, icon).mutate(); 
    mDrawable.setColorFilter(new PorterDuffColorFilter(newColor, PorterDuff.Mode.SRC_IN)); 
    return mDrawable;
} 

changeDrawableColor(getContext(),R.mipmap.ic_action_tune, Color.WHITE);

Here is what worked for me:

adb -d shell "run-as com.example.test cat /data/data/com.example.test/databases/data.db" > data.db

I'm printing the database directly into local file.

try using the setOnScrollListener and implement the onScrollStateChanged with scrollState

setOnScrollListener(new OnScrollListener(){
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
      // TODO Auto-generated method stub
    }
    public void onScrollStateChanged(AbsListView view, int scrollState) {
      // TODO Auto-generated method stub
      final ListView lw = getListView();

       if(scrollState == 0) 
      Log.i("a", "scrolling stopped...");


        if (view.getId() == lw.getId()) {
        final int currentFirstVisibleItem = lw.getFirstVisiblePosition();
         if (currentFirstVisibleItem > mLastFirstVisibleItem) {
            mIsScrollingUp = false;
            Log.i("a", "scrolling down...");
        } else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
            mIsScrollingUp = true;
            Log.i("a", "scrolling up...");
        }

        mLastFirstVisibleItem = currentFirstVisibleItem;
    } 
    }
  });

I would use a SpannableString to change the color.

int colorBlue = getResources().getColor(R.color.blue);
    String text = getString(R.string.text);
    SpannableString spannable = new SpannableString(text);
    // here we set the color
    spannable.setSpan(new ForegroundColorSpan(colorBlue), 0, text.length(), 0);

OR you may try this

First of all, android.graphics.Color is a class thats composed of only static methods. How and why did you create a new android.graphics.Color object? (This is completely useless and the object itself stores no data)

But anyways... I'm going to assume your using some object that actually stores data...

A integer is composed of 4 bytes (in java). Looking at the function getRGB() from the standard java Color object we can see java maps each color to one byte of the integer in the order ARGB (Alpha-Red-Green-Blue). We can replicate this behavior with a custom method as follows:

public int getIntFromColor(int Red, int Green, int Blue){
    Red = (Red << 16) & 0x00FF0000; //Shift red 16-bits and mask out other stuff
    Green = (Green << 8) & 0x0000FF00; //Shift Green 8-bits and mask out other stuff
    Blue = Blue & 0x000000FF; //Mask out anything not blue.

    return 0xFF000000 | Red | Green | Blue; //0xFF000000 for 100% Alpha. Bitwise OR everything together.
}

This assumes you can somehow retrieve the individual red, green and blue colour components and that all the values you passed in for the colours are 0-255.

If your RGB values are in form of a float percentage between 0 and 1 consider the following method:

public int getIntFromColor(float Red, float Green, float Blue){
    int R = Math.round(255 * Red);
    int G = Math.round(255 * Green);
    int B = Math.round(255 * Blue);

    R = (R << 16) & 0x00FF0000;
    G = (G << 8) & 0x0000FF00;
    B = B & 0x000000FF;

    return 0xFF000000 | R | G | B;
}

As others have stated, if you're using a standard java object, just use getRGB();

If you decide to use the android color class properly you can also do:

int RGB = android.graphics.Color.argb(255, Red, Green, Blue); //Where Red, Green, Blue are the RGB components. The number 255 is for 100% Alpha

or

int RGB = android.graphics.Color.rgb(Red, Green, Blue); //Where Red, Green, Blue are the RGB components.

as others have stated... (Second function assumes 100% alpha)

Both methods basically do the same thing as the first method created above.

I may also add, that nowadays it is possible to decompile Android application online, no software needed!

Here are 2 options for you:

• http://www.decompileandroid.com/
• http://www.javadecompilers.com/apk

Yes, you can use Java 8 Language features in Android Studio but the version must be 3.0 or higher. Read this article for how to use java 8 features in the android studio.

https://bijay-budhathoki.blogspot.com/2020/01/use-java-8-language-features-in-android-studio.html

Unzip the github project to a folder. Open Android Studio. Go to File -> New -> Import Project. Then choose the specific project you want to import and then click Next->Finish. It will build the Gradle automatically and'll be ready for you to use.

P.S: In some versions of Android Studio a certain error occurs-
error:package android.support.v4.app does not exist.
To fix it go to Gradle Scripts->build.gradle(Module:app) and the add the dependecies:

dependencies {      
    compile fileTree(dir: 'libs', include: ['*.jar'])  
    compile 'com.android.support:appcompat-v7:21.0.3'  
}

Enjoy working in Android Studio

On a Mac

Delete these using the terminal (usage: rm -rf folderpath):

~/Library/Preferences/AndroidStudioBeta
~/Library/Application Support/AndroidStudioBeta
~/Library/Caches/AndroidStudioBeta
~/Library/Logs/AndroidStudioBeta

After experimenting on that case: android:textColor="@colors/text_color" is wrong since @color is not filename dependant. You can name your resource file foobar.xml, it doesn't matter but if you have defined some colors in it you can access them using @color/some_color.

Update:

file location: res/values/colors.xml The filename is arbitrary. The element's name will be used as the resource ID. (Source)

Solution:

Add the below line in your application tag:

android:usesCleartextTraffic="true"

As shown below:

<application
    ....
    android:usesCleartextTraffic="true"
    ....>

UPDATE: If you have network security config such as: android:networkSecurityConfig="@xml/network_security_config"

No Need to set clear text traffic to true as shown above, instead use the below code:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        ....
        ....
    </domain-config>

    <base-config cleartextTrafficPermitted="false"/>
</network-security-config>  

Set the cleartextTrafficPermitted to true

Hope it helps.

For future readers!

Starting from material-components-android 1.2.0-alpha01, you can use new slider component

ex:

Modify thumbSize, thumbColor, trackColor accordingly.

<com.google.android.material.slider.Slider
        android:id="@+id/slider"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:valueFrom="20f"
        android:valueTo="70f"
        android:stepSize="10"
        app:thumbRadius="20dp"
        app:thumbColor="@color/colorAccent"
        app:trackColor="@android:color/darker_gray"
        />

Note: Track corners are not round.

Be sure that android:debuggable="true" is set in the application tag of your manifest file, and then:

1. Plug your phone into your computer and enable USB debugging on the phone
2. Open eclipse and a workspace containing the code for your app
3. In Eclipse, go to Window->Show View->Devices
4. Look at the Devices view which should now be visible, you should see your device listed
5. If your device isn't listed, you'll have to track down the ADB drivers for your phone before continuing
6. If you want to step through code, set a breakpoint somewhere in your app
7. Open the app on your phone
8. In the Devices view, expand the entry for your phone if it isn't already expanded, and look for your app's package name.
9. Click on the package name, and in the top right of the Devices view you should see a green bug along with a number of other small buttons. Click the green bug.
10. You should now be attached/debugging your app.

Use something like this :

   public void onClick(View v) {
            // TODO Auto-generated method stub
           startActivity(new Intent("com.droidnova.android.splashscreen.MyApp"));
        }

GET and POST using OkHttp

private const val CONNECT_TIMEOUT = 15L
private const val READ_TIMEOUT = 15L
private const val WRITE_TIMEOUT = 15L

private fun performPostOperation(urlString: String, jsonString: String, token: String): String? {
    return try {
        val client = OkHttpClient.Builder()
            .connectTimeout(CONNECT_TIMEOUT, TimeUnit.SECONDS)
            .writeTimeout(WRITE_TIMEOUT, TimeUnit.SECONDS)
            .readTimeout(READ_TIMEOUT, TimeUnit.SECONDS)
            .build()

        val body = jsonString.toRequestBody("application/json; charset=utf-8".toMediaTypeOrNull())

        val request = Request.Builder()
            .url(URL(urlString))
            .header("Authorization", token)
            .post(body)
            .build()

        val response = client.newCall(request).execute()
        response.body?.string()
    }
    catch (e: IOException) {
        e.printStackTrace()
        null
    }
}

private fun performGetOperation(urlString: String, token: String): String? {
    return try {
        val client = OkHttpClient.Builder()
            .connectTimeout(CONNECT_TIMEOUT, TimeUnit.SECONDS)
            .writeTimeout(WRITE_TIMEOUT, TimeUnit.SECONDS)
            .readTimeout(READ_TIMEOUT, TimeUnit.SECONDS)
            .build()

        val request = Request.Builder()
            .url(URL(urlString))
            .header("Authorization", token)
            .get()
            .build()

        val response = client.newCall(request).execute()
        response.body?.string()
    }
    catch (e: IOException) {
        e.printStackTrace()
        null
    }
}

Object serialization and deserialization

@Throws(JsonProcessingException::class)
fun objectToJson(obj: Any): String {
    return ObjectMapper().writeValueAsString(obj)
}

@Throws(IOException::class)
fun jsonToAgentObject(json: String?): MyObject? {
    return if (json == null) { null } else {
        ObjectMapper().readValue<MyObject>(json, MyObject::class.java)
    }
}

Dependencies

Put the following lines in your gradle (app) file. Jackson is optional. You can use it for object serialization and deserialization.

implementation 'com.squareup.okhttp3:okhttp:4.3.1'
implementation 'com.fasterxml.jackson.core:jackson-core:2.9.8'
implementation 'com.fasterxml.jackson.core:jackson-annotations:2.9.8'
implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.8'

I had the same issue, but I have resolved it the next:

1) Install jdk1.8...

2) In AndroidStudio File->Project Structure->SDK Location, select your directory where the JDK is located, by default Studio uses embedded JDK but for some reason it produces error=216.

3) Click Ok.

All the above examples will actually REPLACE any params already present for the View, which may not be desired. The below code will just extend the existing params, without replacing them:

ImageView myImage = (ImageView) findViewById(R.id.image_view);
MarginLayoutParams marginParams = (MarginLayoutParams) image.getLayoutParams();
marginParams.setMargins(left, top, right, bottom);

If you don't want to use JavaCV this works for me...

Step 1- Download the Resources

Download OpenCV Android SDK from http://opencv.org/downloads.html

Step 2 - Copying the OpenCV binaries into your APK

Copy libopencv_info.so & libopencv_java.so from

OpenCV-2.?.?-android-sdk -> sdk -> native -> libs -> armeabi-v7a

to

Project Root -> Your Project -> lib - > armeabi-v7a

Zip the lib folder up and rename that zip to whatever-v7a.jar.

Copy this .jar file and place it in here in your project

Project Root -> Your Project -> libs

Add this line to your projects build.gradle in the dependencies section

compile files('libs/whatever-v7a.jar')

When you compile now you will probably see your .apk is about 4mb bigger.

(Repeat for "armeabi" if you want to support ARMv6 too, likely not needed anymore.)

Step 3 - Adding the java sdk to your project

Copy the java folder from here

OpenCV-2.?.?-android-sdk -> sdk

to

Project Root -> Your Project -> libs (Same place as your .jar file);

(You can rename the 'java' folder name to 'OpenCV')

In this freshly copied folder add a typical build.gradle file; I used this:

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.6.+'
    }
}

apply plugin: 'android-library'

repositories {
    mavenCentral();
}

android {
    compileSdkVersion 19
    buildToolsVersion "19"

    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 19
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }
    }
}

In your Project Root settings.gradle file change it too look something like this:

include ':Project Name:libs:OpenCV', ':Project Name'

In your Project Root -> Project Name -> build.gradle file in the dependencies section add this line:

compile project(':Project Name:libs:OpenCV')

Step 4 - Using OpenCV in your project

Rebuild and you should be able to import and start using OpenCV in your project.

import org.opencv.android.OpenCVLoader;
...
if (!OpenCVLoader.initDebug()) {}

I know this if a bit of hack but I figured I would post it anyway.

Since API level 21 you can use :

android:backgroundTint="@android:color/white"

you only have to add this in your xml

Deprecated:

Add one more property android:singleLine="true" in your Textview

Updated:

android:ellipsize="end" 
android:maxLines="1"

try adding android:scaleType="fitXY" to your ImageView.

A Kotlin version I made based on the great answer by edwardaa

class RecyclerItemDecoration(private val spanCount: Int, private val spacing: Int) : RecyclerView.ItemDecoration() {

  override fun getItemOffsets(outRect: Rect, view: View, parent: RecyclerView, state: RecyclerView.State) {

    val spacing = Math.round(spacing * parent.context.resources.displayMetrics.density)
    val position = parent.getChildAdapterPosition(view)
    val column = position % spanCount

    outRect.left = spacing - column * spacing / spanCount
    outRect.right = (column + 1) * spacing / spanCount

    outRect.top = if (position < spanCount) spacing else 0
    outRect.bottom = spacing
  }

}

For those, who tried the accepted answer and have no success,

I tried also the accepted answer and did not work for me. After that, I updated my project with the repository and synchronized the project and the could not resolve warnings are gone.

May be i did not fully understand the problem, but, centering all view inside a ConstraintLayout seems very simple. This is what I used:

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center">

Last two lines did the trick!

Its very simple. Just create a View with the black background color.

<View
    android:layout_width="match_parent"
    android:layout_height="1dp"
    android:background="#000"/>

This will create a horizontal line with background color. You can also add other attributes such as margins, paddings etc just like any other view.

If you develop for Android KitKat or newer, you could also use a switch statement (see: Android coding with switch (String)). e.g.

switch(yourString)
{
     case "john":
          //do something for john
     case "mary":
          //do something for mary
}

Did you edit the AndroidManifest.xml directly in the .apk file? If so, that won't work.

Every Android .apk needs to be signed if it is going to be installed on a phone, even if you're not installing through the Market. The development tools work round this by signing with a development certificate but the .apk is still signed.

One use of this is so a device can tell if an .apk is a valid upgrade for an installed application, since if it is the Certificates will be the same.

So if you make any changes to your app at all you'll need to rebuild the .apk so it gets signed properly.

Just follow these steps to transfer the apk onto the real device(with debugger key) and which is just for testing purpose. (Note: For proper distribution to the market you may need to sign your app with your keys and follow all the steps.)

1. Install your app onto the emulator.
2. Once it is installed goto DDMS, select the current running app under the devices window. This will then show all the files related to it under the file explorer.
3. Under file explorer go to data->app and select your APK (which is the package name of the app).
4. Select it and click on 'Pull a file from the device' button (the one with the save symbol).
5. This copies the APK to your system. From there you can copy the file to your real device, install and test it.

Good luck !

User "portrait" in your AndroidManifest.xml file might seem like a good solution. But it forces certain devices (that work best in landscape) to go into portrait, not getting the proper orientation. On the latest Android version, you will get wearing an error. So my suggestion it's better to use "nosensor".

<activity
        ...
        ...
        android:screenOrientation="nosensor">

There is a library named Picasso which can efficiently load images from a URL. It can also load an image from a file.

Examples:

1. Load URL into ImageView without generating a bitmap:

   Picasso.with(context) // Context
          .load("http://abc.imgur.com/gxsg.png") // URL or file
          .into(imageView); // An ImageView object to show the loaded image
   

2. Load URL into ImageView by generating a bitmap:

   Picasso.with(this)
          .load(artistImageUrl)
          .into(new Target() {
              @Override
              public void onBitmapLoaded(final Bitmap bitmap, Picasso.LoadedFrom from) {
                  /* Save the bitmap or do something with it here */
   
                  // Set it in the ImageView
                  theView.setImageBitmap(bitmap)
              }
   
              @Override
              public void onBitmapFailed(Drawable errorDrawable) {
   
              }
   
              @Override
              public void onPrepareLoad(Drawable placeHolderDrawable) {
   
              }
          });
   

There are many more options available in Picasso. Here is the documentation.

adb shell
am start -n com.package.name/com.package.name.ActivityName

Or you can use this directly:

adb shell am start -n com.package.name/com.package.name.ActivityName

You can also specify actions to be filter by your intent-filters:

am start -a com.example.ACTION_NAME -n com.package.name/com.package.name.ActivityName

Android provides a couple of different library sets. One is called the Android support Library, and the other is called AndroidX. Selecting "Use android.* artifacts" indicates that we want to use AndroidX.

To have a more in-depth knowledge of what's happening, I created the following example. Have a look at the activity_main.xml and content_profile.xml files.

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include layout="@layout/content_profile" />

</LinearLayout>

content_profile.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Howdy" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Hi there" />

</LinearLayout>

In here, the entire layout file when inflated looks like this.

<LinearLayout>
    <LinearLayout>
        <TextView />
        <TextView />
    </LinearLayout>
</LinearLayout>

See that there is a LinearLayout inside the parent LinearLayout which doesn't serve any purpose and is redundant. A look at the layout through Layout Inspector tool clearly explains this.

content_profile.xml after updating the code to use merge instead of a ViewGroup like LinearLayout.

<merge xmlns:android="http://schemas.android.com/apk/res/android">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Howdy" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Hi there" />

</merge>

Now our layout looks like this

<LinearLayout>
    <TextView />
    <TextView />
</LinearLayout>

Here we see that the redundant LinearLayout ViewGroup is removed. Now Layout Inspector tool gives the following layout hierarchy.

So always try to use merge when your parent layout can position your child layouts, or more precisely use merge when you understand that there is going to be a redundant view group in the hierarchy.

