I figured out the issue. The linked server was created correctly. However, after the server was upgraded and switched the server name in sys.servers still had the old server name.

I had to drop the old server name and add the new server name to sys.servers on the new server

sp_dropserver 'Server_A'
GO
sp_addserver  'Server',local
GO

Aside from other great responses, I just had to give NTFS permissions to the Oracle installation folder. (I gave read access)

If linked server name is IP address following code is true:

select * from [1.2.3.4,1433\MSSQLSERVER].test.dbo.Table1

It's just, note [] around IP address section.

select text
from syscomments
where text like '%your text here%'

Following Query is work best.

Try this Query:

SELECT * FROM OPENQUERY([LINKED_SERVER_NAME], 'SELECT * FROM [DATABASE_NAME].[SCHEMA].[TABLE_NAME]')

It Very helps to link MySQL to MS SQL

You need sp_addlinkedserver()

http://msdn.microsoft.com/en-us/library/ms190479.aspx

Example:

exec sp_addlinkedserver @server = 'test'

then

select * from [server].[database].[schema].[table]

In your example:

select * from [test].[testdb].[dbo].[table]

As others have already mentioned, running PHP as a daemon is quite easy, and can be done using a single line of command. But the actual problem is keeping it running and managing it. I've had the same problem quite some time ago and although there are plenty of solutions already available, most of them have lots of dependencies or are difficult to use and not suitable for basic usages. I wrote a shell script that can manage a any process/application including PHP cli scripts. It can be set as a cronjob to start the application and will contain the application and manage it. If it's executed again, for example via the same cronjob, it check if the app is running or not, if it does then simply exits and let its previous instance continue managing the application.

I uploaded it to github, feel free to use it : https://github.com/sinasalek/EasyDeamonizer

EasyDeamonizer

Simply watches over your application (start, restart, log, monitor, etc). a generic script to make sure that your appliation remains running properly. Intentionally it uses process name instread of pid/lock file to prevent all its side effects and keep the script as simple and as stirghforward as possible, so it always works even when EasyDaemonizer itself is restarted. Features

• Starts the application and optionally a customized delay for each start
• Makes sure that only one instance is running
• Monitors CPU usage and restarts the app automatically when it reaches the defined threshold
• Setting EasyDeamonizer to run via cron to run it again if it's halted for any reason
• Logs its activity

You need a reference to the class that contains the method you want to call. Let's say we have two classes, A and B. B has a method you want to call from A. Class A would look like this:

public class A
{
    B b; // A reference to B

    b = new B(); // Creating object of class B

    b.doSomething();  // Calling a method contained in class B from class A
}

B, which contains the doSomething() method would look like this:

public class B
{
    public void doSomething()
    {
        System.out.println("Look, I'm doing something in class B!");
    }
}

this works for me.

<VirtualHost *:443>
    ServerName www.example.com
    # ... SSL configuration goes here
    Redirect "https://www.example.com/" "http://www.example.com/"
</VirtualHost>

<VirtualHost *:80>
    ServerName www.example.com
    # ... 
</VirtualHost>

be sure to listen to both ports 80 and 443.

These is a little thing to point out.
Using the function pg_get_viewdef or pg_views or information_schema.views you will always get a rewrited version of your original DDL.
The rewited version may or not be the same as your originl DDL script.

If the Rule Manager rewrite your view definition your original DLL will be lost and you will able to read the only the rewrited version of your view definition.
Not all views are rewrited but if you use sub-select or joins probably your views will be rewrited.

Date in 24 hrs format

Output:14/02/2020 19:56:49 PM

 Date date = new Date();
 DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss aa");
 dateFormat.setTimeZone(TimeZone.getTimeZone("Europe/London"));
 System.out.println("date is: "+dateFormat.format(date));

Date in 12 hrs format

Output:14/02/2020 07:57:11 PM

 Date date = new Date();`enter code here`
 DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss aa");
 dateFormat.setTimeZone(TimeZone.getTimeZone("Europe/London"));
 System.out.println("date is: "+dateFormat.format(date));

Code from the above answer by Dutchie432

.FixedHeightContainer {
    float:right;
    height: 250px;
    width:250px; 
    padding:3px; 
    background:#f00;
}

.Content {
    height:224px;
    overflow:auto;
    background:#fff;
}

remove class hideByDefault. Div will remain hidden itself till value of myvalue is false.

My two cents: Discriminative approaches highlight differences Generative approaches do not focus on differences; they try to build a model that is representative of the class. There is an overlap between the two. Ideally both approaches should be used: one will be useful to find similarities and the other will be useful to find dis-similarities.

You may use bash functions in commands/pipelines as you would otherwise use regular programs. The functions are also available to subshells and transitively, Command Substitution:

VAR=$(scan)

Is the straighforward way to achieve the result you want in most cases. I will outline special cases below.

Preserving trailing Newlines:

One of the (usually helpful) side effects of Command Substitution is that it will strip any number of trailing newlines. If one wishes to preserve trailing newlines, one can append a dummy character to output of the subshell, and subsequently strip it with parameter expansion.

function scan2 () {
    local nl=$'\x0a';  # that's just \n
    echo "output${nl}${nl}" # 2 in the string + 1 by echo
}

# append a character to the total output.
# and strip it with %% parameter expansion.
VAR=$(scan2; echo "x"); VAR="${VAR%%x}"

echo "${VAR}---"

prints (3 newlines kept):

output


---

Use an output parameter: avoiding the subshell (and preserving newlines)

If what the function tries to achieve is to "return" a string into a variable , with bash v4.3 and up, one can use what's called a nameref. Namerefs allows a function to take the name of one or more variables output parameters. You can assign things to a nameref variable, and it is as if you changed the variable it 'points to/references'.

function scan3() {
    local -n outvar=$1    # -n makes it a nameref.
    local nl=$'\x0a'
    outvar="output${nl}${nl}"  # two total. quotes preserve newlines
}

VAR="some prior value which will get overwritten"

# you pass the name of the variable. VAR will be modified.
scan3 VAR

# newlines are also preserved.
echo "${VAR}==="

prints:

output

===

This form has a few advantages. Namely, it allows your function to modify the environment of the caller without using global variables everywhere.

Note: using namerefs can improve the performance of your program greatly if your functions rely heavily on bash builtins, because it avoids the creation of a subshell that is thrown away just after. This generally makes more sense for small functions reused often, e.g. functions ending in echo "$returnstring"

This is relevant. https://stackoverflow.com/a/38997681/5556676

The reply by Phil Sacre was correct however the session shouldn't be used just for the hell of it. You should only use this for values which really need to live for the lifetime of the session, such as a user login. It's common to see people overuse the session and run into more issues, especially when dealing with a collection or when users return to a page they previously visited only to find they have values still remaining from a previous visit. A smart program minimizes the scope of variables as much as possible, a bad one uses session too much.

I have encountered this problem and finally solved it today, so I write down what I have learned and I hope it is helpful for someone who is new to Android's ViewPager and update as I do. I'm using FragmentStatePagerAdapter in API level 17 and currently have just 2 fragments. I think there must be something not correct, please correct me, thanks.

1. Serialized data has to be loaded into memory. This can be done using a CursorLoader/AsyncTask/Thread. Whether it's automatically loaded depends on your code. If you are using a CursorLoader, it's auto-loaded since there is a registered data observer.

2. After you call viewpager.setAdapter(pageradapter), the adapter's getCount() is constantly called to build fragments. So if data is being loaded, getCount() can return 0, thus you don't need to create dummy fragments for no data shown.

3. After the data is loaded, the adapter will not build fragments automatically since getCount() is still 0, so we can set the actually loaded data number to be returned by getCount(), then call the adapter's notifyDataSetChanged(). ViewPager begin to create fragments (just the first 2 fragments) by data in memory. It's done before notifyDataSetChanged() is returned. Then the ViewPager has the right fragments you need.

4. If the data in the database and memory are both updated (write through), or just data in memory is updated (write back), or only data in the database is updated. In the last two cases if data is not automatically loaded from the database to memory (as mentioned above). The ViewPager and pager adapter just deal with data in memory.

5. So when data in memory is updated, we just need to call the adapter's notifyDataSetChanged(). Since the fragment is already created, the adapter's onItemPosition() will be called before notifyDataSetChanged() returns. Nothing needs to be done in getItemPosition(). Then the data is updated.

You can also use my app, App Detective to view the manifest file of any app you have installed on your device.

You need to put the arguments to pass ("/select etc") in the second parameter of the Start method.

TextBox tbx = this.Controls.Find("textBox1", true).FirstOrDefault() as TextBox;
tbx.Text = "found!";

If Controls.Find is not found "textBox1" => error. You must add code.

If(tbx != null)

Edit:

TextBox tbx = this.Controls.Find("textBox1", true).FirstOrDefault() as TextBox;
If(tbx != null)
   tbx.Text = "found!";

To answer your first question: yes, if the file is not there Python will create it.

Secondly, the user (yourself) running the python script doesn't have write privileges to create a file in the directory.

You should also not use CAST for getting the text of a hash algorithm. CAST(HASHBYTES('...') AS VARCHAR(32)) is not the same as CONVERT(VARCHAR(32), HASHBYTES('...'), 2). Without the last parameter, the result would be the same, but not a readable text. As far as I know, You cannot specify that last parameter in CAST.

For redhat linux

sudo vi /var/lib/pgsql9/data/postgresql.conf 

pgsql9 is the folder for the postgres version installed, might be different for others

changed listen_addresses = '*' from listen_addresses = ‘localhost’ and then

sudo /etc/init.d/postgresql stop
sudo /etc/init.d/postgresql start

Simply use String.ElementAt(). It's quite similar to java's String.charAt(). Have fun coding!

Here is also the code to handle the result:

def foo (a):
    x=a
    y=a*2
    return (x,y)

(x,y) = foo(50)

I've just found an extensive command line parsing library in scalac's scala.tools.cmd package.

See http://www.assembla.com/code/scala-eclipse-toolchain/git/nodes/src/compiler/scala/tools/cmd?rev=f59940622e32384b1e08939effd24e924a8ba8db

If you are in the home directory first move to apache tomcat use below command

cd apache-tomcat/

then move to logs

cd logs/

then open the catelina.out use the below command

tail -f catalina.out

window.location.hash = 'whatever';

You should register an event handler on the window or any element that you want to observe keystrokes on, and use the standard key values instead of keyCode. This modified code from MDN will respond to keydown when the left, right, up, or down arrow keys are pressed:

window.addEventListener("keydown", function (event) {_x000D_
  if (event.defaultPrevented) {_x000D_
    return; // Do nothing if the event was already processed_x000D_
  }_x000D_
_x000D_
  switch (event.key) {_x000D_
    case "ArrowDown":_x000D_
      // code for "down arrow" key press._x000D_
      break;_x000D_
    case "ArrowUp":_x000D_
      // code for "up arrow" key press._x000D_
      break;_x000D_
    case "ArrowLeft":_x000D_
      // code for "left arrow" key press._x000D_
      break;_x000D_
    case "ArrowRight":_x000D_
      // code for "right arrow" key press._x000D_
      break;_x000D_
    default:_x000D_
      return; // Quit when this doesn't handle the key event._x000D_
  }_x000D_
_x000D_
  // Cancel the default action to avoid it being handled twice_x000D_
  event.preventDefault();_x000D_
}, true);_x000D_
// the last option dispatches the event to the listener first,_x000D_
// then dispatches event to window

For Project with web.xml present Project-->Properties-->Deployment Assembly,where you can add Folder src/main/webapp. Save change. Clean the project to get going.

For Project with web.xml not present Set failOnMissingWebXml to false in pom.xml under properties tag.

Use an associative array:

$code_names = array(
                    'tn' => 'Tunisia',
                    'us' => 'United States',
                    'fr' => 'France');

foreach($code_names as $code => $name) {
   //...
}

I believe that using an associative array is the most sensible approach as opposed to using array_combine() because once you have an associative array, you can simply use array_keys() or array_values() to get exactly the same array you had before.

Alternative with reference to Microsoft.VisualBasic (handles uppercase strings too) :

string properCase = Strings.StrConv(str, VbStrConv.ProperCase);

Try to install gcc and gcc-c++, as Cmake works smooth with them.

RedHat-based

yum install gcc gcc-c++

Debian/Ubuntu-based

apt-get install cmake gcc g++

Then,

1. remove 'CMakeCache.txt'
2. run compilation again.

It's very simple. Only add host in your database.yaml file.

chmod +x openfire worked for me. It adds execution permission to the openfire folder.

float deviceOSVersion = [[[UIDevice currentDevice] systemVersion] floatValue];
float versionToBeCompared = 3.1.3; //(For Example in your case)

if(deviceOSVersion < versionToBeCompared)
   //Do whatever you need to do. Device version is lesser than 3.1.3(in your case)
else 
   //Device version should be either equal to the version you specified or above

You can use https://ip-api.io/ to get city Name. It supports IPv6.

As a bonus it allows to check whether ip address is a tor node, public proxy or spammer.

Javascript Code:

$(document).ready(function () {
        $('#btnGetIpDetail').click(function () {
            if ($('#txtIP').val() == '') {
                alert('IP address is reqired');
                return false;
            }
            $.getJSON("http://ip-api.io/json/" + $('#txtIP').val(),
                 function (result) {
                     alert('City Name: ' + result.city)
                     console.log(result);
                 });
        });
    });

HTML Code

<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<div>
    <input type="text" id="txtIP" />
    <button id="btnGetIpDetail">Get Location of IP</button>
</div>

JSON Output

{
    "ip": "64.30.228.118",
    "country_code": "US",
    "country_name": "United States",
    "region_code": "FL",
    "region_name": "Florida",
    "city": "Fort Lauderdale",
    "zip_code": "33309",
    "time_zone": "America/New_York",
    "latitude": 26.1882,
    "longitude": -80.1711,
    "metro_code": 528,
    "suspicious_factors": {
        "is_proxy": false,
        "is_tor_node": false,
        "is_spam": false,
        "is_suspicious": false
    }
}

I had used some of the above solutions but it was working for width but height.

1. If your specified compileSdkVersion greater than 23, you can directly use RecyclerView provided in their respective support libraries of recycler view, like for 23 it will be 'com.android.support:recyclerview-v7:23.2.1'. These support libraries support attributes of wrap_content for both width and height.

You have to add it to your dependencies

compile 'com.android.support:recyclerview-v7:23.2.1'

2. If your compileSdkVersion less than 23, you can use below-mentioned solution.

I found this Google thread regarding this issue. In this thread, there is one contribution which leads to the implementation of LinearLayoutManager.

I have tested it for both height and width and it worked fine for me in both cases.