// variable declaration
TextToSpeech tts;

// TextToSpeech initialization, must go within the onCreate method
tts = new TextToSpeech(getActivity(), new TextToSpeech.OnInitListener() {
 @Override
 public void onInit(int i) {
  if (i == TextToSpeech.SUCCESS) {
   int result = tts.setLanguage(Locale.US);
   if (result == TextToSpeech.LANG_MISSING_DATA ||
    result == TextToSpeech.LANG_NOT_SUPPORTED) {
    Log.e("TTS", "Lenguage not supported");
   }
  } else {
   Log.e("TTS", "Initialization failed");
  }
 }
});

// method call
public void buttonSpeak().setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View view) {
  speak();
 }
});
}

private void speak() {
 tts.speak("Text to Speech Test", TextToSpeech.QUEUE_ADD, null);
}

@Override
public void onDestroy() {
 if (tts != null) {
  tts.stop();
  tts.shutdown();
 }
 super.onDestroy();
}

taken from: Text to Speech Youtube Tutorial

Adding this android:hardwareAccelerated="true" in the manifest was the only thing that significantly improved the performance for me

More info here: http://developer.android.com/guide/topics/manifest/application-element.html#hwaccel

Ok So after hours of trying finally implemented it. Below is the code ..

  buttons.get(2).setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View view) {
       if(buttons.get(2).getText().toString().equalsIgnoreCase(getResources().getString(R.string.show))){
           editTexts.get(1).setInputType(InputType.TYPE_CLASS_TEXT);
           editTexts.get(1).setSelection(editTexts.get(1).getText().length());
           buttons.get(2).setText(getResources().getString(R.string.hide));
        }else{
           editTexts.get(1).setInputType(InputType.TYPE_CLASS_TEXT|InputType.TYPE_TEXT_VARIATION_PASSWORD);
           //editTexts.get(1).setTransformationMethod(PasswordTransformationMethod.getInstance());
           editTexts.get(1).setSelection(editTexts.get(1).getText().length());
           buttons.get(2).setText(getResources().getString(R.string.show));
       }

    }
});

Explanations:- I have a button with default text as show. After onclick event on it checking if button's text is show. If it is show then changing the input type,adjusting the cursor position and setting new text as hide in it.

When it is hide... doing reverse i.e. hiding the password,adjusting the cursor and setting the text as show. And that's it. It is working like a charm.

I guess the same error happened to me after I installed Docker. The solution below worked for me:

1. Go to Turn Windows features on and off
2. Uncheck the Hyper-V checkbox

3. Uninstall Intel Hardware Accelerated Execution Manager via Programs and Features. After the uninstall process, restart your computer (trying to install a new release of HAXM without rebooting didn't work for me).
4. Go to HAXM GitHub page and download the release. I downloaded HAXM v7.6.5.
5. Install HAXM

After all these steps, everything is fine for me.

In order to set the color of highlighted item you need to set the color of cell.SelectionStyle in iOS.

This example is to set the color of tapped item to transparent.

If you want you can change it with other colors from UITableViewCellSelectionStyle. This is to be written in the platform project of iOS by creating a new Custom ListView renderer in your Forms project.

public class CustomListViewRenderer : ListViewRenderer
    {
        protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            base.OnElementPropertyChanged(sender, e);

            if (Control == null)
            {
                return;
            }

            if (e.PropertyName == "ItemsSource")
            {
                foreach (var cell in Control.VisibleCells)
                {
                    cell.SelectionStyle = UITableViewCellSelectionStyle.None;
                }
            }
        }
    }

For android you can add this style in your values/styles.xml

<style name="ListViewStyle.Light" parent="android:style/Widget.ListView">
    <item name="android:listSelector">@android:color/transparent</item>
    <item name="android:cacheColorHint">@android:color/transparent</item>
  </style>

If you are using a fragment and using AlertDialog/Toast message then use getActivity() in the context parameter.

like this

ProgressDialog pdialog;
pdialog = new ProgressDialog(getActivity());
pdialog.setCancelable(true);
pdialog.setMessage("Loading ....");
pdialog.show();

if you don't want to see Cannot invoke method readLine() on null object. you need write in gradle.properties first.

KEYSTORE_PASS=*****
ALIAS_NAME=*****
ALIAS_PASS=*****

implementation 'com.android.support:appcompat-v7:28.0' implementation 'com.android.support:support-media-compat:28.0.0' implementation 'com.android.support:support-v4:28.0.0' All to add

Per the Android docs SystemClock.elapsedRealtime() is the recommend basis for general purpose interval timing. This is because, per the documentation, elapsedRealtime() is guaranteed to be monotonic, [...], so is the recommend basis for general purpose interval timing.

The SystemClock documentation has a nice overview of the various time methods and the applicable use cases for them.

• SystemClock.elapsedRealtime() and SystemClock.elapsedRealtimeNanos() are the best bet for calculating general purpose elapsed time.
• SystemClock.uptimeMillis() and System.nanoTime() are another possibility, but unlike the recommended methods, they don't include time in deep sleep. If this is your desired behavior then they are fine to use. Otherwise stick with elapsedRealtime().
• Stay away from System.currentTimeMillis() as this will return "wall" clock time. Which is unsuitable for calculating elapsed time as the wall clock time may jump forward or backwards. Many things like NTP clients can cause wall clock time to jump and skew. This will cause elapsed time calculations based on currentTimeMillis() to not always be accurate.

When the game starts:

long startTime = SystemClock.elapsedRealtime();

When the game ends:

long endTime = SystemClock.elapsedRealtime();
long elapsedMilliSeconds = endTime - startTime;
double elapsedSeconds = elapsedMilliSeconds / 1000.0;

Also, Timer() is a best effort timer and will not always be accurate. So there will be an accumulation of timing errors over the duration of the game. To more accurately display interim time, use periodic checks to System.currentTimeMillis() as the basis of the time sent to setText(...).

Also, instead of using Timer, you might want to look into using TimerTask, this class is designed for what you want to do. The only problem is that it counts down instead of up, but that can be solved with simple subtraction.

I solved it by removing this line:

android:theme="@style/Theme.MyCompatTheme"

from activity properties in the Manifest file

How come no-one seems to like repr?
python 3.7.2:

>>> int_list = [1, 2, 3, 4, 5]
>>> print(repr(int_list))
[1, 2, 3, 4, 5]
>>> 

Take care though, it's an explicit representation. An example shows:

#Print repr(object) backwards
>>> print(repr(int_list)[::-1])
]5 ,4 ,3 ,2 ,1[
>>> 

more info at pydocs-repr

To delete all the records except te last N you may use the query reported below.

It's a single query but with many statements so it's actually not a single query the way it was intended in the original question.

Also you need a variable and a built-in (in the query) prepared statement due to a bug in MySQL.

Hope it may be useful anyway...

nnn are the rows to keep and theTable is the table you're working on.

I'm assuming you have an autoincrementing record named id

SELECT @ROWS_TO_DELETE := COUNT(*) - nnn FROM `theTable`;
SELECT @ROWS_TO_DELETE := IF(@ROWS_TO_DELETE<0,0,@ROWS_TO_DELETE);
PREPARE STMT FROM "DELETE FROM `theTable` ORDER BY `id` ASC LIMIT ?";
EXECUTE STMT USING @ROWS_TO_DELETE;

The good thing about this approach is performance: I've tested the query on a local DB with about 13,000 record, keeping the last 1,000. It runs in 0.08 seconds.

The script from the accepted answer...

DELETE FROM `table`
WHERE id NOT IN (
  SELECT id
  FROM (
    SELECT id
    FROM `table`
    ORDER BY id DESC
    LIMIT 42 -- keep this many records
  ) foo
);

Takes 0.55 seconds. About 7 times more.

Test environment: mySQL 5.5.25 on a late 2011 i7 MacBookPro with SSD

I was having this problem on Ubuntu 12.04.3 LTS (well beyond EOL, I know...) and got around it with:

sudo apt-get update && sudo apt-get install ca-certificates

Have a look:

Laravel 4.2 Documentation

Syntax (Via Composer):

composer create-project laravel/laravel {directory} 4.2 --prefer-dist

Example:

composer create-project laravel/laravel my_laravel_dir 4.2

Where 4.2 is your version of laravel.

Note: It will take the latest version of Laravel automatically If you will not provide any version.

would this work?

function eraseCookie(name) {
    document.cookie = name + '=; Max-Age=0'
}

I know Max-Age causes the cookie to be a session cookie in IE when creating the cookie. Not sure how it works when deleting cookies.

Try this:

printf '\n%s\n' 'I want this on a new line!'

That allows you to separate the formatting from the actual text. You can use multiple placeholders and multiple arguments.

quantity=38; price=142.15; description='advanced widget'
$ printf '%8d%10.2f  %s\n' "$quantity" "$price" "$description"
      38    142.15  advanced widget

interestingly, in C# you have the keyword const that translates to C++'s static const, as opposed to readonly which can be only set at constructors and initializations, even by non-constants, ex:

readonly DateTime a = DateTime.Now;

I agree, if you have a const pre-defined array you might as well make it static. At that point you can use this interesting syntax:

//in header file
class a{
    static const int SIZE;
    static const char array[][10];
};
//in cpp file:
const int a::SIZE = 5;
const char array[SIZE][10] = {"hello", "cruel","world","goodbye", "!"};

however, I did not find a way around the constant '10'. The reason is clear though, it needs it to know how to perform accessing to the array. A possible alternative is to use #define, but I dislike that method and I #undef at the end of the header, with a comment to edit there at CPP as well in case if a change.

To Enable the Bluetooth you could use either of the following functions:

 public void enableBT(View view){
    BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if (!mBluetoothAdapter.isEnabled()){
        Intent intentBtEnabled = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); 
        // The REQUEST_ENABLE_BT constant passed to startActivityForResult() is a locally defined integer (which must be greater than 0), that the system passes back to you in your onActivityResult() 
        // implementation as the requestCode parameter. 
        int REQUEST_ENABLE_BT = 1;
        startActivityForResult(intentBtEnabled, REQUEST_ENABLE_BT);
        }
  }

The second function is:

public void enableBT(View view){
    BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if (!mBluetoothAdapter.isEnabled()){
        mBluetoothAdapter.enable();
    }
}

The difference is that the first function makes the app ask the user a permission to turn on the Bluetooth or to deny. The second function makes the app turn on the Bluetooth directly.

To Disable the Bluetooth use the following function:

public void disableBT(View view){
    BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if (mBluetoothAdapter.isEnabled()){
        mBluetoothAdapter.disable();
    }
}

NOTE/ The first function needs only the following permission to be defined in the AndroidManifest.xml file:

<uses-permission android:name="android.permission.BLUETOOTH"/>

While, the second and third functions need the following permissions:

<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>

Set "VM options" like: "-cp $Classpath$;your_classpath"

$mylabel.text( $mylabel.text().replace('-', '') );

Since text() gets the value, and text( "someValue" ) sets the value, you just place one inside the other.

Would be the equivalent of doing:

var newValue = $mylabel.text().replace('-', '');
$mylabel.text( newValue );

EDIT:

I hope I understood the question correctly. I'm assuming $mylabel is referencing a DOM element in a jQuery object, and the string is in the content of the element.

If the string is in some other variable not part of the DOM, then you would likely want to call the .replace() function against that variable before you insert it into the DOM.

Like this:

var someVariable = "-123456";
$mylabel.text( someVariable.replace('-', '') );

or a more verbose version:

var someVariable = "-123456";
someVariable = someVariable.replace('-', '');
$mylabel.text( someVariable );

Run cmd as administrator, then:

setx /M PATH "%PATH%;<your-new-path>"

The /M option sets the variable at SYSTEM scope. The default behaviour is to set it for the USER.

TL;DR

The truncation issue happens because when you echo %PATH% it will show the concatenation of SYSTEM and USER values. So when you add it in your second argument to setx, it will be fitting SYSTEM and USER values inside the USER var. When you echo again, things will be doubled.

Additionally, the /M option requires administrator privilege, so you need to open your terminal with "run as administrator", otherwise setx will complain with "access to registry path is denied".

Last thing to note: You won't see the new value when you echo %PATH% just after setting it this way, you need to close cmd and open again.

If you want to check the actual values stored in registry check this question.

There is no explicit way to change the favicon globally using CSS that I know of. But you can use a simple trick to change it on the fly.

First just name, or rename, the favicon to "favicon.ico" or something similar that will be easy to remember, or is relevant for the site you're working on. Then add the link to the favicon in the head as you usually would. Then when you drop in a new favicon just make sure it's in the same directory as the old one, and that it has the same name, and there you go!

It's not a very elegant solution, and it requires some effort. But dropping in a new favicon in one place is far easier than doing a find and replace of all the links, or worse, changing them manually. At least this way doesn't involve messing with the code.

Of course dropping in a new favicon with the same name will delete the old one, so make sure to backup the old favicon in case of disaster, or if you ever want to go back to the old design.

I think this should do the trick (untested):

Page.Response.Redirect(Page.Request.Url.ToString(), true);

It's my solution to save local data to txt file.

function export2txt() {_x000D_
  const originalData = {_x000D_
    members: [{_x000D_
        name: "cliff",_x000D_
        age: "34"_x000D_
      },_x000D_
      {_x000D_
        name: "ted",_x000D_
        age: "42"_x000D_
      },_x000D_
      {_x000D_
        name: "bob",_x000D_
        age: "12"_x000D_
      }_x000D_
    ]_x000D_
  };_x000D_
_x000D_
  const a = document.createElement("a");_x000D_
  a.href = URL.createObjectURL(new Blob([JSON.stringify(originalData, null, 2)], {_x000D_
    type: "text/plain"_x000D_
  }));_x000D_
  a.setAttribute("download", "data.txt");_x000D_
  document.body.appendChild(a);_x000D_
  a.click();_x000D_
  document.body.removeChild(a);_x000D_
}

<button onclick="export2txt()">Export data to local txt file</button>

C/C++ standard library <stdlib.h> contains qsort function.

This is not the best quick sort implementation in the world but it fast enough and VERY EASY to be used... the formal syntax of qsort is:

qsort(<arrayname>,<size>,sizeof(<elementsize>),compare_function);

The only thing that you need to implement is the compare_function, which takes in two arguments of type "const void", which can be cast to appropriate data structure, and then return one of these three values:

• negative, if a should be before b
• 0, if a equal to b
• positive, if a should be after b

1. Comparing a list of integers:

simply cast a and b to integers if x < y,x-y is negative, x == y, x-y = 0, x > y, x-y is positive x-y is a shortcut way to do it :) reverse *x - *y to *y - *x for sorting in decreasing/reverse order

int compare_function(const void *a,const void *b) {
int *x = (int *) a;
int *y = (int *) b;
return *x - *y;
}

2. Comparing a list of strings:

For comparing string, you need strcmp function inside <string.h> lib. strcmp will by default return -ve,0,ve appropriately... to sort in reverse order, just reverse the sign returned by strcmp

#include <string.h>
int compare_function(const void *a,const void *b) {
return (strcmp((char *)a,(char *)b));
}

3. Comparing floating point numbers:

int compare_function(const void *a,const void *b) {
double *x = (double *) a;
double *y = (double *) b;
// return *x - *y; // this is WRONG...
if (*x < *y) return -1;
else if (*x > *y) return 1; return 0;
}

4. Comparing records based on a key:

Sometimes you need to sort a more complex stuffs, such as record. Here is the simplest way to do it using qsort library.

typedef struct {
int key;
double value;
} the_record;

int compare_function(const void *a,const void *b) {
the_record *x = (the_record *) a;
the_record *y = (the_record *) b;
return x->key - y->key;
}

Maybe a newer option?

library("tidyverse")

bob <- bob %>% group_by_if(is.factor, as.character)

Now my aim was to have one pair with an base type and a type definition (Requirement A). For the type definition I want to use inheritance (Requirement B). The use should be possible, without explicite knowledge over the base type (Requirement C).

After I know now that the gernic constraints are not used for solving the generic return type, I experimented a little bit:

Ok let's introducte Get2:

class ServiceGate
{
    public IAccess<C, T> Get1<C, T>(C control) where C : ISignatur<T>
    {
        throw new NotImplementedException();
    }

    public IAccess<ISignatur<T>, T> Get2<T>(ISignatur<T> control)
    {
        throw new NotImplementedException();
    }
}

class Test
{
    static void Main()
    {
        ServiceGate service = new ServiceGate();
        //var bla1 = service.Get1(new Signatur()); // CS0411
        var bla = service.Get2(new Signatur()); // Works
    }
}

Fine, but this solution reaches not requriement B.

Next try:

class ServiceGate
{
    public IAccess<C, T> Get3<C, T>(C control, ISignatur<T> iControl) where C : ISignatur<T>
    {
        throw new NotImplementedException();
    }

}

class Test
{
    static void Main()
    {
        ServiceGate service = new ServiceGate();
        //var bla1 = service.Get1(new Signatur()); // CS0411
        var bla = service.Get2(new Signatur()); // Works
        var c = new Signatur();
        var bla3 = service.Get3(c, c); // Works!! 
    }
}

Nice! Now the compiler can infer the generic return types. But i don't like it. Other try:

class IC<A, B>
{
    public IC(A a, B b)
    {
        Value1 = a;
        Value2 = b;
    }

    public A Value1 { get; set; }

    public B Value2 { get; set; }
}

class Signatur : ISignatur<bool>
{
    public string Test { get; set; }

    public IC<Signatur, ISignatur<bool>> Get()
    {
        return new IC<Signatur, ISignatur<bool>>(this, this);
    }
}

class ServiceGate
{
    public IAccess<C, T> Get4<C, T>(IC<C, ISignatur<T>> control) where C : ISignatur<T>
    {
        throw new NotImplementedException();
    }
}

class Test
{
    static void Main()
    {
        ServiceGate service = new ServiceGate();
        //var bla1 = service.Get1(new Signatur()); // CS0411
        var bla = service.Get2(new Signatur()); // Works
        var c = new Signatur();
        var bla3 = service.Get3(c, c); // Works!!
        var bla4 = service.Get4((new Signatur()).Get()); // Better...
    }
}

My final solution is to have something like ISignature<B, C>, where B ist the base type and C the definition...

This worked for me:

curl -u $username:$api_token -FSubmit=Build 'http://<jenkins-server>/job/<job-name>/buildWithParameters?environment='

API token can be obtained from Jenkins user configuration.

Using detach is magnitudes faster than any of the other answers here:

$('#mytable').find('tbody').detach();

Don't forget to put the tbody element back into the table since detach removed it:

$('#mytable').append($('<tbody>'));  

Also note that when talking efficiency $(target).find(child) syntax is faster than $(target > child). Why? Sizzle!

Elapsed Time to Empty 3,161 Table Rows

Using the Detach() method (as shown in my example above):

• Firefox: 0.027s
• Chrome: 0.027s
• Edge: 1.73s
• IE11: 4.02s

Using the empty() method:

• Firefox: 0.055s
• Chrome: 0.052s
• Edge: 137.99s (might as well be frozen)
• IE11: Freezes and never returns

Try using additional condition in join:

SELECT Table1.Col1, Table1.Col2, Table1.Col3, Table2.Col4
FROM Table1 
INNER JOIN Table2
ON (Table1.Col1 = Table2.Col1 
    OR (Table1.Col1 IS NULL AND Table2.Col1 IS NULL)
   )

try this ,hope it helps

select user_display_image as user_image,
user_display_name as user_name,
invitee_phone,
(
 CASE 
    WHEN invitee_status=1 THEN "attending" 
    WHEN invitee_status=2 THEN "unsure" 
    WHEN invitee_status=3 THEN "declined" 
    WHEN invitee_status=0 THEN "notreviwed" END
) AS  invitee_status
 FROM your_tbl

A good way to findout what header file you are missing:

 man <section> <function call>

To find out the section use:

apropos <function call>

Example:

 man 3 memset
 man 2 send

Edit in response to James Morris:

• Section | Description
• 1 General commands
• 2 System calls
• 3 C library functions
• 4 Special files (usually devices, those found in /dev) and drivers
• 5 File formats and conventions
• 6 Games and screensavers
• 7 Miscellanea
• 8 System administration commands and daemons

Source: Wikipedia Man Page

Can't figure out how to add to the code or reply to the message but here's support for jython that you can tack in before you give up:

# jython
try:
    from java.lang import Runtime
    runtime = Runtime.getRuntime()
    res = runtime.availableProcessors()
    if res > 0:
        return res
except ImportError:
    pass

The quick and dirty way I use to export mysql output to a file is

$ mysql <database_name> --tee=<file_path>

and then use the exported output (which you can find in <file_path>) wherever I want.

Note that this is the only way you have in order to avoid databases running using the secure-file-priv option, which prevents the usage of INTO OUTFILE suggested in the previous answers:

ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement

STEP 1: FIRST OPEN THE COMMAND PROMPT WHERE YOUR FILE IS LOCATED. (right click while pressing shift)
STEP 2: THEN USE THE FOLLOWING COMMANDS TO EXECUTE. (lets say the file and class name to be executed is named as Student.java)The example program is in the picture background.

     javac Student.java
     java Student

Since you have master page and your control is in content place holder, Your control id will be generated different in client side. you need to do like...

var TestVar = document.getElementById('<%= txt_model_code.ClientID %>').value;

Javascript runs on client side and to get value you have to provide client id of your control

If you want to open .img files, you can use 7-zip, which is freeware...

http://www.7-zip.org/

Once installed, right click on the relevant img file, hover over "7-zip", then click "Open Archive". Bear in mind, you need a seperate program, or Windows 7 to burn the image to disc!

Hope this helps!

Edit: Proof that it works (not my video, credit to howtodothe on YouTube).

You can import the sample project of Google in Android Studio by clicking File > Import Sample...

This Sample contains a FloatingActionButton View which inherits from FrameLayout.

Edit With the new Support Design Library you can implement it like in this example: https://github.com/chrisbanes/cheesesquare

I would just like to add that if the String is originally encoded using the wrong encoding it might be impossible to change it to another encoding without errors. The question does not state that the conversion here is made from wrong encoding to correct encoding but I personally stumbled to this question just because of this situation so just a heads up for others as well.

This answer in other question gives an explanation why the conversion does not always yield correct results https://stackoverflow.com/a/2623793/4702806

Another method is to use the pad keyword from plt.subplots_adjust(), which also accepts negative values:

import matplotlib.pyplot as plt

ax = [plt.subplot(2,2,i+1) for i in range(4)]

for a in ax:
    a.set_xticklabels([])
    a.set_yticklabels([])

plt.subplots_adjust(pad=-5.0)

Additionally, to remove the white at the outer fringe of all subplots (i.e. the canvas), always save with plt.savefig(fname, bbox_inches="tight").

Better and quicker approach without any software to download.

• Open command prompt and follow steps mentioned below
• cd path/from/where/file/istobe/copied
• ftp (serverip or name)
• It will ask for Server(AIX) User: (username)
• It will ask for password : (password)
• cd path/where/file/istobe/copied
• pwd (to check current path)
• mput (directory name which is to be copied)

This should work.

you don't need to declare Map groovy internally recognizes it

def personDetails = [firstName:'John', lastName:'Doe', fullName:'John Doe']

// print the values..
    println "First Name: ${personDetails.firstName}"
    println "Last Name: ${personDetails.lastName}"

http://grails.asia/groovy-map-tutorial

ListView.FocusedItem.Index 

or you can use foreach loop like this

int index= -1;
foreach (ListViewItem itm in listView1.SelectedItems)
{
    if (itm.Selected)
    {
        index= itm.Index;
    }
}

Take a look at this JQuery plugin:

http://fixedheadertable.com

It adds vertical (fixed header row) or horizontal (fixed first column) scrolling to an existing HTML table. There is a demo you can check for both cases of scrolling.

As you've noticed, you have no selectivity to your update statement so it is updating your entire table. If you want to update specific rows (ie where the IDs match) you probably want to do a coordinated subquery.

However, since you are using Oracle, it might be easier to create a materialized view for your query table and let Oracle's transaction mechanism handle the details. MVs work exactly like a table for querying semantics, are quite easy to set up, and allow you to specify the refresh interval.

You can loop to create the String

List<String> list = new ArrayList<String>();
for (int i=0; i<jsonArray.length(); i++) {
    list.add( jsonArray.getString(i) );
}
String[] stringArray = list.toArray(new String[list.size()]);

It is actually very easy. But there is no way you can achieve it directly. You need to select a service side technology. You can use anything for this part. And this is what we call a RESTful API or a SOAP API. It depends on you what to select. I have done many project with both. I would prefer REST. So what will happen you will have some scripts in your web server, and you know the URLs. For example we need to make a user registration. And for this we have

mydomain.com/v1/userregister.php

Now from the android side you will send an HTTP request to the above URL. And the above URL will handle the User Registration and will give you a response that whether the operation succeed or not.

For a complete detailed explanation of the above concept. You can visit the following link.

**Android MySQL Tutorial to Perform CRUD Operation**

require 'net/http'
result = Net::HTTP.get(URI.parse('http://www.example.com/about.html'))
# or
result = Net::HTTP.get(URI.parse('http://www.example.com'), '/about.html')

Php Implementation of Chris's C# Code

Also from here, which explains the math of it very well.

This is basically a bunch of functions to convert to and from HSL (Hue Saturation Lightness)

Tested and working on PHP 5.6.15

TL;DR: The full code can be found here on Pastebin.

Hex to HSL

Input: Hex color in format: [#]0f4 or [#]00ff44 (pound sign optional)
Output: HSL in Degrees, Percent, Percent

/**
 * Input: hex color
 * Output: hsl(in ranges from 0-1)
 * 
 * Takes the hex, converts it to RGB, and sends
 * it to RGBToHsl.  Returns the output.
 * 
*/
function hexToHsl($hex) {
    $r = "";
    $g = "";
    $b = "";

    $hex = str_replace('#', '', $hex);

    if (strlen($hex) == 3) {
        $r = substr($hex, 0, 1);
        $r = $r . $r;
        $g = substr($hex, 1, 1);
        $g = $g . $g;
        $b = substr($hex, 2, 1);
        $b = $b . $b;
    } elseif (strlen($hex) == 6) {
        $r = substr($hex, 0, 2);
        $g = substr($hex, 2, 2);
        $b = substr($hex, 4, 2);
    } else {
        return false;
    }

    $r = hexdec($r);
    $g = hexdec($g);
    $b = hexdec($b);

    $hsl =  rgbToHsl($r,$g,$b);
    return $hsl;
}

RGB to HSL

Input: RGB in range 0-255 Output: HSL in Degrees, Percent, Percent.

/**
 * 
 *Credits:
 * https://stackoverflow.com/questions/4793729/rgb-to-hsl-and-back-calculation-problems
 * http://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl/
 *
 * Called by hexToHsl by default.
 *
 * Converts an RGB color value to HSL. Conversion formula
 * adapted from http://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl/.
 * Assumes r, g, and b are contained in the range [0 - 255] and
 * returns h, s, and l in the format Degrees, Percent, Percent.
 *
 * @param   Number  r       The red color value
 * @param   Number  g       The green color value
 * @param   Number  b       The blue color value
 * @return  Array           The HSL representation
*/
function rgbToHsl($r, $g, $b){  
    //For the calculation, rgb needs to be in the range from 0 to 1. To convert, divide by 255 (ff). 
    $r /= 255;
    $g /= 255;
    $b /= 255;

    $myMax = max($r, $g, $b);
    $myMin = min($r, $g, $b);

    $maxAdd = ($myMax + $myMin);
    $maxSub = ($myMax - $myMin);

    //luminence is (max + min)/2
    $h = 0;
    $s = 0;
    $l = ($maxAdd / 2.0);

    //if all the numbers are equal, there is no saturation (greyscale).
    if($myMin != $myMax){
        if ($l < 0.5) {
            $s = ($maxSub / $maxAdd);
        } else {
            $s = (2.0 - $myMax - $myMin); //note order of opperations - can't use $maxSub here
            $s = ($maxSub / $s);
        }

        //find hue
        switch($myMax){
            case $r: 
                $h = ($g - $b);
                $h = ($h / $maxSub);
                break;
            case $g: 
                $h = ($b - $r); 
                $h = ($h / $maxSub);
                $h = ($h + 2.0);
                break;
            case $b: 
                $h = ($r - $g);
                $h = ($h / $maxSub); 
                $h = ($h + 4.0);
                break;
        } 
    }

    $hsl = hslToDegPercPerc($h, $s, $l);
    return $hsl;
}

HSL (0-1 range) to Degrees, Percent, Percent format

For the math calculations, HSL is easier to deal with in the 0-1 range, but for human readability, it's easier in Degrees, Percent, Percent. This function takes HSL in the ranges 0-1, and returns HSL in Degrees, Percent, Percent.

/**
 * Input: HSL in ranges 0-1.
 * Output: HSL in format Deg, Perc, Perc.
 * 
 * Note: rgbToHsl calls this function by default.
 * 
 * Multiplies $h by 60, and $s and $l by 100.
 */
function hslToDegPercPerc($h, $s, $l) {
    //convert h to degrees
    $h *= 60;

    if ($h < 0) {
        $h += 360;
    }

    //convert s and l to percentage
    $s *= 100;
    $l *= 100;

    $hsl['h'] = $h;
    $hsl['s'] = $s;
    $hsl['l'] = $l;
    return $hsl;
}

HSL (Degrees, Percent, Percent format) to HSL in range 0-1

This function converts HSL in the format Degrees, Percent, Percent, to the ranges 0-1 for easier computing.

/**
 * Input: HSL in format Deg, Perc, Perc
 * Output: An array containing HSL in ranges 0-1
 * 
 * Divides $h by 60, and $s and $l by 100.
 * 
 * hslToRgb calls this by default.
*/
function degPercPercToHsl($h, $s, $l) { 
    //convert h, s, and l back to the 0-1 range

    //convert the hue's 360 degrees in a circle to 1
    $h /= 360;

    //convert the saturation and lightness to the 0-1 
    //range by multiplying by 100
    $s /= 100;
    $l /= 100;

    $hsl['h'] =  $h;
    $hsl['s'] = $s;
    $hsl['l'] = $l;

    return $hsl;
}

HSL to RGB

Input: HSL in the format Degrees, Percent, Percent Output: RGB in the format 255, 255, 255.

/**
 * Converts an HSL color value to RGB. Conversion formula
 * adapted from http://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl/.
 * Assumes h, s, and l are in the format Degrees,
 * Percent, Percent, and returns r, g, and b in 
 * the range [0 - 255].
 *
 * Called by hslToHex by default.
 *
 * Calls: 
 *   degPercPercToHsl
 *   hueToRgb
 *
 * @param   Number  h       The hue value
 * @param   Number  s       The saturation level
 * @param   Number  l       The luminence
 * @return  Array           The RGB representation
 */
function hslToRgb($h, $s, $l){
    $hsl = degPercPercToHsl($h, $s, $l);
    $h = $hsl['h'];
    $s = $hsl['s'];
    $l = $hsl['l'];

    //If there's no saturation, the color is a greyscale,
    //so all three RGB values can be set to the lightness.
    //(Hue doesn't matter, because it's grey, not color)
    if ($s == 0) {
        $r = $l * 255;
        $g = $l * 255;
        $b = $l * 255;
    }
    else {
        //calculate some temperary variables to make the 
        //calculation eaisier.
        if ($l < 0.5) {
            $temp2 = $l * (1 + $s);
        } else {
            $temp2 = ($l + $s) - ($s * $l);
        }
        $temp1 = 2 * $l - $temp2;

        //run the calculated vars through hueToRgb to
        //calculate the RGB value.  Note that for the Red
        //value, we add a third (120 degrees), to adjust 
        //the hue to the correct section of the circle for
        //red.  Simalarly, for blue, we subtract 1/3.
        $r = 255 * hueToRgb($temp1, $temp2, $h + (1 / 3));
        $g = 255 * hueToRgb($temp1, $temp2, $h);
        $b = 255 * hueToRgb($temp1, $temp2, $h - (1 / 3));
    }

    $rgb['r'] = $r;
    $rgb['g'] = $g;
    $rgb['b'] = $b;

    return $rgb;
}

Hue to RGB

This function is called by hslToRgb to convert the hue into the separate RGB values.

/**
 * Converts an HSL hue to it's RGB value.  
 *
 * Input: $temp1 and $temp2 - temperary vars based on 
 * whether the lumanence is less than 0.5, and 
 * calculated using the saturation and luminence
 * values.
 *  $hue - the hue (to be converted to an RGB 
 * value)  For red, add 1/3 to the hue, green 
 * leave it alone, and blue you subtract 1/3 
 * from the hue.
 *
 * Output: One RGB value.
 *
 * Thanks to Easy RGB for this function (Hue_2_RGB).
 * http://www.easyrgb.com/index.php?X=MATH&$h=19#text19
 *
*/
function hueToRgb($temp1, $temp2, $hue) {
    if ($hue < 0) { 
        $hue += 1;
    }
    if ($hue > 1) {
        $hue -= 1;
    }

    if ((6 * $hue) < 1 ) {
        return ($temp1 + ($temp2 - $temp1) * 6 * $hue);
    } elseif ((2 * $hue) < 1 ) {
        return $temp2;
    } elseif ((3 * $hue) < 2 ) {
        return ($temp1 + ($temp2 - $temp1) * ((2 / 3) - $hue) * 6);
    }
    return $temp1;
}

HSL to Hex

Input: HSL in format Degrees, Percent, Percent Output: Hex in format 00ff22 (no pound sign).

Converts to RGB, then converts separately to hex.