/*
 * Copyright 2015 serso aka se.solovyev
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 * Contact details
 *
 * Email: [email protected]
 * Site:  http://se.solovyev.org
 */

package org.solovyev.android.views.llm;

import android.content.Context;
import android.graphics.Rect;
import android.support.v4.view.ViewCompat;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;

import java.lang.reflect.Field;

/**
 * {@link android.support.v7.widget.LinearLayoutManager} which wraps its content. Note that this class will always
 * wrap the content regardless of {@link android.support.v7.widget.RecyclerView} layout parameters.
 * <p/>
 * Now it's impossible to run add/remove animations with child views which have arbitrary dimensions (height for
 * VERTICAL orientation and width for HORIZONTAL). However if child views have fixed dimensions
 * {@link #setChildSize(int)} method might be used to let the layout manager know how big they are going to be.
 * If animations are not used at all then a normal measuring procedure will run and child views will be measured during
 * the measure pass.
 */
public class LinearLayoutManager extends android.support.v7.widget.LinearLayoutManager {

    private static boolean canMakeInsetsDirty = true;
    private static Field insetsDirtyField = null;

    private static final int CHILD_WIDTH = 0;
    private static final int CHILD_HEIGHT = 1;
    private static final int DEFAULT_CHILD_SIZE = 100;

    private final int[] childDimensions = new int[2];
    private final RecyclerView view;

    private int childSize = DEFAULT_CHILD_SIZE;
    private boolean hasChildSize;
    private int overScrollMode = ViewCompat.OVER_SCROLL_ALWAYS;
    private final Rect tmpRect = new Rect();

    @SuppressWarnings("UnusedDeclaration")
    public LinearLayoutManager(Context context) {
        super(context);
        this.view = null;
    }

    @SuppressWarnings("UnusedDeclaration")
    public LinearLayoutManager(Context context, int orientation, boolean reverseLayout) {
        super(context, orientation, reverseLayout);
        this.view = null;
    }

    @SuppressWarnings("UnusedDeclaration")
    public LinearLayoutManager(RecyclerView view) {
        super(view.getContext());
        this.view = view;
        this.overScrollMode = ViewCompat.getOverScrollMode(view);
    }

    @SuppressWarnings("UnusedDeclaration")
    public LinearLayoutManager(RecyclerView view, int orientation, boolean reverseLayout) {
        super(view.getContext(), orientation, reverseLayout);
        this.view = view;
        this.overScrollMode = ViewCompat.getOverScrollMode(view);
    }

    public void setOverScrollMode(int overScrollMode) {
        if (overScrollMode < ViewCompat.OVER_SCROLL_ALWAYS || overScrollMode > ViewCompat.OVER_SCROLL_NEVER)
            throw new IllegalArgumentException("Unknown overscroll mode: " + overScrollMode);
        if (this.view == null) throw new IllegalStateException("view == null");
        this.overScrollMode = overScrollMode;
        ViewCompat.setOverScrollMode(view, overScrollMode);
    }

    public static int makeUnspecifiedSpec() {
        return View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    }

    @Override
    public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state, int widthSpec, int heightSpec) {
        final int widthMode = View.MeasureSpec.getMode(widthSpec);
        final int heightMode = View.MeasureSpec.getMode(heightSpec);

        final int widthSize = View.MeasureSpec.getSize(widthSpec);
        final int heightSize = View.MeasureSpec.getSize(heightSpec);

        final boolean hasWidthSize = widthMode != View.MeasureSpec.UNSPECIFIED;
        final boolean hasHeightSize = heightMode != View.MeasureSpec.UNSPECIFIED;

        final boolean exactWidth = widthMode == View.MeasureSpec.EXACTLY;
        final boolean exactHeight = heightMode == View.MeasureSpec.EXACTLY;

        final int unspecified = makeUnspecifiedSpec();

        if (exactWidth && exactHeight) {
            // in case of exact calculations for both dimensions let's use default "onMeasure" implementation
            super.onMeasure(recycler, state, widthSpec, heightSpec);
            return;
        }

        final boolean vertical = getOrientation() == VERTICAL;

        initChildDimensions(widthSize, heightSize, vertical);

        int width = 0;
        int height = 0;

        // it's possible to get scrap views in recycler which are bound to old (invalid) adapter entities. This
        // happens because their invalidation happens after "onMeasure" method. As a workaround let's clear the
        // recycler now (it should not cause any performance issues while scrolling as "onMeasure" is never
        // called whiles scrolling)
        recycler.clear();

        final int stateItemCount = state.getItemCount();
        final int adapterItemCount = getItemCount();
        // adapter always contains actual data while state might contain old data (f.e. data before the animation is
        // done). As we want to measure the view with actual data we must use data from the adapter and not from  the
        // state
        for (int i = 0; i < adapterItemCount; i++) {
            if (vertical) {
                if (!hasChildSize) {
                    if (i < stateItemCount) {
                        // we should not exceed state count, otherwise we'll get IndexOutOfBoundsException. For such items
                        // we will use previously calculated dimensions
                        measureChild(recycler, i, widthSize, unspecified, childDimensions);
                    } else {
                        logMeasureWarning(i);
                    }
                }
                height += childDimensions[CHILD_HEIGHT];
                if (i == 0) {
                    width = childDimensions[CHILD_WIDTH];
                }
                if (hasHeightSize && height >= heightSize) {
                    break;
                }
            } else {
                if (!hasChildSize) {
                    if (i < stateItemCount) {
                        // we should not exceed state count, otherwise we'll get IndexOutOfBoundsException. For such items
                        // we will use previously calculated dimensions
                        measureChild(recycler, i, unspecified, heightSize, childDimensions);
                    } else {
                        logMeasureWarning(i);
                    }
                }
                width += childDimensions[CHILD_WIDTH];
                if (i == 0) {
                    height = childDimensions[CHILD_HEIGHT];
                }
                if (hasWidthSize && width >= widthSize) {
                    break;
                }
            }
        }

        if (exactWidth) {
            width = widthSize;
        } else {
            width += getPaddingLeft() + getPaddingRight();
            if (hasWidthSize) {
                width = Math.min(width, widthSize);
            }
        }

        if (exactHeight) {
            height = heightSize;
        } else {
            height += getPaddingTop() + getPaddingBottom();
            if (hasHeightSize) {
                height = Math.min(height, heightSize);
            }
        }

        setMeasuredDimension(width, height);

        if (view != null && overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS) {
            final boolean fit = (vertical && (!hasHeightSize || height < heightSize))
                    || (!vertical && (!hasWidthSize || width < widthSize));

            ViewCompat.setOverScrollMode(view, fit ? ViewCompat.OVER_SCROLL_NEVER : ViewCompat.OVER_SCROLL_ALWAYS);
        }
    }

    private void logMeasureWarning(int child) {
        if (BuildConfig.DEBUG) {
            Log.w("LinearLayoutManager", "Can't measure child #" + child + ", previously used dimensions will be reused." +
                    "To remove this message either use #setChildSize() method or don't run RecyclerView animations");
        }
    }

    private void initChildDimensions(int width, int height, boolean vertical) {
        if (childDimensions[CHILD_WIDTH] != 0 || childDimensions[CHILD_HEIGHT] != 0) {
            // already initialized, skipping
            return;
        }
        if (vertical) {
            childDimensions[CHILD_WIDTH] = width;
            childDimensions[CHILD_HEIGHT] = childSize;
        } else {
            childDimensions[CHILD_WIDTH] = childSize;
            childDimensions[CHILD_HEIGHT] = height;
        }
    }

    @Override
    public void setOrientation(int orientation) {
        // might be called before the constructor of this class is called
        //noinspection ConstantConditions
        if (childDimensions != null) {
            if (getOrientation() != orientation) {
                childDimensions[CHILD_WIDTH] = 0;
                childDimensions[CHILD_HEIGHT] = 0;
            }
        }
        super.setOrientation(orientation);
    }

    public void clearChildSize() {
        hasChildSize = false;
        setChildSize(DEFAULT_CHILD_SIZE);
    }

    public void setChildSize(int childSize) {
        hasChildSize = true;
        if (this.childSize != childSize) {
            this.childSize = childSize;
            requestLayout();
        }
    }

    private void measureChild(RecyclerView.Recycler recycler, int position, int widthSize, int heightSize, int[] dimensions) {
        final View child;
        try {
            child = recycler.getViewForPosition(position);
        } catch (IndexOutOfBoundsException e) {
            if (BuildConfig.DEBUG) {
                Log.w("LinearLayoutManager", "LinearLayoutManager doesn't work well with animations. Consider switching them off", e);
            }
            return;
        }

        final RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) child.getLayoutParams();

        final int hPadding = getPaddingLeft() + getPaddingRight();
        final int vPadding = getPaddingTop() + getPaddingBottom();

        final int hMargin = p.leftMargin + p.rightMargin;
        final int vMargin = p.topMargin + p.bottomMargin;

        // we must make insets dirty in order calculateItemDecorationsForChild to work
        makeInsetsDirty(p);
        // this method should be called before any getXxxDecorationXxx() methods
        calculateItemDecorationsForChild(child, tmpRect);

        final int hDecoration = getRightDecorationWidth(child) + getLeftDecorationWidth(child);
        final int vDecoration = getTopDecorationHeight(child) + getBottomDecorationHeight(child);

        final int childWidthSpec = getChildMeasureSpec(widthSize, hPadding + hMargin + hDecoration, p.width, canScrollHorizontally());
        final int childHeightSpec = getChildMeasureSpec(heightSize, vPadding + vMargin + vDecoration, p.height, canScrollVertically());

        child.measure(childWidthSpec, childHeightSpec);

        dimensions[CHILD_WIDTH] = getDecoratedMeasuredWidth(child) + p.leftMargin + p.rightMargin;
        dimensions[CHILD_HEIGHT] = getDecoratedMeasuredHeight(child) + p.bottomMargin + p.topMargin;

        // as view is recycled let's not keep old measured values
        makeInsetsDirty(p);
        recycler.recycleView(child);
    }

    private static void makeInsetsDirty(RecyclerView.LayoutParams p) {
        if (!canMakeInsetsDirty) {
            return;
        }
        try {
            if (insetsDirtyField == null) {
                insetsDirtyField = RecyclerView.LayoutParams.class.getDeclaredField("mInsetsDirty");
                insetsDirtyField.setAccessible(true);
            }
            insetsDirtyField.set(p, true);
        } catch (NoSuchFieldException e) {
            onMakeInsertDirtyFailed();
        } catch (IllegalAccessException e) {
            onMakeInsertDirtyFailed();
        }
    }

    private static void onMakeInsertDirtyFailed() {
        canMakeInsetsDirty = false;
        if (BuildConfig.DEBUG) {
            Log.w("LinearLayoutManager", "Can't make LayoutParams insets dirty, decorations measurements might be incorrect");
        }
    }
}

If you're using Twitter Bootstrap styling and base JS for a drop down menu:

.child{ display:none; }
.parent:hover .child{ display:block; }

This is the missing piece to create sticky-dropdowns (that aren't annoying)

• The behavior is to:
  1. Stay open when clicked, close when clicking again anywhere else on the page
  2. Close automatically when the mouse scrolls out of the menu's elements.

If you need to do it for a whole file, it was also suggested to me that you could try from the command line:

sed 's/\\n/\n/g' file > newfile

to do this in a loop, you can do:

display(HTML("".join([f"<a href='{url}'>{url}</a></br>" for url in urls])))

This essentially creates the html text in a loop, and then uses the display(HTML()) construct to display the whole string as HTML

In jQuery I mostly use:

$("#element").trigger("change");

Supplemental answer

I was originally having trouble getting a reference to the ViewPager from other class methods because the addOnTabSelectedListener made an anonymous inner class, which in turn required the ViewPager variable to be declared final. The solution was to use a class member variable and not use the anonymous inner class.

public class MainActivity extends AppCompatActivity {

    TabLayout tabLayout;
    ViewPager viewPager;

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

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        tabLayout = (TabLayout) findViewById(R.id.tab_layout);
        tabLayout.addTab(tabLayout.newTab().setText("Tab 1"));
        tabLayout.addTab(tabLayout.newTab().setText("Tab 2"));
        tabLayout.addTab(tabLayout.newTab().setText("Tab 3"));
        tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);

        viewPager = (ViewPager) findViewById(R.id.pager);
        final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(), tabLayout.getTabCount());
        viewPager.setAdapter(adapter);
        viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));

        // don't use an anonymous inner class here
        tabLayout.addOnTabSelectedListener(tabListener);

    }

    TabLayout.OnTabSelectedListener tabListener = new TabLayout.OnTabSelectedListener() {

        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            viewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {

        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    };

    // The view pager can now be accessed here, too.
    public void someMethod() {
        viewPager.setCurrentItem(0);
    }

}

Its a silly problem, just make sure that the jdk and jre are latest version. This problem mainly occurs due to the automatic update of java(jre) and the jdk is not supported to that version, this makes problem.

use further as

rs.getString(1);
rs.getInt(2);

1, 2 is the column number of table and set int or string as per data-type of coloumn

full binary tree is full if every node has 0 or 2 children. in full binary number of leaf nodes is number of internal nodes plus 1 L=l+1

I have been using both committing the node_modules folder and shrink-wrapping. Both solutions did not make me happy.

In short: a committed node_modules folder adds too much noise to the repository.And shrinkwrap.json is not easy to manage and there isn't any guarantee that some shrink-wrapped project will build in a few years.

I found that Mozilla was using a separate repository for one of their projects: https://github.com/mozilla-b2g/gaia-node-modules

So it did not take me long to implement this idea in a Node.js CLI tool: https://github.com/bestander/npm-git-lock

Just before every build, add:

npm-git-lock --repo [[email protected]:your/dedicated/node_modules/git/repository.git]

It will calculate the hash of your package.json file and will either check out folder node_modules content from a remote repository, or, if it is a first build for this package.json file, will do a clean npm install and push the results to the remote repository.

I suggest that newbies connect a PL2303 to Ubuntu, chmod 777 /dev/ttyUSB0 (file-permissions) and connect to a CuteCom serial terminal. The CuteCom UI is simple \ intuitive. If the PL2303 is continuously broadcasting data, then Cutecom will display data in hex format

The solution would be to install redistributable packages on build server agent. It can be accomplished multiple ways, out of which 3 are described below. Pick one that suits you best.

Use installer with UI

this is the original answer

Right now, in 2017, you can install WebApplication redists with MSBuildTools. Just go to this page that will download MSBuild 2017 Tools and while installation click Web development build tools to get these targets installed as well:

This will lead to installing missing libraries in C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\Microsoft\VisualStudio\v15.0\WebApplications by default

Use command line

disclaimer I haven't tested any of the following proposals

As @PaulHicks and @WaiHaLee suggested in comments, it can also be installed in headless mode (no ui) from CLI, that might actually be preferable way of solving the problem on remove server.

• Solution A - using package manager (choco)

choco install visualstudio2017-workload-webbuildtools

• Solution B - run installer in headless mode

  Notice, this is the same installer that has been proposed to be used in original answer

vs_BuildTools.exe --add Microsoft.VisualStudio.Workload.WebBuildTools --passive

For the height of a div to be responsive, it must be inside a parent element with a defined height to derive it's relative height from.

If you set the height of the container holding the image and text box on the right, you can subsequently set the heights of its two children to be something like 75% and 25%.

However, this will get a bit tricky when the site layout gets narrower and things will get wonky. Try setting the padding on .contentBg to something like 5.5%.

My suggestion is to use Media Queries to tweak the padding at different screen sizes, then bump everything into a single column when appropriate.

site-packages is just the location where Python installs its modules.

No need to "find it", python knows where to find it by itself, this location is always part of the PYTHONPATH (sys.path).

Programmatically you can find it this way:

import sys
site_packages = next(p for p in sys.path if 'site-packages' in p)
print site_packages

'/Users/foo/.envs/env1/lib/python2.7/site-packages'

Even though this was answered/accepted years ago, the presently accepted answer is only correct for one-byte-per-character encodings like iso-8859-1, or for the single-byte subsets of variable-byte character sets (like Latin characters within UTF-8). Even using multiple-byte splices instead would still only work for fixed-multibyte encodings like UTF-16. Given that now UTF-8 is well on its way to being a universal standard, and when looking at this list of languages by number of native speakers and this list of top 30 languages by native/secondary usage, it is important to point out a simple variable-byte character-friendly (not byte-based) technique, using cut -c and tr/sed with character-classes.

Compare the following which doubly fails due to two common Latin-centric mistakes/presumptions regarding the bytes vs. characters issue (one is head vs. cut, the other is [a-z][A-Z] vs. [:upper:][:lower:]):

$ printf '??? µp??? ?a µ??? sa?s???t???;\n' | \
$     head -c 1 | \
$     sed -e 's/[A-Z]/[a-z]/g'
[[unreadable binary mess, or nothing if the terminal filtered it]]

to this (note: this worked fine on FreeBSD, but both cut & tr on GNU/Linux still mangled Greek in UTF-8 for me though):

$ printf '??? µp??? ?a µ??? sa?s???t???;\n' | \
$     cut -c 1 | \
$     tr '[:upper:]' '[:lower:]'
p

Another more recent answer had already proposed "cut", but only because of the side issue that it can be used to specify arbitrary offsets, not because of the directly relevant character vs. bytes issue.

If your cut doesn't handle -c with variable-byte encodings correctly, for "the first X characters" (replace X with your number) you could try:

• sed -E -e '1 s/^(.{X}).*$/\1/' -e q - which is limited to the first line though
• head -n 1 | grep -E -o '^.{X}' - which is limited to the first line and chains two commands though
• dd - which has already been suggested in other answers, but is really cumbersome
• A complicated sed script with sliding window buffer to handle characters spread over multiple lines, but that is probably more cumbersome/fragile than just using something like dd

If your tr doesn't handle character-classes with variable-byte encodings correctly you could try:

• sed -E -e 's/[[:upper:]]/\L&/g (GNU-specific)

In addition to the other answer, I would like to point out that this reasoning is also known as the De Morgan's law. It's actually more about mathematics than programming, but it is so fundamental that every programmer should know about it.

Your problem started like this:

enabled  = A and B
disabled = not ( A and B )

So far so good, but you went one step further and tried to remove the braces. And that's a little tricky, because you have to replace the and/&& with an or/||.

not ( A and B ) = not(A) OR not(B)

Or in a more mathematical notation:

I always keep this law in mind whenever I simplify conditions or work with probabilities.

I suggest you search the blogs of Jason Massie (http://statisticsio.com/) and Brent Ozar (http://www.brentozar.com/) for related info. They have some post about real-life scenario that deals with indexes.

You can either use the readonly or the disabled attribute. Note that when disabled, the input's value will not be submitted when submitting the form.

<input id="price_to" value="price to" readonly="readonly">
<input id="price_to" value="price to" disabled="disabled">

Actually, the best usage is with try/catch. Why? Because you can control the place where you expect the exception.

Consider this example:

@Test (expected = RuntimeException.class)
public void someTest() {
   // test preparation
   // actual test
}

What if one day the code is modified and test preparation will throw a RuntimeException? In that case actual test is not even tested and even if it doesn't throw any exception the test will pass.

That is why it is much better to use try/catch than to rely on the annotation.

To add to the valuable content, I would like to create this reminder on why sometimes RegEx within VBA is not ideal. Not all expressions are supported, but instead may throw an Error 5017 and may leave the author guessing (which I am a victim of myself).

Whilst we can find some sources on what is supported, it would be helpfull to know which metacharacters etc. are not supported. A more in-depth explaination can be found here. Mentioned in this source:

"Although "VBScript’s regular expression ... version 5.5 implements quite a few essential regex features that were missing in previous versions of VBScript. ... JavaScript and VBScript implement Perl-style regular expressions. However, they lack quite a number of advanced features available in Perl and other modern regular expression flavors:"

So, not supported are:

• Start of String ancor \A, alternatively use the ^ caret to match postion before 1st char in string
• End of String ancor \Z, alternatively use the $ dollar sign to match postion after last char in string
• Positive LookBehind, e.g.: (?<=a)b (whilst postive LookAhead is supported)
• Negative LookBehind, e.g.: (?<!a)b (whilst negative LookAhead is supported)
• Atomic Grouping
• Possessive Quantifiers
• Unicode e.g.: \{uFFFF}
• Named Capturing Groups. Alternatively use Numbered Capturing Groups
• Inline modifiers, e.g.: /i (case sensitivity) or /g (global) etc. Set these through the RegExp object properties > RegExp.Global = True and RegExp.IgnoreCase = True if available.
• Conditionals
• Regular Expression Comments. Add these with regular ' comments in script

I already hit a wall more than once using regular expressions within VBA. Usually with LookBehind but sometimes I even forget the modifiers. I have not experienced all these above mentioned backdrops myself but thought I would try to be extensive referring to some more in-depth information. Feel free to comment/correct/add. Big shout out to regular-expressions.info for a wealth of information.

P.S. You have mentioned regular VBA methods and functions, and I can confirm they (at least to myself) have been helpful in their own ways where RegEx would fail.

Your syntax is not correct. It should be like that:

for (Tweet tweet : tweets) {              
    for(long forId : idFromArray){
        long tweetId = tweet.getId();
        if(forId != tweetId){
            String twitterString = tweet.getText();
            db.insertTwitter(twitterString);
        }
    }
}

EDIT

This answer no longer really answers the question since it was updated ;)

The WITH syntax appears to be valid in an inline view, e.g.

UPDATE (WITH comp AS ...
        SELECT SomeColumn, ComputedValue FROM t INNER JOIN comp ...)
   SET SomeColumn=ComputedValue;

But in the quick tests I did this always failed with ORA-01732: data manipulation operation not legal on this view, although it succeeded if I rewrote to eliminate the WITH clause. So the refactoring may interfere with Oracle's ability to guarantee key-preservation.

You should be able to use a MERGE, though. Using the simple example you've posted this doesn't even require a WITH clause:

MERGE INTO mytable t
USING (select *, 42 as ComputedValue from mytable where id = 1) comp
ON (t.id = comp.id)
WHEN MATCHED THEN UPDATE SET SomeColumn=ComputedValue;

But I understand you have a more complex subquery you want to factor out. I think that you will be able to make the subquery in the USING clause arbitrarily complex, incorporating multiple WITH clauses.

Make a script like this:

#!/bin/bash

echo $((0x$1)).$((0x$2)).$((0x$3)).$((0x$4))

Example:

sh converthextoip.sh c0 a8 00 0b

Result:

192.168.0.11

Open Atom and press ALT key you are done.

This works with all DBRM/SQL, it is standard ANSI:

SELECT *
  FROM owner.tablename A
 WHERE condition
  AND  n+1 <= (
         SELECT COUNT(DISTINCT b.column_order)
           FROM owner.tablename B
          WHERE condition
            AND b.column_order>a.column_order
          )
ORDER BY a.column_order DESC

Assuming you're joining on columns with no duplicates, which is a very common case:

• An inner join of A and B gives the result of A intersect B, i.e. the inner part of a Venn diagram intersection.

• An outer join of A and B gives the results of A union B, i.e. the outer parts of a Venn diagram union.

Examples

Suppose you have two tables, with a single column each, and data as follows:

A    B
-    -
1    3
2    4
3    5
4    6

Note that (1,2) are unique to A, (3,4) are common, and (5,6) are unique to B.

Inner join

An inner join using either of the equivalent queries gives the intersection of the two tables, i.e. the two rows they have in common.

select * from a INNER JOIN b on a.a = b.b;
select a.*, b.*  from a,b where a.a = b.b;

a | b
--+--
3 | 3
4 | 4

Left outer join

A left outer join will give all rows in A, plus any common rows in B.

select * from a LEFT OUTER JOIN b on a.a = b.b;
select a.*, b.*  from a,b where a.a = b.b(+);

a |  b
--+-----
1 | null
2 | null
3 |    3
4 |    4

Right outer join

A right outer join will give all rows in B, plus any common rows in A.

select * from a RIGHT OUTER JOIN b on a.a = b.b;
select a.*, b.*  from a,b where a.a(+) = b.b;

a    |  b
-----+----
3    |  3
4    |  4
null |  5
null |  6

Full outer join

A full outer join will give you the union of A and B, i.e. all the rows in A and all the rows in B. If something in A doesn't have a corresponding datum in B, then the B portion is null, and vice versa.

select * from a FULL OUTER JOIN b on a.a = b.b;

 a   |  b
-----+-----
   1 | null
   2 | null
   3 |    3
   4 |    4
null |    6
null |    5

It's not possible to do that using JPA annotation. And this make sense: where a UniqueConstraint clearly define a business rules, an index is just a way to make search faster. So this should really be done by a DBA.

I think you could do it using a specs file.

Under MinGW you could run
gcc -dumpspecs > specs

Where it says

*cpp:
%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT}

You change it to

*cpp:
%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT} -std=c++11

And then place it in
/mingw/lib/gcc/mingw32/<version>/specs

I'm sure you could do the same without a MinGW build. Not sure where to place the specs file though.

The folder is probably either /gcc/lib/ or /gcc/.

If it is in a form then it would be:

<form name="jojo">
<input name="jobtitle">
</form>

Then you would say in javascript:

var val= document.jojo.jobtitle.value

document.formname.elementname

If you are running with default values then you have a lot of room to optimize your mysql configuration.

The first step I recommend is to increase the max_allowed_packet to 128M.

Then download the MySQL Tuning Primer script and run it. It will provide recommendations to several facets of your config for better performance.

Also look into adjusting your timeout values both in MySQL and PHP.

How big (file size) is the file you are importing and are you able to import the file using the mysql command line client instead of PHPMyAdmin?

To add one more important information to above provided answers -

For a process

def proc = command.execute();

always try to use

def outputStream = new StringBuffer();
proc.waitForProcessOutput(outputStream, System.err)
//proc.waitForProcessOutput(System.out, System.err)

rather than

def output = proc.in.text;

to capture the outputs after executing commands in groovy as the latter is a blocking call (SO question for reason).

For such a simple XML structure, you may not want to involve a full blown XML module. Consider a string template for the simplest structures, or Jinja for something a little more complex. Jinja can handle looping over a list of data to produce the inner xml of your document list. That is a bit trickier with raw python string templates

For a Jinja example, see my answer to a similar question.

Here is an example of generating your xml with string templates.

import string
from xml.sax.saxutils import escape

inner_template = string.Template('    <field${id} name="${name}">${value}</field${id}>')

outer_template = string.Template("""<root>
 <doc>
${document_list}
 </doc>
</root>
 """)

data = [
    (1, 'foo', 'The value for the foo document'),
    (2, 'bar', 'The <value> for the <bar> document'),
]

inner_contents = [inner_template.substitute(id=id, name=name, value=escape(value)) for (id, name, value) in data]
result = outer_template.substitute(document_list='\n'.join(inner_contents))
print result

Output:

<root>
 <doc>
    <field1 name="foo">The value for the foo document</field1>
    <field2 name="bar">The &lt;value&gt; for the &lt;bar&gt; document</field2>
 </doc>
</root>

The downer of the template approach is that you won't get escaping of < and > for free. I danced around that problem by pulling in a util from xml.sax

Do what google commands you to do! here: http://developer.android.com/resources/faq/framework.html#3

• Primitive Data Types
• Non-Persistent Objects
• Singleton class - my favorite :D
• A public static field/method
• A HashMap of WeakReferences to Objects
• Persistent Objects (Application Preferences, Files, contentProviders, SQLite DB)

A neat alternative that is much more readable in my opinion, however, arguably a tad less efficient due to the conversions between double and String:

double num = 540.512;
double sum = 1978.8;

// NOTE: This does take care of rounding
String str = String.format("%.1f", (num/sum) * 100.0); 

If you want the answer as a double, you could of course convert it back:

double ans = Double.parseDouble(str);

I am using fpdf to produce PDF files using PHP. It's working well for me so far to produce simple outputs.

This script simplifies finding largest files for further action. I keep it in my ~/bin directory, and put ~/bin in my $PATH.

#!/usr/bin/env bash
# scriptname: above
# author: Jonathan D. Lettvin, 201401220235

# This finds files of size >= $1 (format ${count}[K|M|G|T], default 10G)
# using a reliable version-independent bash hash to relax find's -size syntax.
# Specifying size using 'T' for Terabytes is supported.
# Output size has units (K|M|G|T) in the left hand output column.

# Example:
#   ubuntu12.04$ above 1T
#   128T /proc/core

# http://stackoverflow.com/questions/1494178/how-to-define-hash-tables-in-bash
# Inspiration for hasch: thanks Adam Katz, Oct 18 2012 00:39
function hasch() { local hasch=`echo "$1" | cksum`; echo "${hasch//[!0-9]}"; }
function usage() { echo "Usage: $0 [{count}{k|K|m|M|g|G|t|T}"; exit 1; }
function arg1() {
    # Translate single arg (if present) into format usable by find.
    count=10; units=G;  # Default find -size argument to 10G.
    size=${count}${units}
    if [ -n "$1" ]; then
        for P in TT tT GG gG MM mM Kk kk; do xlat[`hasch ${P:0:1}`]="${P:1:1}"; done
        units=${xlat[`hasch ${1:(-1)}`]}; count=${1:0:(-1)}
        test -n "$units" || usage
        test -x $(echo "$count" | sed s/[0-9]//g) || usage
        if [ "$units" == "T" ]; then units="G"; let count=$count*1024; fi
        size=${count}${units}
    fi
}
function main() {
    sudo \
        find / -type f -size +$size -exec ls -lh {} \; 2>/dev/null | \
        awk '{ N=$5; fn=$9; for(i=10;i<=NF;i++){fn=fn" "$i};print N " " fn }'
}

arg1 $1
main $size

The first answer is correct but you say that you are using cv2 which inherently uses numpy arrays. So, to make a complete different copy of say "myImage":

newImage = myImage.copy()

The above is enough. No need to import numpy.

An RPC style web service uses the names of the method and its parameters to generate XML structures representing a method’s call stack. Document style indicates the SOAP body contains an XML document which can be validated against pre-defined XML schema document.

A good starting point : SOAP Binding: Difference between Document and RPC Style Web Services

.img-responsive {
     margin: 0 auto;
 }

you can write like above code in your document so no need to add one another class in image tag.

I suggest you use LinearLayout's weightSum attribute.

Adding the tag android:weightSum="3" to your LinearLayout's xml declaration and then android:layout_weight="1" to your Buttons will result in the 3 buttons being evenly distributed.

Simple way:

String strSQL = "UPDATE myTable SET Column1 = someValue WHERE columnId = "+ someValue;

myDataBase.execSQL(strSQL);

I was unable to commit csharp-files (*.cs). In the end the problem was that at some point i installed mod_mono, which made the *.cs-files inaccessible, through its configuration. So it may well be an apache-configuration issue, if only some sort of files are not accessible.

grep ".cs" /etc/apache2/mods-enabled/*
...
mod_mono_auto.conf:AddType application/x-asp-net .cs
...