/**
 * Converts HSL to Hex by converting it to 
 * RGB, then converting that to hex.
 * 
 * string hslToHex($h, $s, $l[, $prependPound = true]
 * 
 * $h is the Degrees value of the Hue
 * $s is the Percentage value of the Saturation
 * $l is the Percentage value of the Lightness
 * $prependPound is a bool, whether you want a pound 
 *  sign prepended. (optional - default=true)
 *
 * Calls: 
 *   hslToRgb
 *
 * Output: Hex in the format: #00ff88 (with 
 * pound sign).  Rounded to the nearest whole
 * number.
*/
function hslToHex($h, $s, $l, $prependPound = true) {
    //convert hsl to rgb
    $rgb = hslToRgb($h,$s,$l);

    //convert rgb to hex
    $hexR = $rgb['r'];
    $hexG = $rgb['g'];
    $hexB = $rgb['b'];

    //round to the nearest whole number
    $hexR = round($hexR);
    $hexG = round($hexG);
    $hexB = round($hexB);

    //convert to hex
    $hexR = dechex($hexR);
    $hexG = dechex($hexG);
    $hexB = dechex($hexB);

    //check for a non-two string length
    //if it's 1, we can just prepend a
    //0, but if it is anything else non-2,
    //it must return false, as we don't 
    //know what format it is in.
    if (strlen($hexR) != 2) {
        if (strlen($hexR) == 1) {
            //probably in format #0f4, etc.
            $hexR = "0" . $hexR;
        } else {
            //unknown format
            return false;
        }
    }
    if (strlen($hexG) != 2) {
        if (strlen($hexG) == 1) {
            $hexG = "0" . $hexG;
        } else {
            return false;
        }
    }
    if (strlen($hexB) != 2) {
        if (strlen($hexB) == 1) {
            $hexB = "0" . $hexB;
        } else {
            return false;
        }
    }

    //if prependPound is set, will prepend a
    //# sign to the beginning of the hex code.
    //(default = true)
    $hex = "";
    if ($prependPound) {
        $hex = "#";
    }

    $hex = $hex . $hexR . $hexG . $hexB;

    return $hex;
}

This is probably obvious, but simplest:

i64 := int64(23)

It works, this is a problem with the tool used: normalized CSS by jsFiddle is causing the problem by hiding you the default of browsers...
See http://jsfiddle.net/XvdX9/5/

EDIT:
normalize.css stylesheet from jsFiddle adds the instruction border-collapse: collapse to all tables and it renders them completely differently in CSS2.1:

• The separated borders model
• The collapsing border model

Differences between the 2 models can be seen in this other fiddle: http://jsfiddle.net/XvdX9/11/ (with some transparencies on cells and an enormous border-radius on the top-left one, in order to see what happens on table vs its cells)

In the same CSS2.1 page about HTML tables, there are also explanations about what browsers should/could do with empty-cells in the separated borders model, the difference between border-style: none and border-style: hidden in the collapsing borders model, how width is calculated and which border should display if both table, row and cell elements define 3 different styles on the same border.

If you follow the documentation, from this page https://developers.google.com/identity/sign-in/web/sign-in#specify_your_apps_client_id

you'll see

<meta name="google-signin-client_id" content="YOUR_CLIENT_ID.apps.googleusercontent.com">

But it's wrong. It should be

<meta name="google-signin-client_id" content="YOUR_CLIENT_ID">

The issue is that the '.apps.googleusercontent.com' gets added anyway. If you do it like the documentation says, you get '.apps.googleusercontent.com' twice

First, the enum methods shouldn't be in all caps. They are methods just like other methods, with the same naming convention.

Second, what you are doing is not the best possible way to set up your enum. Instead of using an array of values for the values, you should use separate variables for each value. You can then implement the constructor like you would any other class.

Here's how you should do it with all the suggestions above:

public enum States {
    ...
    MASSACHUSETTS("Massachusetts",  "MA",   true),
    MICHIGAN     ("Michigan",       "MI",   false),
    ...; // all 50 of those

    private final String full;
    private final String abbr;
    private final boolean originalColony;

    private States(String full, String abbr, boolean originalColony) {
        this.full = full;
        this.abbr = abbr;
        this.originalColony = originalColony;
    }

    public String getFullName() {
        return full;
    }

    public String getAbbreviatedName() {
        return abbr;
    }

    public boolean isOriginalColony(){
        return originalColony;
    }
}

This has been the cleanest way to do it for me:-

ssh -n -f user@host "sh -c 'cd /whereever; nohup ./whatever > /dev/null 2>&1 &'"

The only thing running after this is the actual command on the remote machine

Create two classes, giving each a background color:

.flash{
 background: yellow;
}

.noflash{
 background: white;
}

Create a div with one of these classes:

<div class="noflash"></div>

The following function will toggle the classes and make it appear to be flashing:

var i = 0, howManyTimes = 7;
function flashingDiv() {
    $('.flash').toggleClass("noFlash")
    i++;
    if( i <= howManyTimes ){
        setTimeout( f, 200 );
    }
}
f();

Set the following two environment variables:

NVIDIA_VISIBLE_DEVICES=$gpu_id
CUDA_VISIBLE_DEVICES=0

where gpu_id is the ID of your selected GPU, as seen in the host system's nvidia-smi (a 0-based integer) that will be made available to the guest system (e.g. to the Docker container environment).

You can verify that a different card is selected for each value of gpu_id by inspecting Bus-Id parameter in nvidia-smi run in a terminal in the guest system).

More info

This method based on NVIDIA_VISIBLE_DEVICES exposes only a single card to the system (with local ID zero), hence we also hard-code the other variable, CUDA_VISIBLE_DEVICES to 0 (mainly to prevent it from defaulting to an empty string that would indicate no GPU).

Note that the environmental variable should be set before the guest system is started (so no chances of doing it in your Jupyter Notebook's terminal), for instance using docker run -e NVIDIA_VISIBLE_DEVICES=0 or env in Kubernetes or Openshift.

If you want GPU load-balancing, make gpu_id random at each guest system start.

If setting this with python, make sure you are using strings for all environment variables, including numerical ones.

You can verify that a different card is selected for each value of gpu_id by inspecting nvidia-smi's Bus-Id parameter (in a terminal run in the guest system).

The accepted solution based on CUDA_VISIBLE_DEVICES alone does not hide other cards (different from the pinned one), and thus causes access errors if you try to use them in your GPU-enabled python packages. With this solution, other cards are not visible to the guest system, but other users still can access them and share their computing power on an equal basis, just like with CPU's (verified).

This is also preferable to solutions using Kubernetes / Openshift controlers (resources.limits.nvidia.com/gpu), that would impose a lock on the allocated card, removing it from the pool of available resources (so the number of containers with GPU access could not exceed the number of physical cards).

This has been tested under CUDA 8.0, 9.0 and 10.1 in docker containers running Ubuntu 18.04 orchestrated by Openshift 3.11.

You can't do it by C#, but you can edit MSIL.

IL code of your Main method:

.method private hidebysig static void Main() cil managed
{
    .entrypoint
    .maxstack 1
    .locals init (
        [0] class MsilEditing.A a)
    L_0000: nop 
    L_0001: newobj instance void MsilEditing.B::.ctor()
    L_0006: stloc.0 
    L_0007: ldloc.0 
    L_0008: callvirt instance void MsilEditing.A::X()
    L_000d: nop 
    L_000e: ret 
}

You should change opcode in L_0008 from callvirt to call

L_0008: call instance void MsilEditing.A::X()

As a response to your question: "i want to reset all the data and keep last 30 days inside the table."

you can create an event. Check https://dev.mysql.com/doc/refman/5.7/en/event-scheduler.html

For example:

CREATE EVENT DeleteExpiredLog
ON SCHEDULE EVERY 1 DAY
DO
DELETE FROM log WHERE date < DATE_SUB(NOW(), INTERVAL 30 DAY);

Will run a daily cleanup in your table, keeping the last 30 days data available

Use height():

var result = $("#myDiv").height();
alert(result);

This will give you the unit-less computed height in pixels. "px" will be stripped from the result. I.e. if the height is 400px, the result will be 400, but the result will be in pixels.

If you want to do it without jQuery, you can use plain JavaScript:

var result = document.getElementById("myDiv").offsetHeight;

<a href="url" target="_blank"> <input type="button" value="fake button" /> </a>

If you run your code from a competent IDE, such as Code::Blocks, the IDE will manage the console it uses to run the code, keeping it open when the application closes. You don't want to add special code to keep the console open, because this will prevent it functioning correctly when you use it for real, outside of the IDE.

This is my code:

var x = prompt("enter number", "7");
var i = 0;
var binaryvar = " ";

function add(n) {
    if (n == 0) {
        binaryvar = "0" + binaryvar; 
    }
    else {
        binaryvar = "1" + binaryvar;
    }
}

function binary() {
    while (i < 1) {
        if (x == 1) {
            add(1);
            document.write(binaryvar);
            break;
        }
        else {
            if (x % 2 == 0) {
                x = x / 2;
                add(0);
            }
            else {
                x = (x - 1) / 2;
                add(1);
            }
        }
    }
}

binary();

I strongly prefer simply using Microsoft Visual Studio and writing a native Win32 app.

For a GUI as simple as the one that you describe, you could simply create a Dialog Box and use it as your main application window. The default application created by the Win32 Project wizard in Visual Studio actually pops a window, so you can replace that window with your Dialog Box and replace the WndProc with a similar (but simpler) DialogProc.

The question, then, is one of tools and cost. The Express Edition of Visual C++ does everything you want except actually create the Dialog Template resource. For this, you could either code it in the RC file by hand or in memory by hand. Related SO question: Windows API Dialogs without using resource files.

Or you could try one of the free resource editors that others have recommended.

Finally, the Visual Studio 2008 Standard Edition is a costlier option but gives you an integrated resource editor.

LPCWSTR lpcwName=std::wstring(strname.begin(), strname.end()).c_str()

test using APscheduler:

from apscheduler.schedulers.background import BackgroundScheduler
import datetime

dt = datetime.datetime
Future = dt.now() + datetime.timedelta(milliseconds=2550)  # 2.55 seconds from now testing start accuracy

def myjob1():
    print('started job 1: ' + str(dt.now())[:-3])  # timed to millisecond because thats where it varies
    time.sleep(5)
    print('job 1 half at: ' + str(dt.now())[:-3])
    time.sleep(5)
    print('job 1 done at: ' + str(dt.now())[:-3])
def myjob2():
    print('started job 2: ' + str(dt.now())[:-3])
    time.sleep(5)
    print('job 2 half at: ' + str(dt.now())[:-3])
    time.sleep(5)
    print('job 2 done at: ' + str(dt.now())[:-3])

print(' current time: ' + str(dt.now())[:-3])
print('  do job 1 at: ' + str(Future)[:-3] + ''' 
  do job 2 at: ''' + str(Future)[:-3])
sched.add_job(myjob1, 'date', run_date=Future)
sched.add_job(myjob2, 'date', run_date=Future)

i got these results. which proves they are running at the same time.

 current time: 2020-12-15 01:54:26.526
  do job 1 at: 2020-12-15 01:54:29.072  # i figure these both say .072 because its 1 line of print code
  do job 2 at: 2020-12-15 01:54:29.072
started job 2: 2020-12-15 01:54:29.075  # notice job 2 started before job 1, but code calls job 1 first.
started job 1: 2020-12-15 01:54:29.076  
job 2 half at: 2020-12-15 01:54:34.077  # halfway point on each job completed same time accurate to the millisecond
job 1 half at: 2020-12-15 01:54:34.077
job 1 done at: 2020-12-15 01:54:39.078  # job 1 finished first. making it .004 seconds faster.
job 2 done at: 2020-12-15 01:54:39.091  # job 2 was .002 seconds faster the second test

Try to call your proc in this way:

DECLARE @UserIDout int

EXEC YOURPROC @EmailAddress = 'sdfds', @NickName = 'sdfdsfs', ..., @UserId = @UserIDout OUTPUT

SELECT @UserIDout 

Display property 'inline-block' will place both headers next to each other. You can run this code snippet to see it

<h1 style="display: inline-block" >Text 1</h1>
<h1 style="display: inline-block" >Text 2</h1>

Try JadClipse.It will open all your .class file. Add library to your project and when you try to open any object declared in the lib file it will open just like your .java file.

In eclipse->help-> marketplace -> go to popular tab. There you can find plugins for the same.

Update: For those who are unable to find above plug-in, try downloading this: https://github.com/java-decompiler/jd-eclipse/releases/download/v1.0.0/jd-eclipse-site-1.0.0-RC2.zip

Then import it into Eclipse.

If you have issues importing above plug-in, refer: How to install plugin for Eclipse from .zip

If you're trying to find the first count multiples of m, something like this would work:

def multiples(m, count):
    for i in range(count):
        print(i*m)

Alternatively, you could do this with range:

def multiples(m, count):
    for i in range(0,count*m,m):
        print(i)

Note that both of these start the multiples at 0 - if you wanted to instead start at m, you'd need to offset it by that much:

range(m,(count+1)*m,m)

That's Oracle specific notation for an OUTER JOIN, because the ANSI-89 format (using a comma in the FROM clause to separate table references) didn't standardize OUTER joins.

The query would be re-written in ANSI-92 syntax as:

   SELECT ...
     FROM a
LEFT JOIN b ON b.id = a.id

This link is pretty good at explaining the difference between JOINs.

It should also be noted that even though the (+) works, Oracle recommends not using it:

Oracle recommends that you use the FROM clause OUTER JOIN syntax rather than the Oracle join operator. Outer join queries that use the Oracle join operator (+) are subject to the following rules and restrictions, which do not apply to the FROM clause OUTER JOIN syntax:

Pattern! The group names a (sub)pattern for later use in the regex. See the documentation here for details about how such groups are used.

You override $today in the if statement.

if($dd<10){$dd='0'+dd} if($mm<10){$mm='0'+$mm} $today = $dd+'/'+$mm+'/'+$yyyy;

It is then not a Date() object anymore - hence the error.

It's shorthand for tags.map { |tag| tag.name }.join(' ')

you would need a parking lot, that holds a multi-dimensional array (specified in the constructor) of a type "space". The parking lot can keep track of how many spaces are taken via calls to functions that fill and empty spaces.Space can hold an enumerated type that tells what kind of space it is. Space also has a method taken(). for the valet parking, just find the first space thats open and put the car there. You will also need a Car object to put in the space, that holds whether it is a handicapped, compact, or regular vehicle.

class ParkingLot
{
    Space[][] spaces;

    ParkingLot(wide, long); // constructor

    FindOpenSpace(TypeOfCar); // find first open space where type matches
}

enum TypeOfSpace = {compact, handicapped, regular };
enum TypeOfCar = {compact, handicapped, regular };

class Space
{
    TypeOfSpace type;
    bool empty;
    // gets and sets here
    // make sure car type
}

class car
{
    TypeOfCar type;
}

DECLARE
    @InputString NVARCHAR(MAX) = 'token1,token2,token3,token4,token5'
    , @delimiter varchar(10) = ','

DECLARE @xml AS XML = CAST(('<X>'+REPLACE(@InputString,@delimiter ,'</X><X>')+'</X>') AS XML)
SELECT C.value('.', 'varchar(10)') AS value
FROM @xml.nodes('X') as X(C)

Source of this response: http://sqlhint.com/sqlserver/how-to/best-split-function-tsql-delimited

On the basic question of why openssl is not found: Short answer:Some installation packages for openssl have a default openssl.cnf pre-included. Other packages do not. In the latter case you will include one from the link shown below; You can enter additional user-specifics --DN name,etc-- as needed.

From https://www.openssl.org/docs/manmaster/man5/config.html,I quote directly:

"OPENSSL LIBRARY CONFIGURATION

Applications can automatically configure certain aspects of OpenSSL using the master OpenSSL configuration file, or optionally an alternative configuration file. The openssl utility includes this functionality: any sub command uses the master OpenSSL configuration file unless an option is used in the sub command to use an alternative configuration file.

To enable library configuration the default section needs to contain an appropriate line which points to the main configuration section. The default name is openssl_conf which is used by the openssl utility. Other applications may use an alternative name such as myapplication_conf. All library configuration lines appear in the default section at the start of the configuration file.

The configuration section should consist of a set of name value pairs which contain specific module configuration information. The name represents the name of the configuration module. The meaning of the value is module specific: it may, for example, represent a further configuration section containing configuration module specific information. E.g.:"

So it appears one must self configure openssl.cnf according to your Distinguished Name (DN), along with other entries specific to your use.

Here is the template file from which you can generate openssl.cnf with your specific entries.

One Application actually has a demo installation that includes a demo .cnf file.

Additionally, if you need to programmatically access .cnf files, you can include appropriate headers --openssl/conf.h-- and parse your .cnf files using

CONF_modules_load_file(const char *filename, const char *appname,
                            unsigned long flags);

Here are docs for "CONF_modules_load_file";

Use a while loop with local status flag. Initialize the flag as false and set it to true when operation is successful e.g. below:

  boolean success  = false;
  while(!success){
     try{ 
         some_instruction(); 
         success = true;
     } catch (NearlyUnexpectedException e){
       fix_the_problem();
     }
  }

This will keep retrying until its successful.

If you want to retry only certain number of times then use a counter as well:

  boolean success  = false;
  int count = 0, MAX_TRIES = 10;
  while(!success && count++ < MAX_TRIES){
     try{ 
         some_instruction(); 
         success = true;
     } catch (NearlyUnexpectedException e){
       fix_the_problem();
     }
  }
  if(!success){
    //It wasn't successful after 10 retries
  }

This will try max 10 times if not successful until then an will exit if its successful before hand.

For Chrome:

1. Set your email manager to Gmail

1. Write mailto: in the address bar and press enter.

Easier:

1. Edit search engines:

1. Write mt and enter in address bar.

The amount of hacks you would need to go through to completely hide the fact your site is built by Meteor.js is absolutely ridiculous. You would have to strip essentially all core functionality and just serve straight up html, completely defeating the purpose of using the framework anyway.

That being said, I suggest looking at buildwith.com

You enter a url, and it reveals a ton of information about a site. If you only need to "fool" engines like this, there may be simple solutions.

The default session.save_path is set to "" which will evaluate to your system's temp directory. See this comment at https://bugs.php.net/bug.php?id=26757 stating:

The new default for save_path in upcoming releaess (sic) will be the empty string, which causes the temporary directory to be probed.

You can use sys_get_temp_dir to return the directory path used for temporary files

To find the current session save path, you can use

• session_save_path() — Get and/or set the current session save path

Refer to this answer to find out what the temp path is when this function returns an empty string.

LINQ definitely has its place in application-specific databases and in small businesses.

But in a large enterprise, where central databases serve as a hub of common data for many applications, we need abstraction. We need to centrally manage security and show access histories. We need to be able to do impact analysis: if I make a small change to the data model to serve a new business need, what queries need to be changed and what applications need to be re-tested? Views and Stored Procedures give me that. If LINQ can do all that, and make our programmers more productive, I'll welcome it -- does anyone have experience using it in this kind of environment?

From the TypeScript site: https://github.com/Microsoft/TypeScript/issues/6471

The recommended practice is to write the props type as {children?: any}

That worked for me. The child node can be many different things, so explicit typing can miss cases.

There's a longer discussion on the followup issue here: https://github.com/Microsoft/TypeScript/issues/13618, but the any approach still works.

This is how you create a zip file from a source file:

String srcFilename = "C:/myfile.txt";
String zipFile = "C:/myfile.zip";

try {
    byte[] buffer = new byte[1024];
    FileOutputStream fos = new FileOutputStream(zipFile);
    ZipOutputStream zos = new ZipOutputStream(fos);         
    File srcFile = new File(srcFilename);
    FileInputStream fis = new FileInputStream(srcFile);
    zos.putNextEntry(new ZipEntry(srcFile.getName()));          
    int length;
    while ((length = fis.read(buffer)) > 0) {
        zos.write(buffer, 0, length);
    }
    zos.closeEntry();
    fis.close();
    zos.close();            
}
catch (IOException ioe) {
    System.out.println("Error creating zip file" + ioe);
}

You can hide the modal and popup the window to review the carts in validateShipping() function itself.

function validateShipping(){
...
...
$('#product-options').modal('hide');
//pop the window to select items
}

if [[ $DISPLAY ]]; then 
  …
fi

For Debian/Ubuntu:

sudo apt-get install php7.0-mbstring

I've found two ways that work regardless of the date settings.

On my pc, date/t returns 2009-05-27

You can either access the registry and read the regional settings (HKEY_CURRENT_USER\Control Panel\International)

Or use a vbscript. This is the ugly batch file/vbscript hybrid I created some time ago....

@Echo Off
set rnd=%Random%
set randfilename=x%rnd%.vbs

::create temp vbscript file
Echo Dim DayofWeek(7) >  %temp%\%randfilename%
Echo DayofWeek(1)="Sun" >> %temp%\%randfilename%
Echo DayofWeek(2)="Mon" >> %temp%\%randfilename%
Echo DayofWeek(3)="Tue" >> %temp%\%randfilename%
Echo DayofWeek(4)="Wed" >> %temp%\%randfilename%
Echo DayofWeek(5)="Thu" >> %temp%\%randfilename%
Echo DayofWeek(6)="Fri" >> %temp%\%randfilename%
Echo DayofWeek(7)="Sat" >> %temp%\%randfilename%
Echo DayofWeek(0)=DayofWeek(Weekday(now)) >> %temp%\%randfilename%
Echo Mon=Left(MonthName(Month(now),1),3) >> %temp%\%randfilename%
Echo MonNumeric=right ( "00" ^& Month(now) , 2) >> %temp%\%randfilename%
Echo wscript.echo ( Year(Now) ^& " " ^& MonNumeric ^& " " ^& Mon ^& " "  _ >> %temp%\%randfilename%
Echo ^& right("00" ^& Day(now),2) ^& " "^& dayofweek(0) ^& " "^& _ >> %temp%\%randfilename%
Echo right("00" ^& Hour(now),2)) _ >> %temp%\%randfilename%
Echo ^&":"^& Right("00" ^& Minute(now),2) ^&":"^& Right("00" ^& Second(Now),2)  >> %temp%\%randfilename%

::set the output into vars
if "%1" == "" FOR /f "usebackq tokens=1,2,3,4,5,6" %%A in (`start /wait /b cscript //nologo %temp%\%randfilename%`) do Set Y2KYear=%%A& Set MonthNumeric=%%B& Set Month=%%C& Set Day=%%D& Set DayofWeek=%%E& Set Time=%%F
set year=%y2kyear:~2,2%

::cleanup
del %temp%\%randfilename%

It's not pretty, but it works.

You can do via Page directive.

For example:

<%@ page language="java" contentType="application/json; charset=UTF-8"
    pageEncoding="UTF-8"%>

• contentType="mimeType [ ;charset=characterSet ]" | "text/html;charset=ISO-8859-1"

The MIME type and character encoding the JSP file uses for the response it sends to the client. You can use any MIME type or character set that are valid for the JSP container. The default MIME type is text/html, and the default character set is ISO-8859-1.

Keep in mind that if you're doing a cross-domain Ajax call (by using JSONP) - you can't do it synchronously, the async flag will be ignored by jQuery.

$.ajax({
    url: "testserver.php",
    dataType: 'jsonp', // jsonp
    async: false //IGNORED!!
});

For JSONP-calls you could use:

1. Ajax-call to your own domain - and do the cross-domain call server-side
2. Change your code to work asynchronously
3. Use a "function sequencer" library like Frame.js (this answer)
4. Block the UI instead of blocking the execution (this answer) (my favourite way)

You've just published that private key, so now the whole world knows what it is. Hopefully that was just for testing.

EDIT: Others have noted that the openssl text header of the published key, -----BEGIN RSA PRIVATE KEY-----, indicates that it is PKCS#1. However, the actual Base64 contents of the key in question is PKCS#8. Evidently the OP copy and pasted the header and trailer of a PKCS#1 key onto the PKCS#8 key for some unknown reason. The sample code I've provided below works with PKCS#8 private keys.

Here is some code that will create the private key from that data. You'll have to replace the Base64 decoding with your IBM Base64 decoder.

public class RSAToy {

    private static final String BEGIN_RSA_PRIVATE_KEY = "-----BEGIN RSA PRIVATE KEY-----\n"
            + "MIIEuwIBADAN ...skipped the rest\n"
         // + ...   
         // + ... skipped the rest
         // + ...   
            + "-----END RSA PRIVATE KEY-----";

    public static void main(String[] args) throws Exception {

        // Remove the first and last lines

        String privKeyPEM = BEGIN_RSA_PRIVATE_KEY.replace("-----BEGIN RSA PRIVATE KEY-----\n", "");
        privKeyPEM = privKeyPEM.replace("-----END RSA PRIVATE KEY-----", "");
        System.out.println(privKeyPEM);

        // Base64 decode the data

        byte [] encoded = Base64.decode(privKeyPEM);

        // PKCS8 decode the encoded RSA private key

        PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(encoded);
        KeyFactory kf = KeyFactory.getInstance("RSA");
        PrivateKey privKey = kf.generatePrivate(keySpec);

        // Display the results

        System.out.println(privKey);
    }
}

According to this message on the GCC mailing list, you can use the file "nul" instead of /dev/null:

#include <stdio.h>

int main ()
{
    FILE* outfile = fopen ("/dev/null", "w");
    if (outfile == NULL)
    {
        fputs ("could not open '/dev/null'", stderr);
    }
    outfile = fopen ("nul", "w");
    if (outfile == NULL)
    {
        fputs ("could not open 'nul'", stderr);
    }

    return 0;
}

(Credits to Danny for this code; copy-pasted from his message.)

You can also use this special "nul" file through redirection.

Here is an example of iterating over a pd.DataFrame grouped by the column atable. For this sample, "create" statements for an SQL database are generated within the for loop:

import pandas as pd

df1 = pd.DataFrame({
    'atable':     ['Users', 'Users', 'Domains', 'Domains', 'Locks'],
    'column':     ['col_1', 'col_2', 'col_a', 'col_b', 'col'],
    'column_type':['varchar', 'varchar', 'int', 'varchar', 'varchar'],
    'is_null':    ['No', 'No', 'Yes', 'No', 'Yes'],
})

df1_grouped = df1.groupby('atable')

# iterate over each group
for group_name, df_group in df1_grouped:
    print('\nCREATE TABLE {}('.format(group_name))

    for row_index, row in df_group.iterrows():
        col = row['column']
        column_type = row['column_type']
        is_null = 'NOT NULL' if row['is_null'] == 'NO' else ''
        print('\t{} {} {},'.format(col, column_type, is_null))

    print(");")

How about :

^\d+\.\d{2}$

This matches one or more digits, a dot and 2 digits after the dot.

To match also comma as thousands delimiter :

^\d+(?:,\d{3})*\.\d{2}$

Use WinSCP for file transfer over SSH, putty is only for SSH commands.

There is an in-built stopword list in NLTK made up of 2,400 stopwords for 11 languages (Porter et al), see http://nltk.org/book/ch02.html

>>> from nltk import word_tokenize
>>> from nltk.corpus import stopwords
>>> stop = set(stopwords.words('english'))
>>> sentence = "this is a foo bar sentence"
>>> print([i for i in sentence.lower().split() if i not in stop])
['foo', 'bar', 'sentence']
>>> [i for i in word_tokenize(sentence.lower()) if i not in stop] 
['foo', 'bar', 'sentence']

I recommend looking at using tf-idf to remove stopwords, see Effects of Stemming on the term frequency?

Too late for the question but will post my answer anyway for anyone still needs it. I found an easier way to implement this, without using fragment id or fragment tag, since that's what I was seeking for.

First, I declared my Fragment in my ParentActivity class:

MyFragment myFragment;

Initialized my viewPager as usual, with the fragment I already added in the class above. Then, created a public method called scrollToTop in myFragment that does what I want to do from ParentActivity, let's say scroll my recyclerview to the top.

public void scrollToTop(){
    mMainRecyclerView.smoothScrollToPosition(0);
}

Now, in ParentActivity I called the method as below:

try{
   myFragment.scrollToTop();
}catch (Exception e){
   e.printStackTrace();
}

How about putting the checkbox into the label, making the label automatically "click sensitive" for the check box, and giving the checkbox a onchange event?

<label ..... ><input type="checkbox" onchange="toggleCheckbox(this)" .....> 

function toggleCheckbox(element)
 {
   element.checked = !element.checked;
 }

This will additionally catch users using a keyboard to toggle the check box, something onclick would not.

You can try server.connection-timeout=5000 in your application.properties. From the official documentation:

server.connection-timeout= # Time in milliseconds that connectors will wait for another HTTP request before closing the connection. When not set, the connector's container-specific default will be used. Use a value of -1 to indicate no (i.e. infinite) timeout.

On the other hand, you may want to handle timeouts on the client side using Circuit Breaker pattern as I have already described in my answer here: https://stackoverflow.com/a/44484579/2328781

I encountered the same problem. It occurred because composer was not able to install the dependencies specified in composer.json file. try running

composer install 

If this does not solve the problem, make sure the following php modules are installed php-mbstring php-dom

To install this extensions run the following in terminal

sudo apt-get install php-mbstring php-dom

once the installation is complete

try running the command in your project root folder

composer install 

Okay so someone is probably going to slap me for this answer, but I use jQuery to solve all my irritating problems and it turns out that I just used something today to fix a similar issue. Assuming you use jquery:

$("#content").sibling("#backgroundContainer").css("height",$("#content").outerHeight());

this is untested but I think you can see the concept here. Basically after it is loaded, you can get the height (outerHeight includes padding + borders, innerHeight for the content only). Hope that helps.

Here is how you bind it to the window resize event:

$(window).resize(function() {
  $("#content").sibling("#backgroundContainer").css("height",$("#content").outerHeight());
});

To play the same sample multiple times, wouldn't it be possible to do something like this:

e.pause(); // Perhaps optional
e.currentTime = 0;
e.play();

(e is the audio element)

Perhaps I completely misunderstood your problem, do you want the sound effect to play multiple times at the same time? Then this is completely wrong.

There is no need to use Babel at this moment (JS has become very powerful) when you can simply use the default JavaScript module exports. Check full tutorial

Message.js

module.exports = 'Hello world';

app.js

var msg = require('./Messages.js');

console.log(msg); // Hello World

A few things to consider:

• SQLite3 DB files grow roughly in multiples of the DB page size and do not shrink unless you use VACUUM. If you delete some rows, the freed space is marked internally and reused in later inserts. Therefore an insert will often not cause a change in the size of the backing DB file.

• You should not use traditional backup tools for SQLite (or any other database, for that matter), since they do not take into account the DB state information that is critical to ensure an uncorrupted database. Especially, copying the DB files in the middle of an insert transaction is a recipe for disaster...

• SQLite3 has an API specifically for backing-up or copying databases that are in use.

• And yes, it does seem that your DB files are corrupted. It could be a hardware/filesystem error. Or perhaps you copied them while they were in use? Or maybe restored a backup that was not properly taken?

$(document).ready(my_function);

Or

$(document).ready(function () {
  // Function code here.
});

Or the shorter but less readable variant:

$(my_function);

All of these will cause my_function to be called after the DOM loads.

See the ready event documentation for more details.

Binds a function to be executed whenever the DOM is ready to be traversed and manipulated.

Edit:

To simulate a click, use the click() method without arguments:

$('#button').click();

From the docs:

Triggers the click event of each matched element. Causes all of the functions that have been bound to that click event to be executed.

To put it all together, the following code simulates a click when the document finishes loading:

$(function () {
  $('#button').click();
});

I was looking for the right method to handle those radio buttons here is an example for a solution I found here:

<tr *ngFor="let entry of entries">
    <td>{{ entry.description }}</td>
    <td>
        <input type="radio" name="radiogroup" 
            [value]="entry.id" 
            (change)="onSelectionChange(entry)">
    </td>
</tr>

Notice the onSelectionChange that passes the current element to the method.

As per @kexik's suggestion using the UNIX time function as below :

  time_t result = time(NULL);
  NSLog([NSString stringWithFormat:@"The current Unix epoch time is %d",(int)result]);

.As per my experience - don't use timeIntervalSince1970 , it gives epoch timestamp - number of seconds you are behind GMT.

There used to be a bug with [[NSDate date]timeIntervalSince1970] , it used to add/subtract time based on the timezone of the phone but it seems to be resolved now.

All the metadata about the columns in Oracle Database is accessible using one of the following views.

user_tab_cols; -- For all tables owned by the user

all_tab_cols ; -- For all tables accessible to the user

dba_tab_cols; -- For all tables in the Database.

So, if you are looking for a column like ADD_TMS in SCOTT.EMP Table and add the column only if it does not exist, the PL/SQL Code would be along these lines..

DECLARE
  v_column_exists number := 0;  
BEGIN
  Select count(*) into v_column_exists
    from user_tab_cols
    where upper(column_name) = 'ADD_TMS'
      and upper(table_name) = 'EMP';
      --and owner = 'SCOTT --*might be required if you are using all/dba views

  if (v_column_exists = 0) then
      execute immediate 'alter table emp add (ADD_TMS date)';
  end if;
end;
/

If you are planning to run this as a script (not part of a procedure), the easiest way would be to include the alter command in the script and see the errors at the end of the script, assuming you have no Begin-End for the script..

If you have file1.sql

alter table t1 add col1 date;
alter table t1 add col2 date;
alter table t1 add col3 date;

And col2 is present,when the script is run, the other two columns would be added to the table and the log would show the error saying "col2" already exists, so you should be ok.

Prakash is correct that the declarations are the same, although a little more explanation of the pointer case might be in order.

"const int* p" is a pointer to an int that does not allow the int to be changed through that pointer. "int* const p" is a pointer to an int that cannot be changed to point to another int.

See https://isocpp.org/wiki/faq/const-correctness#const-ptr-vs-ptr-const.

new { style="width:50px", maxsize = 50 };

should be

new { style="width:50px", maxlength = 50 };

Try this.. vagrant ubuntu 14.04 This worked for me.

scp -r -P 2222 vagrant@localhost:/home .

You can do this in two ways:

1. ElementMatch - $elemMatch (as explained in above answers)

   db.users.find({ awards: { $elemMatch: {award:'Turing Award', year:1977} } })

2. Use $and with find

   db.getCollection('users').find({"$and":[{"awards.award":"Turing Award"},{"awards.year":1977}]})

  <asp:Button ID="btnSubmit" runat="server"  OnClientClick ="showDiv()"
   OnClick="btnImport_Click" Text="Upload" ></asp:Button>

The PostgreSQL manual indicates that this means the transaction is open (inside BEGIN) and idle. It's most likely a user connected using the monitor who is thinking or typing. I have plenty of those on my system, too.

If you're using Slony for replication, however, the Slony-I FAQ suggests idle in transaction may mean that the network connection was terminated abruptly. Check out the discussion in that FAQ for more details.