There are several ways to go about this, it depends what your purpose is, if you just want to execute the function as well and in the same context, you can use .apply():

function init(){
  doSomething();
}
function myFunc(){
  init.apply(this, arguments);
  doSomethingHereToo();
}

If you want to replace it with a newer init, it'd look like this:

function init(){
  doSomething();
}
//anytime later
var old_init = init;
init = function() {
  old_init.apply(this, arguments);
  doSomethingHereToo();
};

I want to delete my sqlite db from document directory.I delete the sqlite db successfully by below answer

NSString *strFileName = @"sqlite";
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSArray *contents = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:NULL];
NSEnumerator *enumerator = [contents objectEnumerator];
NSString *filename;
while ((filename = [enumerator nextObject])) {
    NSLog(@"The file name is - %@",[filename pathExtension]);
    if ([[filename pathExtension] isEqualToString:strFileName]) {
       [fileManager removeItemAtPath:[documentsDirectory stringByAppendingPathComponent:filename] error:NULL];
        NSLog(@"The sqlite is deleted successfully");
    }
}

Already beautiful answers are there, but I thought of adding this. Looks good to me. (Copied random numbers from @Dirk). library(scales) is needed`

set.seed(42)
hist(rnorm(500,4),xlim=c(0,10),col='skyblue',border=F)
hist(rnorm(500,6),add=T,col=scales::alpha('red',.5),border=F)

The result is...

Update: This overlapping function may also be useful to some.

hist0 <- function(...,col='skyblue',border=T) hist(...,col=col,border=border) 

I feel result from hist0 is prettier to look than hist

hist2 <- function(var1, var2,name1='',name2='',
              breaks = min(max(length(var1), length(var2)),20), 
              main0 = "", alpha0 = 0.5,grey=0,border=F,...) {    

library(scales)
  colh <- c(rgb(0, 1, 0, alpha0), rgb(1, 0, 0, alpha0))
  if(grey) colh <- c(alpha(grey(0.1,alpha0)), alpha(grey(0.9,alpha0)))

  max0 = max(var1, var2)
  min0 = min(var1, var2)

  den1_max <- hist(var1, breaks = breaks, plot = F)$density %>% max
  den2_max <- hist(var2, breaks = breaks, plot = F)$density %>% max
  den_max <- max(den2_max, den1_max)*1.2
  var1 %>% hist0(xlim = c(min0 , max0) , breaks = breaks,
                 freq = F, col = colh[1], ylim = c(0, den_max), main = main0,border=border,...)
  var2 %>% hist0(xlim = c(min0 , max0),  breaks = breaks,
                 freq = F, col = colh[2], ylim = c(0, den_max), add = T,border=border,...)
  legend(min0,den_max, legend = c(
    ifelse(nchar(name1)==0,substitute(var1) %>% deparse,name1),
    ifelse(nchar(name2)==0,substitute(var2) %>% deparse,name2),
    "Overlap"), fill = c('white','white', colh[1]), bty = "n", cex=1,ncol=3)

  legend(min0,den_max, legend = c(
    ifelse(nchar(name1)==0,substitute(var1) %>% deparse,name1),
    ifelse(nchar(name2)==0,substitute(var2) %>% deparse,name2),
    "Overlap"), fill = c(colh, colh[2]), bty = "n", cex=1,ncol=3) }

The result of

par(mar=c(3, 4, 3, 2) + 0.1) 
set.seed(100) 
hist2(rnorm(10000,2),rnorm(10000,3),breaks = 50)

is

Use the builtin type function to get the type, then you can use the __module__ property to find out where it was defined:

>>> import numpy as np
a = np.array([1, 2, 3])
>>> type(a)
<type 'numpy.ndarray'>
>>> type(a).__module__
'numpy'
>>> type(a).__module__ == np.__name__
True

Also works for items with spaces and ignores directories

for f in *; do [[ -f "$f" ]] && mv "$f" "unix_$f"; done

Simple and wrong way would be combine two columns using + or concatenate and make one columns.

Select *
from XX
where col1+col2 in (Select col1+col2 from YY)

This would be offcourse pretty slow. Can not be used in programming but if in case you are just querying for verifying something may be used.

1) Add any remote repositories you want to compare:

git remote add foobar git://github.com/user/foobar.git

2) Update your local copy of a remote:

git fetch foobar

Fetch won't change your working copy.

3) Compare any branch from your local repository to any remote you've added:

git diff master foobar/master

This is a supplemental answer for those arriving here based on the question title (like I did) and don't need to deal with the security issues related to saving passwords.

How to use Shared Preferences

User settings are generally saved locally in Android using SharedPreferences with a key-value pair. You use the String key to save or look up the associated value.

Write to Shared Preferences

String key = "myInt";
int valueToSave = 10;

SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(context);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putInt(key, valueToSave).commit();

Use apply() instead of commit() to save in the background rather than immediately.

Read from Shared Preferences

String key = "myInt";
int defaultValue = 0;

SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(context);
int savedValue = sharedPref.getInt(key, defaultValue);

The default value is used if the key isn't found.

Notes

• Rather than using a local key String in multiple places like I did above, it would be better to use a constant in a single location. You could use something like this at the top of your settings activity:

    final static String PREF_MY_INT_KEY = "myInt";
  

• I used an int in my example, but you can also use putString(), putBoolean(), getString(), getBoolean(), etc.

• See the documentation for more details.

• There are multiple ways to get SharedPreferences. See this answer for what to look out for.

With "Please select one Item"

@Html.DropDownListFor(model => model.ContentManagement_Send_Section,
  new List<SelectListItem> { new SelectListItem { Value = "0", Text = "Plese Select one Item" } }
    .Concat(db.NameOfPaperSections.Select(x => new SelectListItem { Text = x.NameOfPaperSection, Value = x.PaperSectionID.ToString() })),
  new { @class = "myselect" })  

Derived from the codes: Master Programmer && Joel Wahlund ;
King Reference : https://stackoverflow.com/a/1528193/1395101 JaredPar ;

Thanks Master Programmer && Joel Wahlund && JaredPar ;

Good luck friends.

Open command line and type: netstat -a -o -n or tasklist to see currently running processes. Find port that related to Java and type: taskkill /F /PID <your PID number>. Click Enter.

This can happen when you are running IIS and you run the html page through it, then the Local file system will not be accessible.

To make your link work locally the run the calling html page directly from file browser not visual studio F5 or IIS simply click it to open from the file system, and make sure you are using the link like this:

<a href="file:///F:/VS_2015_WorkSpace/Projects/xyz/Intro.html">Intro</a>

You can add your custom Css:

.pagination{
    display:table;
    margin:0 auto;
}

Thank you

You can simulate it with using varargs, however then you should check it for too many arguments.

public void foo(int param1, int ... param2)
{
   int param2_
   if(param2.length == 0)
      param2_ = 2
   else if(para2.length == 1)
      param2_ = param2[0]
   else
      throw new TooManyArgumentsException(); // user provided too many arguments,

   // rest of the code
}

However this approach is not a good way of doing this, therefore it is better to use overloading.

ini_set('max_execution_time', '300'); //300 seconds = 5 minutes
ini_set('max_execution_time', '0'); // for infinite time of execution 

Place this at the top of your PHP script and let your script loose!

Taken from Increase PHP Script Execution Time Limit Using ini_set()

Use the children funcion of jQuery.

$("#text-field").keydown(function(event) {
    if($('#popup').children('p.filled-text').length > 0) {
        console.log("Found");
     }
});

$.children('').length will return the count of child elements which match the selector.

Why public static void main(String[] args) ?

This is how Java Language is designed and Java Virtual Machine is designed and written.

Oracle Java Language Specification

Check out Chapter 12 Execution - Section 12.1.4 Invoke Test.main:

Finally, after completion of the initialization for class Test (during which other consequential loading, linking, and initializing may have occurred), the method main of Test is invoked.

The method main must be declared public, static, and void. It must accept a single argument that is an array of strings. This method can be declared as either

public static void main(String[] args)

or

public static void main(String... args)

Oracle Java Virtual Machine Specification

Check out Chapter 2 Java Programming Language Concepts - Section 2.17 Execution:

The Java virtual machine starts execution by invoking the method main of some specified class and passing it a single argument, which is an array of strings. This causes the specified class to be loaded (§2.17.2), linked (§2.17.3) to other types that it uses, and initialized (§2.17.4). The method main must be declared public, static, and void.

Oracle OpenJDK Source

Download and extract the source jar and see how JVM is written, check out ../launcher/java.c, which contains native C code behind command java [-options] class [args...]:

/*
 * Get the application's main class.
 * ... ...
 */
if (jarfile != 0) {
    mainClassName = GetMainClassName(env, jarfile);

... ...

    mainClass = LoadClass(env, classname);
    if(mainClass == NULL) { /* exception occured */

... ...

/* Get the application's main method */
mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
                                   "([Ljava/lang/String;)V");

... ...

{    /* Make sure the main method is public */
    jint mods;
    jmethodID mid;
    jobject obj = (*env)->ToReflectedMethod(env, mainClass,
                                            mainID, JNI_TRUE);

... ...

/* Build argument array */
mainArgs = NewPlatformStringArray(env, argv, argc);
if (mainArgs == NULL) {
    ReportExceptionDescription(env);
    goto leave;
}

/* Invoke main method. */
(*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);

... ...

I like the solution of Hans-Peter Störr... But I think it is not quite correct. Sadly containsInAnyOrder does not accept a Collection of objetcs to compare to. So it has to be a Collection of Matchers:

assertThat(set1, containsInAnyOrder(set2.stream().map(IsEqual::equalTo).collect(toList())))

The import are:

import static java.util.stream.Collectors.toList;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.junit.Assert.assertThat;

You can use the following for an unbiased result:

Random random = new Random();
//For 50% chance of true
boolean chance50oftrue = (random.nextInt(2) == 0) ? true : false;

Note: random.nextInt(2) means that the number 2 is the bound. the counting starts at 0. So we have 2 possible numbers (0 and 1) and hence the probability is 50%!

If you want to give more probability to your result to be true (or false) you can adjust the above as following!

Random random = new Random();

//For 50% chance of true
boolean chance50oftrue = (random.nextInt(2) == 0) ? true : false;

//For 25% chance of true
boolean chance25oftrue = (random.nextInt(4) == 0) ? true : false;

//For 40% chance of true
boolean chance40oftrue = (random.nextInt(5) < 2) ? true : false;

using System.Linq;

...

double total = myList.Sum(item => item.Amount);

You could try keeping track of your error due to rounding, and then rounding against the grain if the accumulated error is greater than the fractional portion of the current number.

13.62 -> 14 (+.38)
47.98 -> 48 (+.02 (+.40 total))
 9.59 -> 10 (+.41 (+.81 total))
28.78 -> 28 (round down because .81 > .78)
------------
        100

Not sure if this would work in general, but it seems to work similar if the order is reversed:

28.78 -> 29 (+.22)
 9.59 ->  9 (-.37; rounded down because .59 > .22)
47.98 -> 48 (-.35)
13.62 -> 14 (+.03)
------------
        100

I'm sure there are edge cases where this might break down, but any approach is going to be at least somewhat arbitrary since you're basically modifying your input data.

You have to add this line just before loop

    MyFile = Dir
Loop

This link has the break down

http://clang.llvm.org/docs/AutomaticReferenceCounting.html#ownership.spelling.property

assign implies __unsafe_unretained ownership.

copy implies __strong ownership, as well as the usual behavior of copy semantics on the setter.

retain implies __strong ownership.

strong implies __strong ownership.

unsafe_unretained implies __unsafe_unretained ownership.

weak implies __weak ownership.

I was having problems getting a commandField Delete button to honor the 'return false' response to when a user clicked cancel on the 'Are you sure' pop-up that one gets with using the javascript confirm() function. I didn't want to change it to a template field.

The problem, as I see it, was that these commandField Buttons already have some Javascript associated with them to perform the postback. No amount of simply appending the confirm() function was effective.

Here's how I solved it:

Using JQuery, I first found each delete button on the page (there are several), then manipulated the button's associated Javascript based on whether the visitor agreed or canceled the confirming pop-up.

<script language="javascript" type="text/javascript">
$(document).ready(function() {

               $('input[type="button"]').each(function() {

                   if ($(this).val() == "Delete") {
                       var curEvent = $(this).attr('onclick');
                       var newContent = "if(affirmDelete() == true){" + curEvent + "};" 
                       $(this).attr('onclick',newContent);                       
                   }
               });
}

function affirmDelete() {    
               return confirm('Are you sure?');
}
</script>

1. git reset --hard CommitId
2. git push -f origin master

1st command will rest your head to commitid and 2nd command will delete all commit after that commit id on master branch.

Note: Don't forget to add -f in push otherwise it will be rejected.

For me I usually send back an HttpResponseException and set the status code accordingly depending on the exception thrown and if the exception is fatal or not will determine whether I send back the HttpResponseException immediately.

At the end of the day it's an API sending back responses and not views, so I think it's fine to send back a message with the exception and status code to the consumer. I currently haven't needed to accumulate errors and send them back as most exceptions are usually due to incorrect parameters or calls etc.

An example in my app is that sometimes the client will ask for data, but there isn't any data available so I throw a custom NoDataAvailableException and let it bubble to the Web API app, where then in my custom filter which captures it sending back a relevant message along with the correct status code.

I am not 100% sure on what's the best practice for this, but this is working for me currently so that's what I'm doing.

Update:

Since I answered this question a few blog posts have been written on the topic:

https://weblogs.asp.net/fredriknormen/asp-net-web-api-exception-handling

(this one has some new features in the nightly builds) https://docs.microsoft.com/archive/blogs/youssefm/error-handling-in-asp-net-webapi

Update 2

Update to our error handling process, we have two cases:

1. For general errors like not found, or invalid parameters being passed to an action we return a HttpResponseException to stop processing immediately. Additionally for model errors in our actions we will hand the model state dictionary to the Request.CreateErrorResponse extension and wrap it in a HttpResponseException. Adding the model state dictionary results in a list of the model errors sent in the response body.

2. For errors that occur in higher layers, server errors, we let the exception bubble to the Web API app, here we have a global exception filter which looks at the exception, logs it with ELMAH and tries to make sense of it setting the correct HTTP status code and a relevant friendly error message as the body again in a HttpResponseException. For exceptions that we aren't expecting the client will receive the default 500 internal server error, but a generic message due to security reasons.

Update 3

Recently, after picking up Web API 2, for sending back general errors we now use the IHttpActionResult interface, specifically the built in classes for in the System.Web.Http.Results namespace such as NotFound, BadRequest when they fit, if they don't we extend them, for example a NotFound result with a response message:

public class NotFoundWithMessageResult : IHttpActionResult
{
    private string message;

    public NotFoundWithMessageResult(string message)
    {
        this.message = message;
    }

    public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
    {
        var response = new HttpResponseMessage(HttpStatusCode.NotFound);
        response.Content = new StringContent(message);
        return Task.FromResult(response);
    }
}

Note that in Entity Framework 6.1 (currently in beta) will support the IndexAttribute to annotate the index properties which will automatically result in a (unique) index in your Code First Migrations.