2 cents to add to THIS answer above, which is great BTW

After your glob (or similar) function has scanned/read the directory, add a conditional to check the response is not empty, or an invalid argument supplied for foreach() warning will be thrown. So...

if( ! empty( $files ) )
{
    foreach( $files as $file )
    {
        // do your stuff here...
    }
}

My full function (as an object method):

    private function recursiveRemoveDirectory( $directory )
    {
        if( ! is_dir( $directory ) )
        {
            throw new InvalidArgumentException( "$directory must be a directory" );
        }

        if( substr( $directory, strlen( $directory ) - 1, 1 ) != '/' )
        {
            $directory .= '/';
        }

        $files = glob( $directory . "*" );

        if( ! empty( $files ) )
        {
            foreach( $files as $file )
            {
                if( is_dir( $file ) )
                {
                    $this->recursiveRemoveDirectory( $file );
                }
                else
                {
                    unlink( $file );
                }
            }               
        }
        rmdir( $directory );

    } // END recursiveRemoveDirectory()

Actually this seems to be the correct way:

$('form').submit(function(e){

    //prevent default
    e.preventDefault();

    //do something here

    //continue submitting
    e.currentTarget.submit();

});

HashSet: Unordered actually. if u passing the parameter means

Set<Integer> set=new HashSet<Integer>();
for(int i=0;i<set.length;i++)
{
  SOP(set)`enter code here`
}

Out Put: May be 2,1,3 not predictable. next time another order.

LinkedHashSet() which produce FIFO Order.

A concise solution, which is particularly useful if you want to run the command repeatedly until it fails, and lets you see all output.

while ls -l; do
    sleep 5
done

Your problem is that you're not closing your HEREDOC correctly. The line containing END; must not contain any whitespace afterwards.

can simply use style inside element

<p style="text-transform: lowercase;">HI I AM NEW HERE</p>

You should do something like this to help you debug

$sql = "insert into blah values ('$myVar')";
echo $sql;

You will probably find that the single quote is escaped with a backslash in the working query. This might have been done automatically by PHP via the magic_quotes_gpc setting, or maybe you did it yourself in some other part of the code (addslashes and stripslashes might be functions to look for).

See Magic Quotes

Solution:

Add the below line in your application tag:

android:usesCleartextTraffic="true"

As shown below:

<application
    ....
    android:usesCleartextTraffic="true"
    ....>

UPDATE: If you have network security config such as: android:networkSecurityConfig="@xml/network_security_config"

No Need to set clear text traffic to true as shown above, instead use the below code:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        ....
        ....
    </domain-config>

    <base-config cleartextTrafficPermitted="false"/>
</network-security-config>  

Set the cleartextTrafficPermitted to true

Hope it helps.

Sometimes, this error pops up because of the kernel has reached its limit. Try to restart the kernel redo the necessary steps.

Either as most people answered: the file doesn't exist / you're not specifying the path correctly.

Or, you're simply writing the syntax wrong (which you can't know unless you know what it should be like, right?, especially when in the "help" itself, it's wrong).

For gnuplot 4.6.0 on windows 7, terminal type set to windows

Make sure you specify the file's whole path to avoid looking for it where it's not (default seems to be "documents")

Make sure you use this syntax:

plot 'path\path\desireddatafile.txt'

NOT

plot "< path\path\desireddatafile.txt>"

NOR

plot "path\path\desireddatafile.txt"

also make sure your file is in the right format, like for .txt file format ANSI, not Unicode and such.

the field=value syntax in queries is a shorthand for field__exact=value. That is to say that Django puts query operators on query fields in the identifiers. Django supports the following operators:

exact
iexact
contains
icontains
in
gt
gte
lt
lte
startswith
istartswith
endswith
iendswith
range

date
year
iso_year
month
day
week
week_day
iso_week_day
quarter
time
hour
minute
second

isnull
regex
iregex

I'm sure by combining these with the Q objects as Dave Vogt suggests and using filter() or exclude() as Jason Baker suggests you'll get exactly what you need for just about any possible query.

Note: I am not sure if this is correct but you can give it a try and see if this works.

There is a unslick method which de-initializes the carousel, so you might try using that before re-initializing it.

$.ajax({
    type: 'get',
    url: '/public/index',
    dataType: 'script',
    data: data_send,
    success: function() {
        $('.skills_section').unslick();  // destroy the previous instance
        slickCarousel();
      }
});

Hope this helps.

For a start, your answer variable should be of type char, not char*.

As for the if statement:

if (answer == ('Y' || 'y'))

This is first evaluating 'Y' || 'y' which, in Boolean logic (and for ASCII) is true since both of them are "true" (non-zero). In other words, you'd only get the if statement to fire if you'd somehow entered CTRLA (again, for ASCII, and where a true values equates to 1)^*a.

You could use the more correct:

if ((answer == 'Y') || (answer == 'y'))

but you really should be using:

if (toupper(answer) == 'Y')

since that's the more portable way to achieve the same end.

^*a You may be wondering why I'm putting in all sorts of conditionals for my statements. While the vast majority of C implementations use ASCII and certain known values, it's not necessarily mandated by the ISO standards. I know for a fact that at least one compiler still uses EBCDIC so I don't like making unwarranted assumptions.

Try to split the characters into multiple chunks like the query below and try:

Insert into table (clob_column) values ( to_clob( 'chunk 1' ) || to_clob( 'chunk 2' ) );

It worked for me.

This is what I used for my countdown clock:

</SCRIPT>
<center class="auto-style19" style="height: 31px">
<Font face="blacksmith" size="large"><strong>
<SCRIPT LANGUAGE="JavaScript">
var header = "You have <I><font color=red>" 
+ getDaysUntilICD10() + "</font></I>&nbsp; "
header += "days until ICD-10 starts!"
document.write(header)
</SCRIPT>

The HTML inside of my script worked, though I could not explain why.

I would recommend using a Double not a double as your type then you check against null.

Anaconda comes with the conda package manager which is designed to handle these kinds of upgrades. Start by updating conda itself to get the most recent package lists:

conda update conda

And then install the version of scikit-learn you want

conda install scikit-learn=0.17

All necessary dependencies will be upgraded as well. If you have trouble with conda on Windows, there are some relevant FAQ here: http://docs.continuum.io/anaconda/faq

By default, Windows associates .js files with the Windows Script Host, Microsoft's stand-alone JS runtime engine. If you type script.js at a command prompt (or double-click a .js file in Explorer), the script is executed by wscript.exe.

This may be solving a local problem with a global setting, but you could associate .js files with node.exe instead, so that typing script.js at a command prompt or double-clicking/dragging items onto scripts will launch them with Node.

Of course, if—like me—you've associated .js files with an editor so that double-clicking them opens up your favorite text editor, this suggestion won't do much good. You could also add a right-click menu entry of "Execute with Node" to .js files, although this alternative doesn't solve your command-line needs.

The simplest solution is probably to just use a batch file – you don't have to have a copy of Node in the folder your script resides in. Just reference the Node executable absolutely:

"C:\Program Files (x86)\nodejs\node.exe" app.js %*

Another alternative is this very simple C# app which will start Node using its own filename + .js as the script to run, and pass along any command line arguments.

class Program
{
    static void Main(string[] args)
    {
        var info = System.Diagnostics.Process.GetCurrentProcess();
        var proc = new System.Diagnostics.ProcessStartInfo(@"C:\Program Files (x86)\nodejs\node.exe", "\"" + info.ProcessName + ".js\" " + String.Join(" ", args));
        proc.UseShellExecute = false;
        System.Diagnostics.Process.Start(proc);
    }
}

So if you name the resulting EXE "app.exe", you can type app arg1 ... and Node will be started with the command line "app.js" arg1 .... Note the C# bootstrapper app will immediately exit, leaving Node in charge of the console window.

Since this is probably of relatively wide interest, I went ahead and made this available on GitHub, including the compiled exe if getting in to vans with strangers is your thing.

Just put

export HOME=/blah/whatever

at the point in the script where you want the change to happen. Since each process has its own set of environment variables, this definition will automatically cease to have any significance when the script terminates (and with it the instance of bash that has a changed environment).

I am also new to MVC and I received the same error and found that it is not passing proper routeValues in the Index view or whatever view is present to view the all data.

It was as below

<td>
            @Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) |
            @Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |
            @Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })
        </td>

I changed it to the as show below and started to work properly.

<td>
            @Html.ActionLink("Edit", "Edit", new { EmployeeID=item.EmployeeID }) |
            @Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |
            @Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })
        </td>

Basically this error can also come because of improper navigation also.

Disable or Enable any element with the disabled property.

// Disable 
$("#myAnchor").prop( "disabled", true );

// Enable
$( "#myAnchor" ).prop( "disabled", false );

Replace

volume = (4 / 3) Math.PI * Math.pow(radius, 3);

With:

volume = (4 * Math.PI * Math.pow(radius, 3)) / 3;

ProcessBuilder is the Java 5/6 way to run external processes.

To answer the initial question (after your edit), you need to unset($images[1][$key]);

Now some more infos how PHP works: You can safely unset elements of the array in foreach loop, and it doesn't matter if you have & or not for the array item. See this code:

$a=[1,2,3,4,5];
foreach($a as $key=>$val)
{
   if ($key==3) unset($a[$key]);
}
print_r($a);

This prints:

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [4] => 5
)

So as you can see, if you unset correct thing within the foreach loop, everything works fine.

If you are using LAMP stack, then add this into your .htaccess file in your web root folder. No need to add it to every PHP file.

<IfModule mod_headers.c>
    Header add X-UA-Compatible "IE=Edge"
</IfModule>

I ran the code below, once with foo taking the shared_ptr by const& and again with foo taking the shared_ptr by value.

void foo(const std::shared_ptr<int>& p)
{
    static int x = 0;
    *p = ++x;
}

int main()
{
    auto p = std::make_shared<int>();
    auto start = clock();
    for (int i = 0; i < 10000000; ++i)
    {
        foo(p);
    }    
    std::cout << "Took " << clock() - start << " ms" << std::endl;
}

Using VS2015, x86 release build, on my intel core 2 quad (2.4GHz) processor

const shared_ptr&     - 10ms  
shared_ptr            - 281ms 

The copy by value version was an order of magnitude slower.
If you are calling a function synchronously from the current thread, prefer the const& version.

There are few named constructors in GridView for different scenarios,

Constructors

1. GridView
2. GridView.builder
3. GridView.count
4. GridView.custom
5. GridView.extent

Below is a example of GridView constructor:

import 'package:flutter/material.dart';

void main() => runApp(
  MaterialApp(
    home: ExampleGrid(),
  ),
);

class ExampleGrid extends StatelessWidget {
  List<String> images = [
    "https://uae.microless.com/cdn/no_image.jpg",
    "https://images-na.ssl-images-amazon.com/images/I/81aF3Ob-2KL._UX679_.jpg",
    "https://www.boostmobile.com/content/dam/boostmobile/en/products/phones/apple/iphone-7/silver/device-front.png.transform/pdpCarousel/image.jpg",
    "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSgUgs8_kmuhScsx-J01d8fA1mhlCR5-1jyvMYxqCB8h3LCqcgl9Q",
    "https://ae01.alicdn.com/kf/HTB11tA5aiAKL1JjSZFoq6ygCFXaw/Unlocked-Samsung-GALAXY-S2-I9100-Mobile-Phone-Android-Wi-Fi-GPS-8-0MP-camera-Core-4.jpg_640x640.jpg",
    "https://media.ed.edmunds-media.com/gmc/sierra-3500hd/2018/td/2018_gmc_sierra-3500hd_f34_td_411183_1600.jpg",
    "https://hips.hearstapps.com/amv-prod-cad-assets.s3.amazonaws.com/images/16q1/665019/2016-chevrolet-silverado-2500hd-high-country-diesel-test-review-car-and-driver-photo-665520-s-original.jpg",
    "https://www.galeanasvandykedodge.net/assets/stock/ColorMatched_01/White/640/cc_2018DOV170002_01_640/cc_2018DOV170002_01_640_PSC.jpg",
    "https://media.onthemarket.com/properties/6191869/797156548/composite.jpg",
    "https://media.onthemarket.com/properties/6191840/797152761/composite.jpg",
  ];
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: GridView(
        physics: BouncingScrollPhysics(), // if you want IOS bouncing effect, otherwise remove this line
        gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2),//change the number as you want
        children: images.map((url) {
          return Card(child: Image.network(url));
        }).toList(),
      ),
    );
  }
}

If you want your GridView items to be dynamic according to the content, you can few lines to do that but the simplest way to use StaggeredGridView package. I have provided an answer with example here.

Below is an example for a GridView.count:

import 'package:flutter/material.dart';

void main() => runApp(
      MaterialApp(
        home: ExampleGrid(),
      ),
    );

class ExampleGrid extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: GridView.count(
        crossAxisCount: 4,
        children: List.generate(40, (index) {
          return Card(
            child: Image.network("https://robohash.org/$index"),
          ); //robohash.org api provide you different images for any number you are giving
        }),
      ),
    );
  }
}

Screenshot for above snippet:

Example for a SliverGridView:

import 'package:flutter/material.dart';

void main() => runApp(
      MaterialApp(
        home: ExampleGrid(),
      ),
    );

class ExampleGrid extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: CustomScrollView(
        primary: false,
        slivers: <Widget>[
          SliverPadding(
            padding: const EdgeInsets.all(20.0),
            sliver: SliverGrid.count(
              crossAxisSpacing: 10.0,
              crossAxisCount: 2,
              children: List.generate(20, (index) {
                return Card(child: Image.network("https://robohash.org/$index"));
              }),
            ),
          ),
        ],
      )
    );
  }
}

I believe Node.js is best suited for real-time applications: online games, collaboration tools, chat rooms, or anything where what one user (or robot? or sensor?) does with the application needs to be seen by other users immediately, without a page refresh.

I should also mention that Socket.IO in combination with Node.js will reduce your real-time latency even further than what is possible with long polling. Socket.IO will fall back to long polling as a worst case scenario, and instead use web sockets or even Flash if they are available.

But I should also mention that just about any situation where the code might block due to threads can be better addressed with Node.js. Or any situation where you need the application to be event-driven.

Also, Ryan Dahl said in a talk that I once attended that the Node.js benchmarks closely rival Nginx for regular old HTTP requests. So if we build with Node.js, we can serve our normal resources quite effectively, and when we need the event-driven stuff, it's ready to handle it.

Plus it's all JavaScript all the time. Lingua Franca on the whole stack.

If you're looking for a way of applying the "static" keyword to a class, like you can in C# for example

static classes are just the compiler hand-holding you and stopping you from writing any instance methods/variables.

If you just write a normal class without any instance methods/variables, it's the same thing, and this is what you'd do in C++

An sql sum of column_name's unique values and sorted by the frequency:

SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name ORDER BY 2 DESC;

I could do that following the steps:

1. Create a folder __mocks__/ (as pointed by @Januartha comment)
2. Implement an axios.js mock file
3. Use my implemented module on test

The mock will happen automatically

Example of the mock module:

module.exports = {
    get: jest.fn((url) => {
        if (url === '/something') {
            return Promise.resolve({
                data: 'data'
            });
        }
    }),
    post: jest.fn((url) => {
        if (url === '/something') {
            return Promise.resolve({
                data: 'data'
            });
        }
        if (url === '/something2') {
            return Promise.resolve({
                data: 'data2'
            });
        }
    }),
    create: jest.fn(function () {
        return this;
    })
};

Use below XML configuration to configure logs into two or more files:

<log4net>
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="logs\log.txt" />         
      <appendToFile value="true" /> 
      <rollingStyle value="Size" />
      <maxSizeRollBackups value="10" />
      <maximumFileSize value="10MB" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">           
        <conversionPattern value="%date [%thread] %level %logger - %message%newline" />
      </layout>
    </appender>
     <appender name="RollingLogFileAppender2" type="log4net.Appender.RollingFileAppender">
      <file value="logs\log1.txt" />         
      <appendToFile value="true" /> 
      <rollingStyle value="Size" />
      <maxSizeRollBackups value="10" />
      <maximumFileSize value="10MB" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout">        
        <conversionPattern value="%date [%thread] %level %logger - %message%newline" />
      </layout>
    </appender>
    <root>
      <level value="All" />
      <appender-ref ref="RollingLogFileAppender" />
    </root>
     <logger additivity="false" name="RollingLogFileAppender2">
    <level value="All"/>
    <appender-ref ref="RollingLogFileAppender2" />
    </logger>
  </log4net>

Above XML configuration logs into two different files. To get specific instance of logger programmatically:

ILog logger = log4net.LogManager.GetLogger ("RollingLogFileAppender2");

You can append two or more appender elements inside log4net root element for logging into multiples files.

More info about above XML configuration structure or which appender is best for your application, read details from below links:

https://logging.apache.org/log4net/release/manual/configuration.html https://logging.apache.org/log4net/release/sdk/index.html

Cache the query in a global variable when it is not available.

Create a webpage to force the cache to be reloaded when you update it.

Add a call to the reloading page into your deployment scripts.

Rather than re-explaining, I will link to this rather extensive & highly rated question/answer:

Vertically align text to top within a UILabel

The short answer is no, Apple didn't make this easy, but it is possible by changing the frame size.

As some of you already said, the easiest way is to update Node.js through the Node.js package manager, npm. If you are a Linux (Debian-based in my case) user I would suggest to add these lines to your .bashrc file (in home directory):

function nodejsupdate() {
    ARGC=$#
    version=latest
    if [ $ARGC != 0 ]; then
        version=$1
    fi
    sudo npm cache clean -f
    sudo npm install -g n
    sudo n $version
}

Restart your terminal after saving and write nodejsupdate to update to the latest version of Node.js or nodejsupdate v6.0.0 (for example) to update to a specific version of Node.js.