Visibility is animatable. Check this blog post about it: http://www.greywyvern.com/?post=337

You can see it here too: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_animated_properties

Let's say you have a menu that you want to fade-in and fade-out on mouse hover. If you use opacity:0 only, your transparent menu will still be there and it will animate when you hover the invisible area. But if you add visibility:hidden, you can eliminate this problem:

div {_x000D_
    width:100px;_x000D_
    height:20px;_x000D_
}_x000D_
.menu {_x000D_
    visibility:hidden;_x000D_
    opacity:0;_x000D_
    transition:visibility 0.3s linear,opacity 0.3s linear;_x000D_
    _x000D_
    background:#eee;_x000D_
    width:100px;_x000D_
    margin:0;_x000D_
    padding:5px;_x000D_
    list-style:none;_x000D_
}_x000D_
div:hover > .menu {_x000D_
    visibility:visible;_x000D_
    opacity:1;_x000D_
}

<div>_x000D_
  <a href="#">Open Menu</a>_x000D_
  <ul class="menu">_x000D_
    <li><a href="#">Item</a></li>_x000D_
    <li><a href="#">Item</a></li>_x000D_
    <li><a href="#">Item</a></li>_x000D_
  </ul>_x000D_
</div>

The portable way to do this is:

sed -e 's/[ \t][ \t]*/\
/g'

That's an actual newline between the backslash and the slash-g. Many sed implementations don't know about \n, so you need a literal newline. The backslash before the newline prevents sed from getting upset about the newline. (in sed scripts the commands are normally terminated by newlines)

With GNU sed you can use \n in the substitution, and \s in the regex:

sed -e 's/\s\s*/\n/g'

GNU sed also supports "extended" regular expressions (that's egrep style, not perl-style) if you give it the -r flag, so then you can use +:

sed -r -e 's/\s+/\n/g'

If this is for Linux only, you can probably go with the GNU command, but if you want this to work on systems with a non-GNU sed (eg: BSD, Mac OS-X), you might want to go with the more portable option.

replace $ sign with jQuery like this:

jQuery(function(){
//your code here
});

LINQ to XML Example:

// Loading from a file, you can also load from a stream
var xml = XDocument.Load(@"C:\contacts.xml");


// Query the data and write out a subset of contacts
var query = from c in xml.Root.Descendants("contact")
            where (int)c.Attribute("id") < 4
            select c.Element("firstName").Value + " " +
                   c.Element("lastName").Value;


foreach (string name in query)
{
    Console.WriteLine("Contact's Full Name: {0}", name);
}

Reference: LINQ to XML at MSDN

Answering your very last question: Unless a profiler tells you, that you spend ridiculous amounts of time in an instanceof: Yes, you're nitpicking.

Before wondering about optimizing something that never needed to be optimized: Write your algorithm in the most readable way and run it. Run it, until the jit-compiler gets a chance to optimize it itself. If you then have problems with this piece of code, use a profiler to tell you, where to gain the most and optimize this.

In times of highly optimizing compilers, your guesses about bottlenecks will be likely to be completely wrong.

And in true spirit of this answer (which I wholeheartly believe): I absolutely don't know how instanceof and == relate once the jit-compiler got a chance to optimize it.

I forgot: Never measure the first run.

pyOpenSSL is an interface to the OpenSSL library. It should provide everything you need.

INSERT INTO prices (group, id, price)
  SELECT 7, articleId, 1.50 FROM article WHERE name LIKE 'ABC%'

x if y else z is the syntax for the expression you're returning for each element. Thus you need:

[ x if x%2 else x*100 for x in range(1, 10) ]

The confusion arises from the fact you're using a filter in the first example, but not in the second. In the second example you're only mapping each value to another, using a ternary-operator expression.

With a filter, you need:

[ EXP for x in seq if COND ]

Without a filter you need:

[ EXP for x in seq ]

and in your second example, the expression is a "complex" one, which happens to involve an if-else.

Jython: Python for the Java Platform - http://www.jython.org/index.html

You can easily call python functions from Java code with Jython. That is as long as your python code itself runs under jython, i.e. doesn't use some c-extensions that aren't supported.

If that works for you, it's certainly the simplest solution you can get. Otherwise you can use org.python.util.PythonInterpreter from the new Java6 interpreter support.

A simple example from the top of my head - but should work I hope: (no error checking done for brevity)

PythonInterpreter interpreter = new PythonInterpreter();
interpreter.exec("import sys\nsys.path.append('pathToModules if they are not there by default')\nimport yourModule");
// execute a function that takes a string and returns a string
PyObject someFunc = interpreter.get("funcName");
PyObject result = someFunc.__call__(new PyString("Test!"));
String realResult = (String) result.__tojava__(String.class);

One of the popular solutions to this question will have issues with the new line character. It can be fixed pretty easy with a simple str_replace.

$handle = fopen("some_file.txt", "r");
if ($handle) {
    while (($line = fgets($handle)) !== false) {
        $line = str_replace("\n", "", $line);
    }
    fclose($handle);
}

All the solutions are correct, but I found it easier just write a function to implement this. like this:

template <class T1, class T2>
void ContainerInsert(T1 t1, T2 t2)
{
    t1->insert(t1->end(), t2->begin(), t2->end());
}

That way you can avoid the temporary placement like this:

ContainerInsert(vec, GetSomeVector());

I would MD5/SHA1 the password if you don't need to be able to reverse the hash. When users login, you can just encrypt the password given and compare it to the hash. Hash collisions are nearly impossible in this case, unless someone gains access to the database and sees a hash they already have a collision for.

This code should do the trick:

var array = ["ab", "abcdefgh", "abcd"];

array.sort(function(a, b){return b.length - a.length});

console.log(JSON.stringify(array, null, '\t'));

You can go from String (hex) to byte array to String as UTF-8(?). Make sure your hex string does not have leading spaces and stuff.

public static byte[] hexStringToByteArray(String hex) {
    int l = hex.length();
    byte[] data = new byte[l / 2];
    for (int i = 0; i < l; i += 2) {
        data[i / 2] = (byte) ((Character.digit(hex.charAt(i), 16) << 4)
                + Character.digit(hex.charAt(i + 1), 16));
    }
    return data;
}

Usage:

String b = "0xfd00000aa8660b5b010006acdc0100000101000100010000";
byte[] bytes = hexStringToByteArray(b);
String st = new String(bytes, StandardCharsets.UTF_8);
System.out.println(st);

My approach, i think coming more from an development than an operations point of view, is:

• Error means that the execution of some task could not be completed; an email couldn't be sent, a page couldn't be rendered, some data couldn't be stored to a database, something like that. Something has definitively gone wrong.
• Warning means that something unexpected happened, but that execution can continue, perhaps in a degraded mode; a configuration file was missing but defaults were used, a price was calculated as negative, so it was clamped to zero, etc. Something is not right, but it hasn't gone properly wrong yet - warnings are often a sign that there will be an error very soon.
• Info means that something normal but significant happened; the system started, the system stopped, the daily inventory update job ran, etc. There shouldn't be a continual torrent of these, otherwise there's just too much to read.
• Debug means that something normal and insignificant happened; a new user came to the site, a page was rendered, an order was taken, a price was updated. This is the stuff excluded from info because there would be too much of it.
• Trace is something i have never actually used.

for 1. the number of integers read in, you can just use length property of array like :

int count = args.length

which gives you no of elements in an array. And 2. to calculate average value : you are doing in correct way.

You can do something like this.

 <div>
          { object.map((item, index) => this.getComponent(item, index)) }
 </div>

getComponent(item, index) {
    switch (item.type) {
      case '1':
        return <Comp1/>
      case '2':
        return <Comp2/>
      case '3':
        return <Comp3 />
    }
  }

I have PHP 5.3.1 and Apache

When I add the extension=php_intl.dll to php.ini and restart apache, it comes an alert that says "the requested operation has failed"

And this error on Event Monitor:

Faulting application name: httpd.exe, version: 2.2.14.0, time stamp: 0x4ac181d6
Faulting module name: php5ts.dll, version: 5.3.1.0, time stamp: 0x4b051b35
Exception code: 0xc0000005

The problem was some DLLs like icudt36.dll were missing (noticed with sysinternals ProcMon), I've downloaded php 5.3.1 zip version and extract all DLL's to PHP folder. That solved the problem.

I post here my question just in case is helpful for somebody else. My problem was that my colleague was connected to the same device and I was not able to connect to the same device.

Note: I had this problem with Amazon Fire TV connecting over Wifi.

There are 2 solutions:

Easy to "drop" his connection (sorry buddy :)

Restart the device
adb kill-server
adb start-server
adb connect device-ip

A bit more difficult but two clients can use the same device (use different TCP ports)

Please look at this answer

I wanted to add that there is another possibility - to use the function na().

e.g. =if(a2 = 5,"good",na());

This will fill the cell with #N/A and if you chart the column, the data won't be graphed. I know it isn't "blank" as such, but it's another possibility if you have blank strings in your data and "" is a valid option.

Also, count(a:a) will not count cells which have been set to n/a by doing this.

You can use toLocaleString(). This is a javascript method.

var event = new Date("01/02/1993");_x000D_
_x000D_
var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };_x000D_
_x000D_
console.log(event.toLocaleString('en', options));_x000D_
_x000D_
// expected output: "Saturday, January 2, 1993"

Almost all formats supported. Have look on this link for more details.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString

If your method has no side effects, and doesn't return anything, then it's not doing anything.

If your method does some computation and returns the result of that computation, you can obviously enough assert that the result returned is correct.

If your code doesn't return anything but does have side effects, you can call the code and then assert that the correct side effects have happened. What the side effects are will determine how you do the checks.

In your example, you are calling static methods from your non-returning functions, which makes it tricky unless you can inspect that the result of all those static methods are correct. A better way - from a testing point of view - is to inject actual objects in that you call methods on. You can then use something like EasyMock or Mockito to create a Mock Object in your unit test, and inject the mock object into the class. The Mock Object then lets you assert that the correct functions were called, with the correct values and in the correct order.

For example:

private ErrorFile errorFile;

public void setErrorFile(ErrorFile errorFile) {
    this.errorFile = errorFile;
}

private void method1(arg1) {
    if (arg1.indexOf("$") == -1) {

        //Add an error message 
        errorFile.addErrorMessage("There is a dollar sign in the specified parameter");
    }
}

Then in your test you can write:

public void testMethod1() {
    ErrorFile errorFile = EasyMock.createMock(ErrorFile.class);
    errorFile.addErrorMessage("There is a dollar sign in the specified parameter");
    EasyMock.expectLastCall(errorFile);
    EasyMock.replay(errorFile);

    ClassToTest classToTest = new ClassToTest();
    classToTest.setErrorFile(errorFile);
    classToTest.method1("a$b");

    EasyMock.verify(errorFile); // This will fail the test if the required addErrorMessage call didn't happen
}

For me also it was not working. Then i try with javascript inside php like

echo "<script type='text/javascript'>  window.location='index.php'; </script>";

This will definitely working.

Just for the hell of it I've done a bit of hacking on a script that does things purely textually, purely in Bash. I hope I caught all the edge cases.

Note that the ${var//pat/repl} that I mentioned in the other answer doesn't work since you can't make it replace only the shortest possible match, which is a problem for replacing /foo/../ as e.g. /*/../ will take everything before it, not just a single entry. And since these patterns aren't really regexes I don't see how that can be made to work. So here's the nicely convoluted solution I came up with, enjoy. ;)

By the way, let me know if you find any unhandled edge cases.

#!/bin/bash

canonicalize_path() {
  local path="$1"
  OIFS="$IFS"
  IFS=$'/'
  read -a parts < <(echo "$path")
  IFS="$OIFS"

  local i=${#parts[@]}
  local j=0
  local back=0
  local -a rev_canon
  while (($i > 0)); do
    ((i--))
    case "${parts[$i]}" in
      ""|.) ;;
      ..) ((back++));;
      *) if (($back > 0)); then
           ((back--))
         else
           rev_canon[j]="${parts[$i]}"
           ((j++))
         fi;;
    esac
  done
  while (($j > 0)); do
    ((j--))
    echo -n "/${rev_canon[$j]}"
  done
  echo
}

canonicalize_path "/.././..////../foo/./bar//foo/bar/.././bar/../foo/bar/./../..//../foo///bar/"

If you missed to check the "generate web.xml" option when creating a new project, no worries If it is a Dynamic Web Project in your project right click on "Deployment Descriptor:...." and Click on "Generate Deployment Descriptor Stub" this will create a minimal /webapp/WEB-INF/web.xml.

the accepted answer does not work any longer with laravel 5.3 because mailable tries to access ->email and results in

ErrorException in Mailable.php line 376: Trying to get property of non-object

a working code for laravel 5.3 is this:

$users_temp = explode(',', '[email protected],[email protected]');
    $users = [];
    foreach($users_temp as $key => $ut){
      $ua = [];
      $ua['email'] = $ut;
      $ua['name'] = 'test';
      $users[$key] = (object)$ua;
    }
 Mail::to($users)->send(new OrderAdminSendInvoice($o));

Add || goto :label to each line, and then define a :label.

For example, create this .cmd file:

@echo off

echo Starting very complicated batch file...
ping -invalid-arg || goto :error
echo OH noes, this shouldn't have succeeded.
goto :EOF

:error
echo Failed with error #%errorlevel%.
exit /b %errorlevel%

See also question about exiting batch file subroutine.

Your action method considers model type asList<string>. But, in your view you are waiting for IEnumerable<Standings.Models.Teams>. You can solve this problem with changing the model in your view to List<string>.

But, the best approach would be to return IEnumerable<Standings.Models.Teams> as a model from your action method. Then you haven't to change model type in your view.

But, in my opinion your models are not correctly implemented. I suggest you to change it as:

public class Team
{
    public int Position { get; set; }
    public string HomeGround {get; set;}
    public string NickName {get; set;}
    public int Founded { get; set; }
    public string Name { get; set; }
}

Then you must change your action method as:

public ActionResult Index()
{
    var model = new List<Team>();

    model.Add(new Team { Name = "MU"});
    model.Add(new Team { Name = "Chelsea"});
    ...

    return View(model);
}

And, your view:

@model IEnumerable<Standings.Models.Team>

@{
     ViewBag.Title = "Standings";
}

@foreach (var item in Model)
{
    <div>
        @item.Name
        <hr />
    </div>
}

None of the answers worked and then I was forgetting to set minimum deployment target which can be found in Project -> General -> Deployment Info -> Deployment Target -> 8.0

From the first result on Google:

mailto:[email protected]_t?subject=Header&body=This%20is...%20the%20first%20line%0D%0AThis%20is%20the%20second

With JUnit5 I think the best way is to @ExtendWith(MockitoExtension.class) with @Mock in the method parameter or the field.

The following example demonstrates that with Hamcrest matchers.

package com.vogella.junit5;                                                                    
                                                                                               
import static org.hamcrest.MatcherAssert.assertThat;                                           
import static org.hamcrest.Matchers.hasItem;                                                   
import static org.mockito.Mockito.verify;                                                      
                                                                                               
import java.util.Arrays;                                                                       
import java.util.List;                                                                         
                                                                                               
import org.junit.jupiter.api.Test;                                                             
import org.junit.jupiter.api.extension.ExtendWith;                                             
import org.mockito.ArgumentCaptor;                                                             
import org.mockito.Captor;                                                                     
import org.mockito.Mock;                                                                       
import org.mockito.junit.jupiter.MockitoExtension;                                             
                                                                                               
@ExtendWith(MockitoExtension.class)                                                            
public class MockitoArgumentCaptureTest {                                                      
                                                                                               
                                                                                               
    @Captor                                                                                    
    private ArgumentCaptor<List<String>> captor;                                               
                                                                                               
    @Test                                                                                      
    public final void shouldContainCertainListItem(@Mock List<String> mockedList) {            
        var asList = Arrays.asList("someElement_test", "someElement");                         
        mockedList.addAll(asList);                                                             
                                                                                               
        verify(mockedList).addAll(captor.capture());                                           
        List<String> capturedArgument = captor.getValue();                                     
        assertThat(capturedArgument, hasItem("someElement"));                                  
    }                                                                                          
}                                                                                              
                                                                                              

See https://www.vogella.com/tutorials/Mockito/article.html for the required Maven/Gradle dependencies.

If you want a breakdown of how many files are in each dir under your current dir:

for i in */ .*/ ; do 
    echo -n $i": " ; 
    (find "$i" -type f | wc -l) ; 
done

That can go all on one line, of course. The parenthesis clarify whose output wc -l is supposed to be watching (find $i -type f in this case).

You can use date filter to convert in date and display in specific format.

In .ts file (typescript):

let dateString = '1968-11-16T00:00:00' 
let newDate = new Date(dateString);

In HTML:

{{dateString |  date:'MM/dd/yyyy'}}

Below are some formats which you can implement :

Backend:

public todayDate = new Date();

HTML :

<select>
<option value=""></option>
<option value="MM/dd/yyyy">[{{todayDate | date:'MM/dd/yyyy'}}]</option>
<option value="EEEE, MMMM d, yyyy">[{{todayDate | date:'EEEE, MMMM d, yyyy'}}]</option>
<option value="EEEE, MMMM d, yyyy h:mm a">[{{todayDate | date:'EEEE, MMMM d, yyyy h:mm a'}}]</option>
<option value="EEEE, MMMM d, yyyy h:mm:ss a">[{{todayDate | date:'EEEE, MMMM d, yyyy h:mm:ss a'}}]</option>
<option value="MM/dd/yyyy h:mm a">[{{todayDate | date:'MM/dd/yyyy h:mm a'}}]</option>
<option value="MM/dd/yyyy h:mm:ss a">[{{todayDate | date:'MM/dd/yyyy h:mm:ss a'}}]</option>
<option value="MMMM d">[{{todayDate | date:'MMMM d'}}]</option>   
<option value="yyyy-MM-ddTHH:mm:ss">[{{todayDate | date:'yyyy-MM-ddTHH:mm:ss'}}]</option>
<option value="h:mm a">[{{todayDate | date:'h:mm a'}}]</option>
<option value="h:mm:ss a">[{{todayDate | date:'h:mm:ss a'}}]</option>      
<option value="EEEE, MMMM d, yyyy hh:mm:ss a">[{{todayDate | date:'EEEE, MMMM d, yyyy hh:mm:ss a'}}]</option>
<option value="MMMM yyyy">[{{todayDate | date:'MMMM yyyy'}}]</option> 
</select>

I experienced the same issue on a Drupal site. After enabling the Geocoding API on the Google Cloud Platform, works for me. On my setup I require two APIs, Geocoding and Maps Javascript APIs.

putting NOW() in quotes won't work as Active Records will put escape the NOW() into a string and tries to push it into the db as a string of "NOW()"... you will need to use

$this->db->set('time', 'NOW()', FALSE); 

to set it correctly.

you can always check your sql afterward with

$this->db->last_query();

Don't use spaces...

(Incorrect)

SPTH = '/home/Foo/Documents/Programs/ShellScripts/Butler'

(Correct)

SPTH='/home/Foo/Documents/Programs/ShellScripts/Butler'

Eclipse 3.4 has a Favourites section under Window->Preferences->Java->Editor->Content Assist

If you use org.junit.Assert a lot, you might find some value to adding it there.

I solved this issue by adding apiVersion inside AWS.S3(), then it works perfectly for S3 signed url.

Change from

var s3 = new AWS.S3();

to

var s3 = new AWS.S3({apiVersion: '2006-03-01'});

For more detailed examples, can refer to this AWS Doc SDK Example: https://github.com/awsdocs/aws-doc-sdk-examples/blob/master/javascript/example_code/s3/s3_getsignedurl.js

You can try :

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" >

Just like you tried before, but caution:

It seems like the X-UA-Compatible tag has to be the first tag in the < head > section

If this conclusion is correct, then I believe it is undocumented in Microsoft’s blogs/msdn (and if it is documented, then it isn’t sticking out well enough from the docs). Ensuring that this was the first meta tag in the forced IE9 to switch to IE8 mode successfully

import csv first and use csv.DictReader its easy to process...

In HTML, elements containing nothing but normal whitespace characters are considered empty. A paragraph that contains just a normal space character will have zero height. A non-breaking space is a special kind of whitespace character that isn't considered to be insignificant, so it can be used as content for a non-empty paragraph.

Even if you consider CSS margins on paragraphs, since an "empty" paragraph has zero height, its vertical margins will collapse. This causes it to have no height and no margins, making it appear as if it were never there at all.

JavaScript injection is not at attack on your web application. JavaScript injection simply adds JavaScript code for the browser to execute. The only way JavaScript could harm your web application is if you have a blog posting or some other area in which user input is stored. This could be a problem because an attacker could inject their code and leave it there for other users to execute. This attack is known as Cross-Site Scripting. The worst scenario would be Cross-Site Forgery, which allows attackers to inject a statement that will steal a user's cookie and therefore give the attacker their session ID.

Here is the approach I follow whenever I see this type of error:

1. One way to debug this issue is by first taking whatever response is coming as String.class then applying Gson().fromJson(StringResp.body(), MyDTO.class). It will still fail most probably but this time it will throw the fields which are creating this error to happen in first place. Post the modification, we can use the previous approach as usual.

ResponseEntity<String> respStr = restTemplate.exchange(URL,HttpMethod.GET, entity, String.class);
Gson g = new Gson();

The below step will throw error with the fields which is causing the issue

MyDTO resp = g.fromJson(respStr.getBody(), MyDTO.class);

I don't have the error message with me but it will point to the field which is problematic and the reason for it. Resolve those and try again with previous approach.

The following parser reads a file, parses it into a generic JsonElement, using Google's JsonParser.parse method, and then converts all the items in the generated JSON into a native Java List<object> or Map<String, Object>.

Note: The code below is based off of Vikas Gupta's answer.

GsonParser.java

import java.io.FileNotFoundException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import com.google.gson.GsonBuilder;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonPrimitive;

public class GsonParser {
    public static void main(String[] args) {
        try {
            print(loadJsonArray("data_array.json", true));
            print(loadJsonObject("data_object.json", true));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void print(Object object) {
        System.out.println(new GsonBuilder().setPrettyPrinting().create().toJson(object).toString());
    }

    public static Map<String, Object> loadJsonObject(String filename, boolean isResource)
            throws UnsupportedEncodingException, FileNotFoundException, JsonIOException, JsonSyntaxException, MalformedURLException {
        return jsonToMap(loadJson(filename, isResource).getAsJsonObject());
    }

    public static List<Object> loadJsonArray(String filename, boolean isResource)
            throws UnsupportedEncodingException, FileNotFoundException, JsonIOException, JsonSyntaxException, MalformedURLException {
        return jsonToList(loadJson(filename, isResource).getAsJsonArray());
    }

    private static JsonElement loadJson(String filename, boolean isResource) throws UnsupportedEncodingException, FileNotFoundException, JsonIOException, JsonSyntaxException, MalformedURLException {
        return new JsonParser().parse(new InputStreamReader(FileLoader.openInputStream(filename, isResource), "UTF-8"));
    }

    public static Object parse(JsonElement json) {
        if (json.isJsonObject()) {
            return jsonToMap((JsonObject) json);
        } else if (json.isJsonArray()) {
            return jsonToList((JsonArray) json);
        }

        return null;
    }

    public static Map<String, Object> jsonToMap(JsonObject jsonObject) {
        if (jsonObject.isJsonNull()) {
            return new HashMap<String, Object>();
        }

        return toMap(jsonObject);
    }

    public static List<Object> jsonToList(JsonArray jsonArray) {
        if (jsonArray.isJsonNull()) {
            return new ArrayList<Object>();
        }

        return toList(jsonArray);
    }

    private static final Map<String, Object> toMap(JsonObject object) {
        Map<String, Object> map = new HashMap<String, Object>();

        for (Entry<String, JsonElement> pair : object.entrySet()) {
            map.put(pair.getKey(), toValue(pair.getValue()));
        }

        return map;
    }

    private static final List<Object> toList(JsonArray array) {
        List<Object> list = new ArrayList<Object>();

        for (JsonElement element : array) {
            list.add(toValue(element));
        }

        return list;
    }

    private static final Object toPrimitive(JsonPrimitive value) {
        if (value.isBoolean()) {
            return value.getAsBoolean();
        } else if (value.isString()) {
            return value.getAsString();
        } else if (value.isNumber()){
            return value.getAsNumber();
        }

        return null;
    }

    private static final Object toValue(JsonElement value) {
        if (value.isJsonNull()) {
            return null;
        } else if (value.isJsonArray()) {
            return toList((JsonArray) value);
        } else if (value.isJsonObject()) {
            return toMap((JsonObject) value);
        } else if (value.isJsonPrimitive()) {
            return toPrimitive((JsonPrimitive) value);
        }

        return null;
    }
}

FileLoader.java

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Scanner;

public class FileLoader {
    public static Reader openReader(String filename, boolean isResource) throws UnsupportedEncodingException, FileNotFoundException, MalformedURLException {
        return openReader(filename, isResource, "UTF-8");
    }

    public static Reader openReader(String filename, boolean isResource, String charset) throws UnsupportedEncodingException, FileNotFoundException, MalformedURLException {
        return new InputStreamReader(openInputStream(filename, isResource), charset);
    }

    public static InputStream openInputStream(String filename, boolean isResource) throws FileNotFoundException, MalformedURLException {
        if (isResource) {
            return FileLoader.class.getClassLoader().getResourceAsStream(filename);
        }

        return new FileInputStream(load(filename, isResource));
    }

    public static String read(String path, boolean isResource) throws IOException {
        return read(path, isResource, "UTF-8");
    }

    public static String read(String path, boolean isResource, String charset) throws IOException {
        return read(pathToUrl(path, isResource), charset);
    }

    @SuppressWarnings("resource")
    protected static String read(URL url, String charset) throws IOException {
        return new Scanner(url.openStream(), charset).useDelimiter("\\A").next();
    }

    protected static File load(String path, boolean isResource) throws MalformedURLException {
        return load(pathToUrl(path, isResource));
    }

    protected static File load(URL url) {
        try {
            return new File(url.toURI());
        } catch (URISyntaxException e) {
            return new File(url.getPath());
        }
    }

    private static final URL pathToUrl(String path, boolean isResource) throws MalformedURLException {
        if (isResource) {
            return FileLoader.class.getClassLoader().getResource(path);
        }

        return new URL("file:/" + path);
    }
}

attr_accessor is ruby code and is used when you do not have a column in your database, but still want to show a field in your forms. The only way to allow this is to attr_accessor :fieldname and you can use this field in your View, or model, if you wanted, but mostly in your View.

Let's consider the following example

class Address
    attr_reader :street
    attr_writer :street  
    def initialize
        @street = ""
    end
end

Here we have used attr_reader (readable attribute) and attr_writer (writable attribute) for accessing purpose. But we can achieve the same functionality using attr_accessor. In short, attr_accessor provides access to both getter and setter methods.

So modified code is as below

class Address
    attr_accessor :street  
    def initialize
        @street = ""
    end
end

attr_accessible allows you to list all the columns you want to allow Mass Assignment. The opposite of this is attr_protected which means this field I do NOT want anyone to be allowed to Mass Assign to. More than likely it is going to be a field in your database that you don't want anyone monkeying around with. Like a status field, or the like.

I guess you cant, this maybe a limitation or not included in the IE browser. I have tried your jsfiddle with IE6-8 and all of it doesn't show the scrollbar and not sure with IE9. While in FF and chrome the scrollbar is shown. I also want to see how to do it in IE if possible.

If you really want to show the scrollbar, you can add a fake scrollbar. If you are familiar with some of the js library which use in RIA. Like in jquery/dojo some of the select is editable, because it is a combination of textbox + select or it can also be a textbox + div.

As an example, see it here a JavaScript that make select like editable.

You can copy an iterator to a new list like this:

Iterator<String> iter = list.iterator();
List<String> copy = new ArrayList<String>();
while (iter.hasNext())
    copy.add(iter.next());

That's assuming that the list contains strings. There really isn't a faster way to recreate a list from an iterator, you're stuck with traversing it by hand and copying each element to a new list of the appropriate type.

EDIT :

Here's a generic method for copying an iterator to a new list in a type-safe way:

public static <T> List<T> copyIterator(Iterator<T> iter) {
    List<T> copy = new ArrayList<T>();
    while (iter.hasNext())
        copy.add(iter.next());
    return copy;
}

Use it like this:

List<String> list = Arrays.asList("1", "2", "3");
Iterator<String> iter = list.iterator();
List<String> copy = copyIterator(iter);
System.out.println(copy);
> [1, 2, 3]

I had the same problem, none of the solutions worked for me, Finally I removed the System.Web.MVC and added again Then everything was back to normal and my problem solved.

Here's the other one, particularly useful to convert the multiple columns to string instead of just single column:

In [76]: import numpy as np
In [77]: import pandas as pd
In [78]: df = pd.DataFrame({
    ...:     'A': [20, 30.0, np.nan],
    ...:     'B': ["a45a", "a3", "b1"],
    ...:     'C': [10, 5, np.nan]})
    ...: 

In [79]: df.dtypes ## Current datatype
Out[79]: 
A    float64
B     object
C    float64
dtype: object

## Multiple columns string conversion
In [80]: df[["A", "C"]] = df[["A", "C"]].astype(str) 

In [81]: df.dtypes ## Updated datatype after string conversion
Out[81]: 
A    object
B    object
C    object
dtype: object

if You are using browser it default always works on get, u can work with postman tool,otherwise u can change it to getmapping.hope this will works

Have been fighting this all morning and now have it solved and why it happened. Posting with the hope it helps others

I installed the Krypton.Toolkit which added the tools to the Visual studio toolbox automatically. I then added the tools to the designer, which automatically added the dll to the projrect references, however the toolkit was marked as CopyLocal=false

I built an installer, using all dlls in the release build folder (of course the above dll wasn't there).

Setting copylocal=true, then rebuilding the installer, everything worked fine.

Adding this answer for completeness, though it's only usable under certain conditions.