BONUS: Update npm (add these lines to .bashrc)

function npmupdate() {
    sudo npm i npm -g
}

After restarting the terminal write npmupdate to update your node package manager to the latest version.

Now you can update Node.js and npm through your terminal (easier).

    var ListByOwner = list.GroupBy(l => l.Owner)
                          .Select(lg => 
                                new { 
                                    Owner = lg.Key, 
                                    Boxes = lg.Count(),
                                    TotalWeight = lg.Sum(w => w.Weight), 
                                    TotalVolume = lg.Sum(w => w.Volume) 
                                });

I agree with Jason.

I got caught out doing this:

#import <sys/time.h>  // to use gettimeofday() function
#import <time.h>      // to use time() function

For GNU gcc, it kept complaining that time() function was not defined.

So then I changed #import to #include and all went ok.

Reason:

You #import <sys/time.h>:
    <sys/time.h> includes only a part of <time.h> by using #defines

You #import <time.h>:
    No go. Even though only part of <time.h> was already included, as
    far as #import is concerned, that file is now already completely included.

Bottom line:

C/C++ headers traditionally includes parts of other include files.
So for C/C++ headers, use #include.
For objc/objc++ headers, use #import.

I believe the 2GB limit is for 32-bit Java. I thought v1.6 was always 64 bit, but try forcing 64 bit mode just to see: add the -d64 option.

You can create functions in react components. It is actually regular ES6 class which inherits from React.Component. Just be careful and bind it to the correct context in onClick event:

export default class Archive extends React.Component { 

    saySomething(something) {
        console.log(something);
    }

    handleClick(e) {
        this.saySomething("element clicked");
    }

    componentDidMount() {
        this.saySomething("component did mount");
    }

    render() {
        return <button onClick={this.handleClick.bind(this)} value="Click me" />;
    }
}

Take a look at the following system stored procedures, which you can run in SQLServer Management Studio (SSMS):

• sp_who
• sp_lock

Also, in SSMS, you can view locks and processes in different ways:

Different versions of SSMS put the activity monitor in different places. For example, SSMS 2008 and 2012 have it in the context menu when you right-click on a server node.

Android Q broke most of these for me. Here's a new one that seems to be working (at least on Android Q).

adb shell "dumpsys activity activities | grep mResumedActivity"

Output looks like:

mResumedActivity: ActivityRecord{7f6df99 u0 com.sample.app/.feature.SampleActivity t92}

Edit: Works on Android R for me as well

On Python 3 numpy.genfromtxt expects a bytes stream. Use the following:

numpy.genfromtxt(io.BytesIO(x.encode()))

If your local jdk version is 11 or 9, 10, and your project's java source/target version is 1.8, and you are using org.projectlombok:lombok package, then you can try to update its version to 1.16.22 or 1.18.12, like this:

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.22</version>
        </dependency>

It just solved my issue.

If you want to build Java EE applications, it's best to use Eclipse IDE for Java EE. It has editors from HTML to JSP/JSF, Javascript. It's rich for webapps development, and provide plugins and tools to develop Java EE applications easily (all bundled).

Eclipse Classic is basically the full featured Eclipse without the Java EE part.

If you are using the static serve view in development, you have to have DEBUG = True :

Warning

This will only work if DEBUG is True.

That's because this view is grossly inefficient and probably insecure. This is only intended for local development, and should never be used in production.

Docs: serving static files in developent

EDIT: You could add some urls just to test your 404 and 500 templates, just use the generic view direct_to_template in your urls.

from django.views.generic.simple import direct_to_template

urlpatterns = patterns('',
    ('^404testing/$', direct_to_template, {'template': '404.html'})
)

You are missing PIL (Python Image Library and Imaging package). To install PIL I used

 pip install pillow

For my machine running Mac OSX 10.6.8, I downloaded Imaging package and installed it from source. http://effbot.org/downloads/Imaging-1.1.6.tar.gz and cd into Download directory. Then run these:

    $ gunzip Imaging-1.1.6.tar.gz
    $ tar xvf Imaging-1.1.6.tar
    $ cd Imaging-1.1.6
    $ python setup.py install

Or if you have PIP installed in your Mac

 pip install http://effbot.org/downloads/Imaging-1.1.6.tar.gz

then you can use:

from PIL import Image

in your python code.

Basically your query returns more than one result set. In API Docs uniqueResult() method says that Convenience method to return a single instance that matches the query, or null if the query returns no results

uniqueResult() method yield only single resultset

Try Wrap widget to wrap text as text grows:

Example:

Wrap(
  direction: Axis.vertical, //Vertical || Horizontal
  children: <Widget>[
    Text(
      'Your Text',
      style: TextStyle(fontSize: 30),
    ),
    Text(
      'Your Text',
      style: TextStyle(fontSize: 30),
    ),
  ],
),

• Under Server Administration on the Home window select the server instance you want to restore database to (Create New Server Instance if doing it first time).
• Click on Manage Import/Export
• Click on Data Import/Restore on the left side of the screen.
• Select Import from Self-Contained File radio button (right side of screen)
• Select the path of .sql
• Click Start Import button at the right bottom corner of window.

Hope it helps.

---Edited answer---

Regarding selection of the schema. MySQL Workbench (5.2.47 CE Rev1039) does not yet support exporting to the user defined schema. It will create only the schema for which you exported the .sql... In 5.2.47 we see "New" target schema. But it does not work. I use MySQL Administrator (the old pre-Oracle MySQL Admin beauty) for my work for backup/restore. You can still download it from Googled trustable sources (search MySQL Administrator 1.2.17).

Here is a function that will convert a string to an array, even if there is only one item in the list (no separator character):

function listToAray(fullString, separator) {
  var fullArray = [];

  if (fullString !== undefined) {
    if (fullString.indexOf(separator) == -1) {
      fullAray.push(fullString);
    } else {
      fullArray = fullString.split(separator);
    }
  }

  return fullArray;
}

Use it like this:

var myString = 'alpha,bravo,charlie,delta';
var myArray = listToArray(myString, ',');
myArray[2]; // charlie

var yourString = 'echo';
var yourArray = listToArray(yourString, ',');
yourArray[0]; // echo

I created this function because split throws out an error if there isn't any separator character in the string (only one item).

urllib2.urlopen does an HTTP GET (or POST if you supply a data argument), not an HTTP HEAD (if it did the latter, you couldn't do readlines or other accesses to the page body, of course).

UPDATE t1
INNER JOIN t2 ON t2.t1_id = t1.id
INNER JOIN t3 ON t2.t3_id = t3.id
SET t1.a = 'something',
    t2.b = 42,
    t3.c = t2.c
WHERE t1.a = 'blah';

To see what this is going to update, you can convert this into a select statement, e.g.:

SELECT t2.t1_id, t2.t3_id, t1.a, t2.b, t2.c AS t2_c, t3.c AS t3_c
FROM t1
INNER JOIN t2 ON t2.t1_id = t1.id
INNER JOIN t3 ON t2.t3_id = t3.id
WHERE t1.a = 'blah';

An example using the same tables as the other answer:

SELECT Books.BookID, Orders.OrderID,
    Orders.Quantity AS CurrentQuantity,
    Orders.Quantity + 2 AS NewQuantity,
    Books.InStock AS CurrentStock,
    Books.InStock - 2 AS NewStock
FROM Books
INNER JOIN Orders ON Books.BookID = Orders.BookID
WHERE Orders.OrderID = 1002;

UPDATE Books
INNER JOIN Orders ON Books.BookID = Orders.BookID
SET Orders.Quantity = Orders.Quantity + 2,
    Books.InStock = Books.InStock - 2
WHERE Orders.OrderID = 1002;

EDIT:

Just for fun, let's add something a bit more interesting.

Let's say you have a table of books and a table of authors. Your books have an author_id. But when the database was originally created, no foreign key constraints were set up and later a bug in the front-end code caused some books to be added with invalid author_ids. As a DBA you don't want to have to go through all of these books to check what the author_id should be, so the decision is made that the data capturers will fix the books to point to the right authors. But there are too many books to go through each one and let's say you know that the ones that have an author_id that corresponds with an actual author are correct. It's just the ones that have nonexistent author_ids that are invalid. There is already an interface for the users to update the book details and the developers don't want to change that just for this problem. But the existing interface does an INNER JOIN authors, so all of the books with invalid authors are excluded.

What you can do is this: Insert a fake author record like "Unknown author". Then update the author_id of all the bad records to point to the Unknown author. Then the data capturers can search for all books with the author set to "Unknown author", look up the correct author and fix them.

How do you update all of the bad records to point to the Unknown author? Like this (assuming the Unknown author's author_id is 99999):

UPDATE books
LEFT OUTER JOIN authors ON books.author_id = authors.id
SET books.author_id = 99999
WHERE authors.id IS NULL;

The above will also update books that have a NULL author_id to the Unknown author. If you don't want that, of course you can add AND books.author_id IS NOT NULL.

Had the same issue with "The project type is not supported by this installation" for web projects in VS 2010 Premium.

devenv /ResetSkipPkgs

and GUIDs magic did not help.

Same projects were working fine on a neighbor box with VS 2010 Premium.

As it turned out the only difference was that my VS installation was missing the following installed products (can be found in VS About dialog):

• Microsoft Office Developer Tools
• Microsoft Visual Studio 2010 SharePoint Developer Tools

Add/Remove programs -> VS 2010 -> Customize -> Check the above products - and the problem was solved.

document.querySelector('#from1').onsubmit = function(e){

 swal({
    title: "Are you sure?",
    text: "You will not be able to recover this imaginary file!",
    type: "warning",
    showCancelButton: true,
    confirmButtonColor: '#DD6B55',
    confirmButtonText: 'Yes, I am sure!',
    cancelButtonText: "No, cancel it!",
    closeOnConfirm: false,
    closeOnCancel: false
 },
 function(isConfirm){

   if (isConfirm){
     swal("Shortlisted!", "Candidates are successfully shortlisted!", "success");

    } else {
      swal("Cancelled", "Your imaginary file is safe :)", "error");
         e.preventDefault();
    }
 });
};

Issue:

When you do are doing:

p => {foo: "bar"}

JavaScript interpreter thinks you are opening a multi-statement code block, and in that block, you have to explicitly mention a return statement.

Solution:

If your arrow function expression has a single statement, then you can use the following syntax:

p => ({foo: "bar", attr2: "some value", "attr3": "syntax choices"})

But if you want to have multiple statements then you can use the following syntax:

p => {return {foo: "bar", attr2: "some value", "attr3": "syntax choices"}}

In above example, first set of curly braces opens a multi-statement code block, and the second set of curly braces is for dynamic objects. In multi-statement code block of arrow function, you have to explicitly use return statements

For more details, check Mozilla Docs for JS Arrow Function Expressions

Try pgrep. Its output format is much simpler and therefore easier to parse.

I know this is a bit late but what I did to our application is this. Hope this will help someone tho. But it works for me:

SELECT * FROM `landmarks` WHERE `landmark_name` OR `landmark_description` OR `landmark_address` LIKE '%keyword'
OR `landmark_name` OR `landmark_description` OR `landmark_address` LIKE 'keyword%' 
OR `landmark_name` OR `landmark_description` OR `landmark_address` LIKE '%keyword%'

I use DejaVu Sans Mono at Size 16.

UPDATE : I have switched to Envy Code R for coding and Anonymous Pro for terminal

Don't know for sure, but it sounds like it is still submitting. I quick solution would be to change your (guessing at your code here):

<input type="submit" value="Submit" onclick="checkform()">

to a button:

<input type="button" value="Submit" onclick="checkform()">

That way your form still gets submitted (from the else part of your checkform()) and it shouldn't be reloading the page.

There are other, perhaps better, ways of handling it but this works in the mean time.

To set permanent PuTTY session parameters do:

1. Create sessions in PuTTY. Name it as "MyskinPROD"

2. Configure the path for this session to point to "C:\dir\&Y&M&D&T_&H_putty.log".

3. Create a Windows "Shortcut" to C:...\Putty.exe.

4. Open "Shortcut" Properties and append "Target" line with parameters as shown below:

   "C:\Program Files (x86)\UTL\putty.exe" -ssh -load MyskinPROD user@ServerIP -pw password
   

Now, your PuTTY shortcut will bring in the "MyskinPROD" configuration every time you open the shortcut.

Check the screenshots and details on how I did it in my environment:

http://www.evernote.com/shard/s184/sh/93ebf08f-fde2-4dad-bccf-961c98fb614b/983d2ff8f2d1e6184318825d68b0b829

FWhat tdrury said:

change your plugin configuration into this:

<plugin>
    <groupId>org.jacoco</groupId>
    <artifactId>jacoco-maven-plugin</artifactId>
    <version>0.6.3.201306030806</version>
    <executions>
      <!-- prepare agent for measuring integration tests -->
      <execution>
        <id>prepare-integration-tests</id>
        <phase>pre-integration-test</phase>
        <goals>
          <goal>prepare-agent</goal>
        </goals>
        <configuration>
          <destFile>${basedir}/target/coverage-reports/jacoco-unit.exec</destFile>
        </configuration>
      </execution>
      <execution>
        <id>jacoco-site</id>
        <phase>post-integration-test</phase>
        <goals>
          <goal>report</goal>
        </goals>
        <configuration>
          <dataFile>${basedir}/target/coverage-reports/jacoco-unit.exec</dataFile>
        </configuration>
      </execution>
    </executions>
  </plugin>

Edit: Just noticed one important thing, destFile and dataFile seems case sensitive so it's supposed to be destFile, not destfile.

As stated above, another way to get an IPv6 textual representation validating parser is to use programming. Here is one that is fully compliant with RFC-4291 and RFC-5952. I've written this code in ANSI C (works with GCC, passed tests on Linux - works with clang, passed tests on FreeBSD). Thus, it does only rely on the ANSI C standard library, so it can be compiled everywhere (I've used it for IPv6 parsing inside a kernel module with FreeBSD).

// IPv6 textual representation validating parser fully compliant with RFC-4291 and RFC-5952
// BSD-licensed / Copyright 2015-2017 Alexandre Fenyo

#include <string.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>

typedef enum { false, true } bool;

static const char hexdigits[] = "0123456789abcdef";
static int digit2int(const char digit) {
  return strchr(hexdigits, digit) - hexdigits;
}

// This IPv6 address parser handles any valid textual representation according to RFC-4291 and RFC-5952.
// Other representations will return -1.
//
// note that str input parameter has been modified when the function call returns
//
// parse_ipv6(char *str, struct in6_addr *retaddr)
// parse textual representation of IPv6 addresses
// str:     input arg
// retaddr: output arg
int parse_ipv6(char *str, struct in6_addr *retaddr) {
  bool compressed_field_found = false;
  unsigned char *_retaddr = (unsigned char *) retaddr;
  char *_str = str;
  char *delim;

  bzero((void *) retaddr, sizeof(struct in6_addr));
  if (!strlen(str) || strchr(str, ':') == NULL || (str[0] == ':' && str[1] != ':') ||
      (strlen(str) >= 2 && str[strlen(str) - 1] == ':' && str[strlen(str) - 2] != ':')) return -1;

  // convert transitional to standard textual representation
  if (strchr(str, '.')) {
    int ipv4bytes[4];
    char *curp = strrchr(str, ':');
    if (curp == NULL) return -1;
    char *_curp = ++curp;
    int i;
    for (i = 0; i < 4; i++) {
      char *nextsep = strchr(_curp, '.');
      if (_curp[0] == '0' || (i < 3 && nextsep == NULL) || (i == 3 && nextsep != NULL)) return -1;
      if (nextsep != NULL) *nextsep = 0;
      int j;
      for (j = 0; j < strlen(_curp); j++) if (_curp[j] < '0' || _curp[j] > '9') return -1;
      if (strlen(_curp) > 3) return -1;
      const long val = strtol(_curp, NULL, 10);
      if (val < 0 || val > 255) return -1;
      ipv4bytes[i] = val;
      _curp = nextsep + 1;
    }
    sprintf(curp, "%x%02x:%x%02x", ipv4bytes[0], ipv4bytes[1], ipv4bytes[2], ipv4bytes[3]);
  }

  // parse standard textual representation
  do {
    if ((delim = strchr(_str, ':')) == _str || (delim == NULL && !strlen(_str))) {
      if (delim == str) _str++;
      else if (delim == NULL) return 0;
      else {
        if (compressed_field_found == true) return -1;
        if (delim == str + strlen(str) - 1 && _retaddr != (unsigned char *) (retaddr + 1)) return 0;
        compressed_field_found = true;
        _str++;
        int cnt = 0;
        char *__str;
        for (__str = _str; *__str; ) if (*(__str++) == ':') cnt++;
        unsigned char *__retaddr = - 2 * ++cnt + (unsigned char *) (retaddr + 1);
        if (__retaddr <= _retaddr) return -1;
        _retaddr = __retaddr;
      }
    } else {
      char hexnum[4] = "0000";
      if (delim == NULL) delim = str + strlen(str);
      if (delim - _str > 4) return -1;
      int i;
      for (i = 0; i < delim - _str; i++)
        if (!isxdigit(_str[i])) return -1;
        else hexnum[4 - (delim - _str) + i] = tolower(_str[i]);
      _str = delim + 1;
      *(_retaddr++) = (digit2int(hexnum[0]) << 4) + digit2int(hexnum[1]);
      *(_retaddr++) = (digit2int(hexnum[2]) << 4) + digit2int(hexnum[3]);
    }
  } while (_str < str + strlen(str));
  return 0;
}

You will certainly be able to do that using WITH clause, or use analytic functions available in Oracle SQL.