If you have very large lists, removing from the end of the list avoids CPython internals having to memmove, for situations where you can re-order the list. It gives a performance gain to remove from the end of the list, since it won't need to memmove every item after the one your removing - back one step ⁽¹⁾.
For one-off removals the performance difference may be acceptable, but if you have a large list and need to remove many items - you will likely notice a performance hit.

Although admittedly, in these cases, doing a full list search is likely to be a performance bottleneck too, unless items are mostly at the front of the list.

This method can be used for more efficient removal,
as long as re-ordering the list is acceptable. ⁽²⁾

def remove_unordered(ls, item):
    i = ls.index(item)
    ls[-1], ls[i] = ls[i], ls[-1]
    ls.pop()

You may want to avoid raising an error when the item isn't in the list.

def remove_unordered_test(ls, item):
    try:
        i = ls.index(item)
    except ValueError:
        return False
    ls[-1], ls[i] = ls[i], ls[-1]
    ls.pop()
    return True

1. While I tested this with CPython, its quite likely most/all other Python implementations use an array to store lists internally. So unless they use a sophisticated data structure designed for efficient list re-sizing, they likely have the same performance characteristic.

A simple way to test this, compare the speed difference from removing from the front of the list with removing the last element:

python -m timeit 'a = [0] * 100000' 'while a: a.remove(0)'

With:

python -m timeit 'a = [0] * 100000' 'while a: a.pop()'

(gives an order of magnitude speed difference where the second example is faster with CPython and PyPy).

2. In this case you might consider using a set, especially if the list isn't meant to store duplicates.
   In practice though you may need to store mutable data which can't be added to a set. Also check on btree's if the data can be ordered.

If you refer the official angular docs

https://angular.io/guide/attribute-directives

There are three kinds of directives in Angular:

1. Components—directives with a template.
2. Structural directives—change the DOM layout by adding and removing DOM elements. e.g *ngIf
3. Attribute directives—change the appearance or behavior of an element, component, or another directive. e.g [ngClass].

As the Application grows we find difficulty in maintaining all these codes. For reusability purpose, we separate our logic in smart components and dumb components and we use directives (structural or attribute) to make changes in the DOM.

As the other have mentioned, the load event does not bubble. Instead you can manually trigger a load-like event with a custom event:

$('#item').on('namespace/onload', handleOnload).trigger('namespace/onload')

If your element is already listening to a change event:

$('#item').on('change', handleChange).trigger('change')

I find this works well. Though, I stick to custom events to be more explicit and avoid side effects.

Since this is a common piece of functionality it's a good idea to write a directive for this. In fact, someone already did that and open sourced it. I used editablespan library in one of my projects and it worked perfectly, highly recommended.

You can use obj.constructor.name to check the "class" of an object https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name#Function_names_in_classes

For Example

var error = new Error("ValidationError");
console.log(error.constructor.name);

The above line will log "Error" which is the class name of the object. This could be used with any classes in javascript, if the class is not using a property that goes by the name "name"

Every method (other than a constructor) must have a return type.

public double diameter(){...

I use div instead of tables and am able to target classes within the main class, as below:

CSS

.main {
    .width: 800px;
    .margin: 0 auto;
    .text-align: center;
}
.main .table {
    width: 80%;
}
.main .row {
   / ***something ***/
}
.main .column {
    font-size: 14px;
    display: inline-block;
}
.main .left {
    width: 140px;
    margin-right: 5px;
    font-size: 12px;
}
.main .right {
    width: auto;
    margin-right: 20px;
    color: #fff;
    font-size: 13px;
    font-weight: normal;
}

HTML

<div class="main">
    <div class="table">
        <div class="row">
            <div class="column left">Swing Over Bed</div>
            <div class="column right">650mm</div>
            <div class="column left">Swing In Gap</div>
            <div class="column right">800mm</div>
        </div>
    </div>
</div>

If you want to style a particular "cell" exclusively you can use another sub-class or the id of the div e.g:

.main #red { color: red; }

<div class="main">
    <div class="table">
        <div class="row">
            <div id="red" class="column left">Swing Over Bed</div>
            <div class="column right">650mm</div>
            <div class="column left">Swing In Gap</div>
            <div class="column right">800mm</div>
        </div>
    </div>
</div>

If you don't care about formatting and you just need some quick date, you can use this:

import time
print(time.ctime())

I use a function to store cookies with a custom expire time in days:

// use it like: writeCookie("mycookie", "1", 30)
// this will set a cookie for 30 days since now
function writeCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else var expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

I just found this when googling to solve the same problem, and had to make a minor change to the solution to make it work in my situation, as I had 2 similar substrings, "Sun" and "Sunstruck" to search for. The offered solution was locating the wrong entry when searching for "Sun". Data in column B

I added another column C, formulaes C1=" "&B1&" " and changed the search to =COUNTIF(B1:B10,"* "&A1&" *")>0, the extra column to allow finding the first of last entry in the concatenated string.

Send params from View to an other View, from Sender View to Receiver View use viewParam and includeViewParams=true

In Sender

1. Declare params to be sent. We can send String, Object,…

Sender.xhtml

<f:metadata>
      <f:viewParam name="ID" value="#{senderMB._strID}" />
</f:metadata>

2. We’re going send param ID, it will be included with “includeViewParams=true” in return String of click button event Click button fire senderMB.clickBtnDetail(dto) with dto from senderMB._arrData

Sender.xhtml

<p:dataTable rowIndexVar="index" id="dataTale"value="#{senderMB._arrData}" var="dto">
      <p:commandButton action="#{senderMB.clickBtnDetail(dto)}" value="??" 
      ajax="false"/>
</p:dataTable>

In senderMB.clickBtnDetail(dto) we assign _strID with argument we got from button event (dto), here this is Sender_DTO and assign to senderMB._strID

Sender_MB.java
    public String clickBtnDetail(sender_DTO sender_dto) {
        this._strID = sender_dto.getStrID();
        return "Receiver?faces-redirect=true&includeViewParams=true";
    }

The link when clicked will become http://localhost:8080/my_project/view/Receiver.xhtml?*ID=12345*

In Recever

1. Get viewParam Receiver.xhtml In Receiver we declare f:viewParam to get param from get request (receive), the name of param of receiver must be the same with sender (page)

Receiver.xhtml

<f:metadata><f:viewParam name="ID" value="#{receiver_MB._strID}"/></f:metadata>

It will get param ID from sender View and assign to receiver_MB._strID

2. Use viewParam In Receiver, we want to use this param in sql query before the page render, so that we use preRenderView event. We are not going to use constructor because constructor will be invoked before viewParam is received So that we add

Receiver.xhtml

<f:event listener="#{receiver_MB.preRenderView}" type="preRenderView" />

into f:metadata tag

Receiver.xhtml

<f:metadata>
<f:viewParam name="ID" value="#{receiver_MB._strID}" />
<f:event listener="#{receiver_MB.preRenderView}"
            type="preRenderView" />
</f:metadata>

Now we want to use this param in our read database method, it is available to use

Receiver_MB.java
public void preRenderView(ComponentSystemEvent event) throws Exception {
        if (FacesContext.getCurrentInstance().isPostback()) {
            return;
        }
        readFromDatabase();
    }
private void readFromDatabase() {
//use _strID to read and set property   
}

The approach you're looking for is FillDown. Another way so you don't have to kick your head off every time is to store formulas in an array of strings. Combining them gives you a powerful method of inputting formulas by the multitude. Code follows:

Sub FillDown()

    Dim strFormulas(1 To 3) As Variant

    With ThisWorkbook.Sheets("Sheet1")
        strFormulas(1) = "=SUM(A2:B2)"
        strFormulas(2) = "=PRODUCT(A2:B2)"
        strFormulas(3) = "=A2/B2"

        .Range("C2:E2").Formula = strFormulas
        .Range("C2:E11").FillDown
    End With

End Sub

Screenshots:

Result as of line: .Range("C2:E2").Formula = strFormulas:

Result as of line: .Range("C2:E11").FillDown:

Of course, you can make it dynamic by storing the last row into a variable and turning it to something like .Range("C2:E" & LRow).FillDown, much like what you did.

Hope this helps!

I think you just need;

List<string> list = new List<string>();
list.Add("hai");

There is a difference between

List<string> list; 

and

List<string> list = new List<string>();

When you didn't use new keyword in this case, your list didn't initialized. And when you try to add it hai, obviously you get an error.

Given an instance of the struct, you set the values.

    student thisStudent;
    Console.WriteLine("Please enter StudentId, StudentName, CourseName, Date-Of-Birth");
    thisStudent.s_id = int.Parse(Console.ReadLine());
    thisStudent.s_name = Console.ReadLine();
    thisStudent.c_name = Console.ReadLine();
    thisStudent.s_dob = Console.ReadLine();

Note this code is incredibly fragile, since we aren't checking the input from the user at all. And you aren't clear to the user that you expect each data point to be entered on a separate line.

You can download the source from here(Display PDF file inside my android application)

Add this dependency in your gradle file:

compile 'com.github.barteksc:android-pdf-viewer:2.0.3'

activity_main.xml

<RelativeLayout android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    xmlns:android="http://schemas.android.com/apk/res/android" >

    <TextView
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:background="@color/colorPrimaryDark"
        android:text="View PDF"
        android:textColor="#ffffff"
        android:id="@+id/tv_header"
        android:textSize="18dp"
        android:gravity="center"></TextView>

    <com.github.barteksc.pdfviewer.PDFView
        android:id="@+id/pdfView"
        android:layout_below="@+id/tv_header"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>


    </RelativeLayout>

MainActivity.java

package pdfviewer.pdfviewer;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import com.github.barteksc.pdfviewer.PDFView;
import com.github.barteksc.pdfviewer.listener.OnLoadCompleteListener;
import com.github.barteksc.pdfviewer.listener.OnPageChangeListener;
import com.github.barteksc.pdfviewer.scroll.DefaultScrollHandle;
import com.shockwave.pdfium.PdfDocument;

import java.util.List;

public class MainActivity extends Activity implements OnPageChangeListener,OnLoadCompleteListener{
    private static final String TAG = MainActivity.class.getSimpleName();
    public static final String SAMPLE_FILE = "android_tutorial.pdf";
    PDFView pdfView;
    Integer pageNumber = 0;
    String pdfFileName;

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


        pdfView= (PDFView)findViewById(R.id.pdfView);
        displayFromAsset(SAMPLE_FILE);
    }

    private void displayFromAsset(String assetFileName) {
        pdfFileName = assetFileName;

        pdfView.fromAsset(SAMPLE_FILE)
                .defaultPage(pageNumber)
                .enableSwipe(true)

                .swipeHorizontal(false)
                .onPageChange(this)
                .enableAnnotationRendering(true)
                .onLoad(this)
                .scrollHandle(new DefaultScrollHandle(this))
                .load();
    }


    @Override
    public void onPageChanged(int page, int pageCount) {
        pageNumber = page;
        setTitle(String.format("%s %s / %s", pdfFileName, page + 1, pageCount));
    }


    @Override
    public void loadComplete(int nbPages) {
        PdfDocument.Meta meta = pdfView.getDocumentMeta();
        printBookmarksTree(pdfView.getTableOfContents(), "-");

    }

    public void printBookmarksTree(List<PdfDocument.Bookmark> tree, String sep) {
        for (PdfDocument.Bookmark b : tree) {

            Log.e(TAG, String.format("%s %s, p %d", sep, b.getTitle(), b.getPageIdx()));

            if (b.hasChildren()) {
                printBookmarksTree(b.getChildren(), sep + "-");
            }
        }
    }

}

at -l to list jobs, which gives return like this:

age2%> at -l
11      2014-10-21 10:11 a hoppent
10      2014-10-19 13:28 a hoppent

atrm 10 kills job 10

Or so my sysadmin told me, and it

No there isn't and it's probably not there, because there are very few valid uses for it. I would think twice before using it. Also, it is indeed easy to create yourself.

Please refer to this discussion about why it's even in .NET.

I guess UnsupportedOperationException comes close, although it doesn't say the operation is just not implemented, but unsupported even. That could imply no valid implementation is possible. Why would the operation be unsupported? Should it even be there? Interface segregation or Liskov substitution issues maybe?

If it's work in progress I'd go for ToBeImplementedException, but I've never caught myself defining a concrete method and then leave it for so long it makes it into production and there would be a need for such an exception.

If you already have the back button in your "Settings" view controller and you want to change the back button color on the "Payment Information" view controller to something else, you can do it inside "Settings" view controller's prepare for segue like this:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
    if segue.identifier == "YourPaymentInformationSegue"
    {
        //Make the back button for "Payment Information" gray:
        self.navigationItem.backBarButtonItem?.tintColor = UIColor.gray               
    }
}

I have wasted 1.5 working days on this error and in the end a coworker solved the issue by replacing User Id by Uid and password by Pwd. The updated connection string for .Net was the error for me

The submit() function is there to make life easier. You can use it on any element inside of form tags to submit that form.

You can also search for the submit button and use click().

So the only difference is click() has to be done on the submit button and submit() can be done on any form element.

It's up to you.

http://docs.seleniumhq.org/docs/03_webdriver.jsp#user-input-filling-in-forms

Github Enterprise Solution

HTTPS_DOMAIN=https://git.your-company.com
ORGANISATION=org
REPO_NAME=my-amazing-library
FILE_PATH=path/to/some/file
BRANCH=develop
GITHUB_PERSONAL_ACCESS_TOKEN=<your-access-token>

URL="${HTTPS_DOMAIN}/raw/${ORGANISATION}/${REPO_NAME}/${BRANCH}/${FILE_PATH}"

curl -H "Authorization: token ${GITHUB_PERSONAL_ACCESS_TOKEN}" ${URL} > "${FILE_PATH}"

See in simple words : Dataware --> Huge data using for Analytical/storage/ copy and Analysis . Database --> CRUD operation with Frequently used data .

Dataware house is Kind of storage which u are not using on daily basis & Database is something which your dealing frequently .

Eg. If we are asking statement of bank then it gives us for last 3/4/6/more months bcoz it is in database. If you want more than that it stores on Dataware house.

You can do something like this in you getJsonResponse function -

jData, err := json.Marshal(Data)
if err != nil {
    // handle error
}
w.Header().Set("Content-Type", "application/json")
w.Write(jData)

Try using ZoomView for zooming any other view.

http://code.google.com/p/android-zoom-view/ it's easy, free and fun to use!

Type the values in single cells, because google spreadsheet cant handle duration formats at all, in any way shape or form. Or you have to learn to make scripts and graduate as a chopper pilot. that is also a option.

Using Ctrl+Shift+R to refresh was nice but didn't get everything I needed. still some things wouldn't refresh, such as data stored in js and css. found a solution: a toolbar of google for chrome web developers. After you install the toolbar select options and "reset page".

There's no difference, == is a synonym for = (for the C/C++ people, I assume). See here, for example.

You could double-check just to be really sure or just for your interest by looking at the bash source code, should be somewhere in the parsing code there, but I couldn't find it straightaway.