With some effort you'd be able to get anything out of them in terms of cycles as in ordinary procedural languages. Both approaches are pretty powerful compared to ordinary SQL.

http://www.dba-oracle.com/t_with_clause.htm

http://www.orafaq.com/node/55

It requires some effort though. Don't be afraid to post a concrete example.

Using simple pseudo table DUAL helps too.

If what you're looking for is simply to blur the image edges you can simply use the box-shadow with an inset.

Working example: http://jsfiddle.net/d9Q5H/1/

HTML:

<div class="image-blurred-edge"></div>

CSS

.image-blurred-edge {
    background-image: url('http://lorempixel.com/200/200/city/9');
    width: 200px;
    height: 200px;
    /* you need to match the shadow color to your background or image border for the desired effect*/
    box-shadow: 0 0 8px 8px white inset;
}

def exit(self):
    self.frame.destroy()
exit_btn=Button(self.frame,text='Exit',command=self.exit,activebackground='grey',activeforeground='#AB78F1',bg='#58F0AB',highlightcolor='red',padx='10px',pady='3px')
exit_btn.place(relx=0.45,rely=0.35)

This worked for me to destroy my Tkinter frame on clicking the exit button.

Based on Bert F's answer I would like to explain my understanding.

Lets say we have 3 classes as

public class Fruit{}

public class Melon extends Fruit{}

public class WaterMelon extends Melon{}

Here We have

List<? extends Fruit> fruitExtendedList = …

//Says that I can be a list of any object as long as this object extends Fruit.

Ok now lets try to get some value from fruitExtendedList

Fruit fruit = fruitExtendedList.get(position)

//This is valid as it can only return Fruit or its subclass.

Again lets try

Melon melon = fruitExtendedList.get(position)

//This is not valid because fruitExtendedList can be a list of Fruit only, it may not be 
//list of Melon or WaterMelon and in java we cannot assign sub class object to 
//super class object reference without explicitly casting it.

Same is the case for

WaterMelon waterMelon = fruitExtendedList.get(position)

Now lets try to set some object in fruitExtendedList

Adding fruit object

fruitExtendedList.add(new Fruit())

//This in not valid because as we know fruitExtendedList can be a list of any 
//object as long as this object extends Fruit. So what if it was the list of  
//WaterMelon or Melon you cannot add Fruit to the list of WaterMelon or Melon.

Adding Melon object

fruitExtendedList.add(new Melon())

//This would be valid if fruitExtendedList was the list of Fruit but it may 
//not be, as it can also be the list of WaterMelon object. So, we see an invalid 
//condition already.

Finally let try to add WaterMelon object

fruitExtendedList.add(new WaterMelon())

//Ok, we got it now we can finally write to fruitExtendedList as WaterMelon 
//can be added to the list of Fruit or Melon as any superclass reference can point 
//to its subclass object.

But wait what if someone decides to make a new type of Lemon lets say for arguments sake SaltyLemon as

public class SaltyLemon extends Lemon{}

Now fruitExtendedList can be list of Fruit, Melon, WaterMelon or SaltyLemon.

So, our statement

fruitExtendedList.add(new WaterMelon())

is not valid either.

Basically we can say that we cannot write anything to a fruitExtendedList.

This sums up List<? extends Fruit>

Now lets see

List<? super Melon> melonSuperList= …

//Says that I can be a list of anything as long as its object has super class of Melon.

Now lets try to get some value from melonSuperList

Fruit fruit = melonSuperList.get(position)

//This is not valid as melonSuperList can be a list of Object as in java all 
//the object extends from Object class. So, Object can be super class of Melon and 
//melonSuperList can be a list of Object type

Similarly Melon, WaterMelon or any other object cannot be read.

But note that we can read Object type instances

Object myObject = melonSuperList.get(position)

//This is valid because Object cannot have any super class and above statement 
//can return only Fruit, Melon, WaterMelon or Object they all can be referenced by
//Object type reference.

Now, lets try to set some value from melonSuperList.

Adding Object type object

melonSuperList.add(new Object())

//This is not valid as melonSuperList can be a list of Fruit or Melon.
//Note that Melon itself can be considered as super class of Melon.

Adding Fruit type object

melonSuperList.add(new Fruit())

//This is also not valid as melonSuperList can be list of Melon

Adding Melon type object

melonSuperList.add(new Melon())

//This is valid because melonSuperList can be list of Object, Fruit or Melon and in 
//this entire list we can add Melon type object.

Adding WaterMelon type object

melonSuperList.add(new WaterMelon())

//This is also valid because of same reason as adding Melon

To sum it up we can add Melon or its subclass in melonSuperList and read only Object type object.

I use a generic query I call "dump" (why? I don't know) that looks like this:

SET NEWPAGE NONE
SET PAGESIZE 0
SET SPACE 0
SET LINESIZE 16000
SET ECHO OFF
SET FEEDBACK OFF
SET VERIFY OFF
SET HEADING OFF
SET TERMOUT OFF
SET TRIMOUT ON
SET TRIMSPOOL ON
SET COLSEP |

spool &1..txt

@@&1

spool off
exit

I then call SQL*Plus passing the actual SQL script I want to run as an argument:

sqlplus -S user/password@database @dump.sql my_real_query.sql

The result is written to a file

my_real_query.sql.txt

.

You can also use function truncate

$truncate -s0 yourfile

if permission denied, use sudo

$sudo truncate -s0 yourfile

Help/Manual: man truncate

tested on ubuntu Linux

Return string from function

#include <stdio.h>

const char* greet() {
  return "Hello";
}

int main(void) {
  printf("%s", greet());
}

Try cleaning the local .m2/repository/ folder manually using rm -rf and then re build the project. Worked for me after trying every possible other alternative(reinstalling eclipse, pointing to the correct maven version in eclipse, proxy settings etc)

I had quite a bit of trouble as I didn't want to FIX the overlay in place as I wanted the info inside the overlay to be scrollable over the text. I used:

<html style="height=100%">
   <body style="position:relative">
      <div id="my-awesome-overlay" 
           style="position:absolute; 
                  height:100%; 
                  width:100%; 
                  display: block">
           [epic content here]
      </div>
   </body>
</html>

Of course the div in the middle needs some content and probably a transparent grey background but I'm sure you get the gist!

Connect to your server via SSH

then connect to your mysql console

and

USE user_base
REPAIR TABLE TABLE;

-OR-

If there are a lot of broken tables in current database:

mysqlcheck -uUSER -pPASSWORD  --repair --extended user_base

If there are a lot of broken tables in a lot of databases:

mysqlcheck -uUSER -pPASSWORD  --repair --extended -A

If you're using Node.js:

> var ObjectId = require('mongodb').ObjectId; 
> var id = req.params.gonderi_id;       
> var o_id = new ObjectId(id);
> db.test.find({_id:o_id})

Edit: corrected to new ObjectId(id), not new ObjectID(id)

Try StickyList from Cactoos:

List<String> list = new StickyList<>(iterable);

Disclaimer: I'm one of the developers.

I think this code may work after orientation change has take effect

Display getOrient = getWindowManager().getDefaultDisplay();

int orientation = getOrient.getOrientation();

override Activity.onConfigurationChanged(Configuration newConfig) function and use newConfig,orientation if you want to get notified about the new orientation before calling setContentView.

window.location.href = 'file://///fileserver/upload/Old_Upload/05_06_2019/THRESHOLD/BBH/Look/chrs/Delia';

Nothing Worked for me.

I solved this problem in Eclipse 4.3 settings - only by adding JDK libraries to JRE's libraries.

Go windows -> settings -> Java -> installed JREs -> select JDK and click Edit -> click Add External JARs and add tools.jar (placed in JDK/lib)

If the library is static, then at link time the code is linked in with your executable. This makes your executable larger (than if you went the dynamic route).

If the library is dynamic then at link time references to the required methods are built in to your executable. This means that you have to ship your executable and the dynamic library. You also ought to consider whether shared access to the code in the library is safe, preferred load address among other stuff.

If you can live with the static library, go with the static library.

A similar error can occur, when you didn't give a valid client certificate and token that your server understands:

Error:

Http failure response for (unknown url): 0 Unknown Error

Example code:

import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Observable, throwError } from 'rxjs';
import { catchError, map } from 'rxjs/operators';

class MyCls1 {

  constructor(private http: HttpClient) {
  }

  public myFunc(): void {

    let http: HttpClient;

    http.get(
      'https://www.example.com/mypage',
      {
        headers:
          new HttpHeaders(
            {
              'Content-Type': 'application/json',
              'X-Requested-With': 'XMLHttpRequest',
              'MyClientCert': '',        // This is empty
              'MyToken': ''              // This is empty
            }
          )
      }
    ).pipe( map(res => res), catchError(err => throwError(err)) );
  }

}

Note that both MyClientCert & MyToken are empty strings, hence the error.
MyClientCert & MyToken can be any name that your server understands.

One way of doing this is to do add junit.jar to your $CLASSPATH as an external dependency.

So to do that, go to project structure, and then add JUnit as one of the libraries as shown in the gif.

In the 'Choose Modules' prompt choose only the modules that you'd need JUnit for.

It can happen that using redis-cli, you connect to your remote redis-server, and then the command:

KEYS *

is not showing anything, or better, it shows:
(empty list or set)

If you are absolutely sure that the Redis server you use is the one you have the data, then maybe your redis-cli is not connecting to the Redis correct database instance.

As it is mentioned in the Redis docs, new connections connect as default to the db 0.

In my case KEYS command was not retrieving results because my database was 1. In order to select the db you want, use SELECT.
The db is identified by an integer.

SELECT 1
KEYS *

I post this info because none of the previous answers was solving my issue.

"\n".charCodeAt(0);

You have to modify your regex in the following way

pat = re.compile("^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$")

that's because . is a wildcard that stands for "every character"

Let’s illustrate in Java:

class TrasportationDevice
{
   String name;
   String getName() { ... }
   void setName(String n) { ... }

   double speed;
   double getSpeed() { ... }
   void setSpeed(double d) { ... }

   Engine engine;
   Engine getEngine() { ... }
   void setEngine(Engine e) { ... }

   void startEngine() { ... }
}

class Car extends TransportationDevice
{
   @Override
   void startEngine() { ... }
}

There is no problem here, right? A car is definitely a transportation device, and here we can see that it overrides the startEngine() method of its superclass.

Let’s add another transportation device:

class Bicycle extends TransportationDevice
{
   @Override
   void startEngine() /*problem!*/
}

Everything isn’t going as planned now! Yes, a bicycle is a transportation device, however, it does not have an engine and hence, the method startEngine() cannot be implemented.

These are the kinds of problems that violation of Liskov Substitution Principle leads to, and they can most usually be recognized by a method that does nothing, or even can’t be implemented.

The solution to these problems is a correct inheritance hierarchy, and in our case we would solve the problem by differentiating classes of transportation devices with and without engines. Even though a bicycle is a transportation device, it doesn’t have an engine. In this example our definition of transportation device is wrong. It should not have an engine.

We can refactor our TransportationDevice class as follows:

class TrasportationDevice
{
   String name;
   String getName() { ... }
   void setName(String n) { ... }

   double speed;
   double getSpeed() { ... }
   void setSpeed(double d) { ... }
}

Now we can extend TransportationDevice for non-motorized devices.

class DevicesWithoutEngines extends TransportationDevice
{  
   void startMoving() { ... }
}

And extend TransportationDevice for motorized devices. Here is is more appropriate to add the Engine object.

class DevicesWithEngines extends TransportationDevice
{  
   Engine engine;
   Engine getEngine() { ... }
   void setEngine(Engine e) { ... }

   void startEngine() { ... }
}

Thus our Car class becomes more specialized, while adhering to the Liskov Substitution Principle.

class Car extends DevicesWithEngines
{
   @Override
   void startEngine() { ... }
}

And our Bicycle class is also in compliance with the Liskov Substitution Principle.

class Bicycle extends DevicesWithoutEngines
{
   @Override
   void startMoving() { ... }
}

If lists always have the same structure, as in the example, then a simpler solution is

mapply(c, first, second, SIMPLIFY=FALSE)

Unless you have some kind of really weird problem, keep it. The number of IPv6 sites is very small, but there are some and it will let you get to them even if you're at an IPv4 only location.

If it is causing you a problem, it's best to fix it. I've seen a number of people recommending removing it to solve problems. However, they're not actually solving the root cause of the issue. In all the cases I've seen, removing Teredo just happens to cause a side-effect that fixes their problem... :)

Although I am very late to answer this, please have a look at the code.

let floatValue = 3.267848;
let decimalDigits = floatValue.toString().split('.')[1];
let decimalPlaces = decimalDigits.length;
let decimalDivider = Math.pow(10, decimalPlaces);
let fractionValue = decimalDigits/decimalDivider;
let integerValue = floatValue - fractionValue;

console.log("Float value: "+floatValue);
console.log("Integer value: "+integerValue);
console.log("Fraction value: "+fractionValue)

For SQL Server:

ALTER TABLE TableName
    DROP COLUMN Column1, Column2;

The syntax is

DROP { [ CONSTRAINT ] constraint_name | COLUMN column } [ ,...n ] 

For MySQL:

ALTER TABLE TableName
    DROP COLUMN Column1,
    DROP COLUMN Column2;

or like this¹:

ALTER TABLE TableName
    DROP Column1,
    DROP Column2;

¹ The word COLUMN is optional and can be omitted, except for RENAME COLUMN (to distinguish a column-renaming operation from the RENAME table-renaming operation). More info here.

Two problems here:

1. seven_date is a number, not a date. 29 + 7 = 36
2. getMonth returns a zero based index of the month. So adding one just gets you the current month number.

Try this: Open IIS Manager, change application pool's advance setting, change Enable 32 bit Application to false.

Open up the table designer in SQL Server Management Studio (right-click table and select 'Design')

Holding down the Ctrl key highlight two or more columns in the left hand table margin

Hit the little 'Key' on the standard menu bar at the top

You're done..

:-)

There are many ways to do just this, provided you are not concerned about reliance on the original decimal data.

The first and perhaps most popular method would be the Largest Remainder Method

Which is basically:

1. Rounding everything down
2. Getting the difference in sum and 100
3. Distributing the difference by adding 1 to items in decreasing order of their decimal parts

In your case, it would go like this:

13.626332%
47.989636%
 9.596008%
28.788024%

If you take the integer parts, you get

13
47
 9
28

which adds up to 97, and you want to add three more. Now, you look at the decimal parts, which are

.626332%
.989636%
.596008%
.788024%

and take the largest ones until the total reaches 100. So you would get:

14
48
 9
29

Alternatively, you can simply choose to show one decimal place instead of integer values. So the numbers would be 48.3 and 23.9 etc. This would drop the variance from 100 by a lot.

Both if (one.length() > 0) {} and if (!"".equals(one)) {} will check against an empty foo parameter, and an empty parameter is what you'd get if the the form is submitted with no value in the foo text field.

If there's any chance you can use the Expression Language to handle the parameter, you could access it with empty param.foo in an expression.

<c:if test='${not empty param.foo}'>
    This page code gets rendered.
</c:if>

There are several reasons as to why this wouldn't work.

It is possible that matplotlib is not properly installed. have you tried running:

conda install matplotlib

If that doesn't work, look at your %PATH% environment variable, does it contain your libraries and python paths?

Similar problem on github anaconda

String in java is immutable. So whenever a string is created, it will remain in the memory until it is garbage collected. So anyone who has access to the memory can read the value of the string.
If the value of the string is modified then it will end up creating a new string. So both the original value and the modified value stay in the memory until it is garbage collected.

With the character array, the contents of the array can be modified or erased once the purpose of the password is served. The original contents of the array will not be found in memory after it is modified and even before the garbage collection kicks in.

Because of the security concern it is better to store password as a character array.

toCharArray followed by Arrays.sort followed by a String constructor call:

import java.util.Arrays;

public class Test
{
    public static void main(String[] args)
    {
        String original = "edcba";
        char[] chars = original.toCharArray();
        Arrays.sort(chars);
        String sorted = new String(chars);
        System.out.println(sorted);
    }
}

EDIT: As tackline points out, this will fail if the string contains surrogate pairs or indeed composite characters (accent + e as separate chars) etc. At that point it gets a lot harder... hopefully you don't need this :) In addition, this is just ordering by ordinal, without taking capitalisation, accents or anything else into account.

I doubt it. The problem is that 100 is never 100 if it's a float, it's normally 99.9999999999 or 100.0000001 or something like that.

If you do want to format it that way, you have to define an epsilon, that is, a maximum distance from an integer number, and use integer formatting if the difference is smaller, and a float otherwise.

Something like this would do the trick:

public String formatDecimal(float number) {
  float epsilon = 0.004f; // 4 tenths of a cent
  if (Math.abs(Math.round(number) - number) < epsilon) {
     return String.format("%10.0f", number); // sdb
  } else {
     return String.format("%10.2f", number); // dj_segfault
  }
}