One way to do this is by stashing you local changes and pulling from the remote repo. In this way, you will not lose your local files as the files will go to the stash.

git add -A
git stash
git pull

You can check your local stashed files using this command - git stash list

Bash:

 find -type f -printf "%T@ %p \n" \
     | sort  \
     | tail -n 1  \
     | sed -r "s/^\S+\s//;s/\s*$//" \
     | xargs -iSTR cp STR newestfile

where "newestfile" will become the newestfile

alternatively, you could do newdir/STR or just newdir

Breakdown:

1. list all files in {time} {file} format.
2. sort them by time
3. get the last one
4. cut off the time, and whitespace from the start/end
5. copy resulting value

Important

After running this once, the newest file will be whatever you just copied :p ( assuming they're both in the same search scope that is ). So you may have to adjust which filenumber you copy if you want this to work more than once.

You may want to take your argument a step further and talk about design patterns - and you can find out why he'd want to bother trying to inherit from multiple classes in c# if he even could

SELECT convert(datetime, '23/07/2009', 103)

for i in range(len(somelist) - 1, -1, -1):
    if some_condition(somelist, i):
        del somelist[i]

You need to go backwards otherwise it's a bit like sawing off the tree-branch that you are sitting on :-)

Python 2 users: replace range by xrange to avoid creating a hardcoded list

I know some things have changed in AC 2010. However, the old-fashioned ADODB is, as far as I know, the best way to go in VBA. An Example:

Dim cn As ADODB.Connection
Dim cmd As ADODB.Command
Dim prm As ADODB.Parameter
Dim rs As ADODB.Recordset
Dim colReturn As New Collection

Dim SQL As String
SQL = _
    "SELECT c.ClientID, c.LastName, c.FirstName, c.MI, c.DOB, c.SSN, " & _
    "c.RaceID, c.EthnicityID, c.GenderID, c.Deleted, c.RecordDate " & _
    "FROM tblClient AS c " & _
    "WHERE c.ClientID = @ClientID"

Set cn = New ADODB.Connection
Set cmd = New ADODB.Command

With cn
    .Provider = DataConnection.MyADOProvider
    .ConnectionString = DataConnection.MyADOConnectionString
    .Open
End With

With cmd
    .CommandText = SQL
    .ActiveConnection = cn
    Set prm = .CreateParameter("@ClientID", adInteger, adParamInput, , mlngClientID)
    .Parameters.Append prm
End With

Set rs = cmd.Execute

With rs
    If Not .EOF Then
        Do Until .EOF
            mstrLastName = Nz(!LastName, "")
            mstrFirstName = Nz(!FirstName, "")
            mstrMI = Nz(!MI, "")
            mdDOB = !DOB
            mstrSSN = Nz(!SSN, "")
            mlngRaceID = Nz(!RaceID, -1)
            mlngEthnicityID = Nz(!EthnicityID, -1)
            mlngGenderID = Nz(!GenderID, -1)
            mbooDeleted = Deleted
            mdRecordDate = Nz(!RecordDate, "")

            .MoveNext
        Loop
    End If
    .Close
End With

cn.Close

Set rs = Nothing
Set cn = Nothing

Do you ever store a null value? If not, you can just do:

Foo value = map.get(key);
if (value != null) {
    ...
} else {
    // No such key
}

Otherwise, you could just check for existence if you get a null value returned:

Foo value = map.get(key);
if (value != null) {
    ...
} else {
    // Key might be present...
    if (map.containsKey(key)) {
       // Okay, there's a key but the value is null
    } else {
       // Definitely no such key
    }
}

Think of it as a placeholder. It can be quite useful when you have code that follows a certain pattern but need not be tied to any particular functionality.

For example, consider the Enumerable.Select extension method.

• The pattern is: for every item in a sequence, select some value from that item (e.g., a property) and create a new sequence consisting of these values.
• The placeholder is: some selector function that actually gets the values for the sequence described above.

This method takes a Func<T, TResult> instead of any concrete function. This allows it to be used in any context where the above pattern applies.

So for example, say I have a List<Person> and I want just the name of every person in the list. I can do this:

var names = people.Select(p => p.Name);

Or say I want the age of every person:

var ages = people.Select(p => p.Age);

Right away, you can see how I was able to leverage the same code representing a pattern (with Select) with two different functions (p => p.Name and p => p.Age).

The alternative would be to write a different version of Select every time you wanted to scan a sequence for a different kind of value. So to achieve the same effect as above, I would need:

// Presumably, the code inside these two methods would look almost identical;
// the only difference would be the part that actually selects a value
// based on a Person.
var names = GetPersonNames(people);
var ages = GetPersonAges(people);

With a delegate acting as placeholder, I free myself from having to write out the same pattern over and over in cases like this.

In cordova 6.2.0

cd cordova/ #change to root cordova folder
platforms/android/cordova/clean #clean if you want
cordova build android --release -- --keystore="/path/to/keystore" --storePassword=password --alias=alias_name #password will be prompted if you have any

Previous answer:

According to cordova 5.0.0

{
     "android": {
         "release": {
             "keystore": "app-release-key.keystore",
             "alias": "alias_name"
         }
     }
 }

and run ./build --release --buildConfig build.json from directory platforms/android/cordova/

keystore file location is relative to platforms/android/cordova/, so in above configuration .keystore file and build.json are in same directory.

keytool -genkey -v -keystore app-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000

As mentioned in other answers, the ability to add implementation to an interface was added in order to provide backward compatibility in the Collections framework. I would argue that providing backward compatibility is potentially the only good reason for adding implementation to an interface.

Otherwise, if you add implementation to an interface, you are breaking the fundamental law for why interfaces were added in the first place. Java is a single inheritance language, unlike C++ which allows for multiple inheritance. Interfaces provide the typing benefits that come with a language that supports multiple inheritance without introducing the problems that come with multiple inheritance.

More specifically, Java only allows single inheritance of an implementation, but it does allow multiple inheritance of interfaces. For example, the following is valid Java code:

class MyObject extends String implements Runnable, Comparable { ... }

MyObject inherits only one implementation, but it inherits three contracts.

Java passed on multiple inheritance of implementation because multiple inheritance of implementation comes with a host of thorny problems, which are outside the scope of this answer. Interfaces were added to allow multiple inheritance of contracts (aka interfaces) without the problems of multiple inheritance of implementation.

To support my point, here is a quote from Ken Arnold and James Gosling from the book The Java Programming Language, 4th edition:

Single inheritance precludes some useful and correct designs. The problems of multiple inheritance arise from multiple inheritance of implementation, but in many cases multiple inheritance is used to inherit a number of abstract contracts and perhaps one concrete implementation. Providing a means to inherit an abstract contract without inheriting an implementation allows the typing benefits of multiple inheritance without the problems of multiple implementation inheritance. The inheritance of an abstract contract is termed interface inheritance. The Java programming language supports interface inheritance by allowing you to declare an interface type

tl;dr: Do not use unique_ptr's like that.

I believe you're making a terrible mess - for those who will need to read your code, maintain it, and probably those who need to use it.

1. Only take unique_ptr constructor parameters if you have publicly-exposed unique_ptr members.

unique_ptrs wrap raw pointers for ownership & lifetime management. They're great for localized use - not good, nor in fact intended, for interfacing. Wanna interface? Document your new class as ownership-taking, and let it get the raw resource; or perhaps, in the case of pointers, use owner<T*> as suggested in the Core Guidelines.

Only if the purpose of your class is to hold unique_ptr's, and have others use those unique_ptr's as such - only then is it reasonable for your constructor or methods to take them.

2. Don't expose the fact that you use unique_ptrs internally

Using unique_ptr for list nodes is very much an implementation detail. Actually, even the fact that you're letting users of your list-like mechanism just use the bare list node directly - constructing it themselves and giving it to you - is not a good idea IMHO. I should not need to form a new list-node-which-is-also-a-list to add something to your list - I should just pass the payload - by value, by const lvalue ref and/or by rvalue ref. Then you deal with it. And for splicing lists - again, value, const lvalue and/or rvalue.

You could use np.array(list(result.items()), dtype=dtype):

import numpy as np
result = {0: 1.1181753789488595, 1: 0.5566080288678394, 2: 0.4718269778030734, 3: 0.48716683119447185, 4: 1.0, 5: 0.1395076201641266, 6: 0.20941558441558442}

names = ['id','data']
formats = ['f8','f8']
dtype = dict(names = names, formats=formats)
array = np.array(list(result.items()), dtype=dtype)

print(repr(array))

yields

array([(0.0, 1.1181753789488595), (1.0, 0.5566080288678394),
       (2.0, 0.4718269778030734), (3.0, 0.48716683119447185), (4.0, 1.0),
       (5.0, 0.1395076201641266), (6.0, 0.20941558441558442)], 
      dtype=[('id', '<f8'), ('data', '<f8')])

If you don't want to create the intermediate list of tuples, list(result.items()), then you could instead use np.fromiter:

In Python2:

array = np.fromiter(result.iteritems(), dtype=dtype, count=len(result))

In Python3:

array = np.fromiter(result.items(), dtype=dtype, count=len(result))

Why using the list [key,val] does not work:

By the way, your attempt,

numpy.array([[key,val] for (key,val) in result.iteritems()],dtype)

was very close to working. If you change the list [key, val] to the tuple (key, val), then it would have worked. Of course,

numpy.array([(key,val) for (key,val) in result.iteritems()], dtype)

is the same thing as

numpy.array(result.items(), dtype)

in Python2, or

numpy.array(list(result.items()), dtype)

in Python3.

np.array treats lists differently than tuples: Robert Kern explains:

As a rule, tuples are considered "scalar" records and lists are recursed upon. This rule helps numpy.array() figure out which sequences are records and which are other sequences to be recursed upon; i.e. which sequences create another dimension and which are the atomic elements.

Since (0.0, 1.1181753789488595) is considered one of those atomic elements, it should be a tuple, not a list.

I've tried these and other solutions offered, which don't actually work, but I seem to have found a way to do this, and that is to remove the bullet and use the :before pseudo-element to put a Unicode bullet in its place. Then you can adjust the the space between the list item and bullet. You have to use Unicode to insert an entity into the content property of :before or :after - HTML entities don't work.

There's some sizing and positioning code needed too, because the Unicode bullet by default displays the size of a pinhead. So the bullet has to be enlarged and absolutely positioned to get it into place. Note the use of ems for the bullet's sizing and positioning so that the bullet's relationship to the list item stays constant when your change the font size of the list item. The comments in the code explain how it all works. If you want to use a different entity, you can find a list of the Unicode entities here:

http://www.evotech.net/blog/2007/04/named-html-entities-in-numeric-order/

Use a value from the far right column (octal) from the table on this page - you just need the \ and number. You should be able to trash everying except the content property from the :before rule when using the other entities as they seem to display at a useable size. Email me: charles at stylinwithcss dot com with any thoughts/comments. I tested it Firefox, Chrome and Safari and it works nicely.

    body {
      font-family:"Trebuchet MS", sans-serif;
      }
    li  {
      font-size:14px;        /* set font size of list item and bullet here */
      list-style-type:none; /* removes default bullet */
      position:relative;      /* positioning context for bullet */
      }
      li:before  {
        content:"\2219";    /* escaped unicode character */
        font-size:2.5em;    /* the default unicode bullet size is very small */
        line-height:0;        /* kills huge line height on resized bullet */
        position:absolute;  /* position bullet relative to list item */
        top:.23em;           /* vertical align bullet position relative to list item */
        left:-.5em;            /* position the bullet L- R relative to list item */
       }

I had to develop a solution to convert HTML to PDF, and vertically center the text in table cells, but nothing worked except inputting the plain <br>

So, thinking outside of the box, I have changed the vertical size by adjusting the font-size (in pt).

<font style="font-size: 4pt"><br></font>

Use the break statement: http://docs.python.org/reference/simple_stmts.html#break

If I understand correctly what you want to do, you can create your figure and set the size of the window. Afterwards, you can save your graph with the matplotlib toolbox button. Here an example:

from pylab import get_current_fig_manager,show,plt,imshow

plt.Figure()
thismanager = get_current_fig_manager()
thismanager.window.wm_geometry("500x500+0+0") 
#in this case 500 is the size (in pixel) of the figure window. In your case you want to maximise to the size of your screen or whatever

imshow(your_data)
show()

The difference between .dylib and .so on mac os x is how they are compiled. For .so files you use -shared and for .dylib you use -dynamiclib. Both .so and .dylib are interchangeable as dynamic library files and either have a type as DYLIB or BUNDLE. Heres the readout for different files showing this.

libtriangle.dylib:
Mach header
      magic cputype cpusubtype  caps    filetype ncmds sizeofcmds      flags
MH_MAGIC_64  X86_64        ALL  0x00       DYLIB    17       1368   NOUNDEFS DYLDLINK TWOLEVEL NO_REEXPORTED_DYLIBS



libtriangle.so:
Mach header
      magic cputype cpusubtype  caps    filetype ncmds sizeofcmds      flags
MH_MAGIC_64  X86_64        ALL  0x00       DYLIB    17       1256   NOUNDEFS DYLDLINK TWOLEVEL NO_REEXPORTED_DYLIBS

triangle.so:
Mach header
      magic cputype cpusubtype  caps    filetype ncmds sizeofcmds      flags
MH_MAGIC_64  X86_64        ALL  0x00      BUNDLE    16       1696   NOUNDEFS DYLDLINK TWOLEVEL

The reason the two are equivalent on Mac OS X is for backwards compatibility with other UNIX OS programs that compile to the .so file type.

Compilation notes: whether you compile a .so file or a .dylib file you need to insert the correct path into the dynamic library during the linking step. You do this by adding -install_name and the file path to the linking command. If you dont do this you will run into the problem seen in this post: Mac Dynamic Library Craziness (May be Fortran Only).

Android Studio automatically creates a Gradle wrapper in the root of your project, which is how it invokes Gradle. The wrapper is basically a script that calls through to the actual Gradle binary and allows you to keep Gradle up to date, which makes using version control easier. To run a Gradle command, you can simply use the gradlew script found in the root of your project (or gradlew.bat on Windows) followed by the name of the task you want to run. For instance, to build a debug version of your Android application, you can run ./gradlew assembleDebug from the root of your repository. In a default project setup, the resulting apk can then be found in app/build/outputs/apk/app-debug.apk. On a *nix machine, you can also just run find . -name '*.apk' to find it, if it's not there.

NULL == NULL -> false (at least in DBMSs)

So you wouldn't be able to retrieve any relationships using a NULL value even with additional columns with real values.

You could use the CSS calc parameter to calculate the height dynamically like so:

.dynamic-height {_x000D_
   color: #000;_x000D_
   font-size: 12px;_x000D_
   margin-top: calc(100% - 10px);_x000D_
   text-align: left;_x000D_
}

<div class='dynamic-height'>_x000D_
    <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem.</p>_x000D_
</div>

C-style casts conflate const_cast, static_cast, and reinterpret_cast.

I wish C++ didn't have C-style casts. C++ casts stand out properly (as they should; casts are normally indicative of doing something bad) and properly distinguish between the different kinds of conversion that casts perform. They also permit similar-looking functions to be written, e.g. boost::lexical_cast, which is quite nice from a consistency perspective.

A good example of using ids of other rows in the same table as foreign keys is nested lists.

Deleting a row that has children (i.e., rows, which refer to parent's id), which also have children (i.e., referencing ids of children) will delete a cascade of rows.

This will save a lot of pain (and a lot of code of what to do with orphans - i.e., rows, that refer to non-existing ids).