I think there can be a handier way to do it. The following class will set a custom type face for all your the components of your application (with a setting per class).

/**
 * Base Activity of our app hierarchy.
 * @author SNI
 */
public class BaseActivity extends Activity {

    private static final String FONT_LOG_CAT_TAG = "FONT";
    private static final boolean ENABLE_FONT_LOGGING = false;

    private Typeface helloTypeface;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        helloTypeface = Typeface.createFromAsset(getAssets(), "fonts/<your type face in assets/fonts folder>.ttf");
    }

    @Override
    public View onCreateView(String name, Context context, AttributeSet attrs) {
        View view = super.onCreateView(name, context, attrs);
        return setCustomTypeFaceIfNeeded(name, attrs, view);
    }

    @Override
    public View onCreateView(View parent, String name, Context context, AttributeSet attrs) {
        View view = super.onCreateView(parent, name, context, attrs);
        return setCustomTypeFaceIfNeeded(name, attrs, view);
    }

    protected View setCustomTypeFaceIfNeeded(String name, AttributeSet attrs, View view) {
        View result = null;
        if ("TextView".equals(name)) {
            result = new TextView(this, attrs);
            ((TextView) result).setTypeface(helloTypeface);
        }

        if ("EditText".equals(name)) {
            result = new EditText(this, attrs);
            ((EditText) result).setTypeface(helloTypeface);
        }

        if ("Button".equals(name)) {
            result = new Button(this, attrs);
            ((Button) result).setTypeface(helloTypeface);
        }

        if (result == null) {
            return view;
        } else {
            if (ENABLE_FONT_LOGGING) {
                Log.v(FONT_LOG_CAT_TAG, "A type face was set on " + result.getId());
            }
            return result;
        }
    }

}

Try this

{% if var in ['foo', 'bar', 'beer'] %}
    ...
{% endif %}

Assume you want to replace symbols which are not digits or letters (and _ character as @Guffa correctly pointed):

string input = "Hello@Hello&Hello(Hello)";
string result = Regex.Replace(input, @"[^\w\d]", ",");
// Hello,Hello,Hello,Hello,

You can add another symbols which should not be replaced. E.g. if you want white space symbols to stay, then just add \s to pattern: \[^\w\d\s]

As @NickT said, there's no python3[4-6] in the default yum repos in Amazon Linux 2, as of today it uses 3.7 and looking at all answers here we can say it will be changed over time.

I was looking for python3.6 on Amazon Linux 2 but amazon-linux-extras shows a lot of options but no python at all. in fact, you can try to find the version you know in epel repo:

sudo amazon-linux-extras install epel

yum search python | grep "^python3..x8"

python34.x86_64 : Version 3 of the Python programming language aka Python 3000
python36.x86_64 : Interpreter of the Python programming language

There is now a php artisan view:clear command for this task since Laravel 5.1

You are testing against the string minus the last character:

>>> '"xxx"'[:-1]
'"xxx'

Note how the last character, the ", is not part of the output of the slice.

I think you wanted just to test against the last character; use [-1:] to slice for just the last element.

However, there is no need to slice here; just use str.startswith() and str.endswith() directly.

My solution is as follows

var request;
...
'services': {
  'GetAddressBookData': function() {
    //This is the primary service that loads all addressbook records 
    request = $.ajax({
      type: "POST",
      url: "Default.aspx/GetAddressBook",
      contentType: "application/json;",
      dataType: "json"
    });
  },

  ...

  'apps': {
    'AddressBook': {
      'data': "",
      'Start': function() {
          ...services.GetAddressBookData();
          request.done(function(response) {
            trace("ajax successful");
            ..apps.AddressBook.data = response['d'];
            ...apps.AddressBook.Filter();
          });
          request.fail(function(xhr, textStatus, errorThrown) {
            trace("ajax failed - " + errorThrown);
          });

Worked quite nicely. I've tried a lot of different ways of doing this, but I found this to be the simplest and most reusable. Hope it helps

You have to implement an abstract base class (ABC).

Check python docs

Well, here is a solution if you want the background to be other than a solid black color. We only need to invert the mask and apply it in a background image of the same size and then combine both background and foreground. A pro of this solution is that the background could be anything (even other image).

This example is modified from Hough Circle Transform. First image is the OpenCV logo, second the original mask, third the background + foreground combined.

# http://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_imgproc/py_houghcircles/py_houghcircles.html
import cv2
import numpy as np

# load the image
img = cv2.imread('E:\\FOTOS\\opencv\\opencv_logo.png')
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)

# detect circles
gray = cv2.medianBlur(cv2.cvtColor(img, cv2.COLOR_RGB2GRAY), 5)
circles = cv2.HoughCircles(gray, cv2.HOUGH_GRADIENT, 1, 20, param1=50, param2=50, minRadius=0, maxRadius=0)
circles = np.uint16(np.around(circles))

# draw mask
mask = np.full((img.shape[0], img.shape[1]), 0, dtype=np.uint8)  # mask is only 
for i in circles[0, :]:
    cv2.circle(mask, (i[0], i[1]), i[2], (255, 255, 255), -1)

# get first masked value (foreground)
fg = cv2.bitwise_or(img, img, mask=mask)

# get second masked value (background) mask must be inverted
mask = cv2.bitwise_not(mask)
background = np.full(img.shape, 255, dtype=np.uint8)
bk = cv2.bitwise_or(background, background, mask=mask)

# combine foreground+background
final = cv2.bitwise_or(fg, bk)

Note: It is better to use the opencv methods because they are optimized.

IPython comes with some automatic reloading magic:

%load_ext autoreload
%autoreload 2

It will reload all changed modules every time before executing a new line. The way this works is slightly different than dreload. Some caveats apply, type %autoreload? to see what can go wrong.

If you want to always enable this settings, modify your IPython configuration file ~/.ipython/profile_default/ipython_config.py[1] and appending:

c.InteractiveShellApp.extensions = ['autoreload']     
c.InteractiveShellApp.exec_lines = ['%autoreload 2']

Credit to @Kos via a comment below.

[1] If you don't have the file ~/.ipython/profile_default/ipython_config.py, you need to call ipython profile create first. Or the file may be located at $IPYTHONDIR.

You can use npm shrinkwrap functionality, in order to override any dependency or sub-dependency.

I've just done this in a grunt project of ours. We needed a newer version of connect, since 2.7.3. was causing trouble for us. So I created a file named npm-shrinkwrap.json:

{
  "dependencies": {
    "grunt-contrib-connect": {
      "version": "0.3.0",
      "from": "[email protected]",
      "dependencies": {
        "connect": {
          "version": "2.8.1",
          "from": "connect@~2.7.3"
        }
      }
    }
  }
}

npm should automatically pick it up while doing the install for the project.

(See: https://nodejs.org/en/blog/npm/managing-node-js-dependencies-with-shrinkwrap/)

Complete solution using @TEH-EMPRAH ideas and Generic casting from Cast Object to Generic Type for returning

import annotations.Column;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.sql.SQLException;
import java.util.*;

public class ObjectMapper<T> {

    private Class clazz;
    private Map<String, Field> fields = new HashMap<>();
    Map<String, String> errors = new HashMap<>();

    public DataMapper(Class clazz) {
        this.clazz = clazz;

        List<Field> fieldList = Arrays.asList(clazz.getDeclaredFields());
        for (Field field : fieldList) {
            Column col = field.getAnnotation(Column.class);
            if (col != null) {
                field.setAccessible(true);
                fields.put(col.name(), field);
            }
        }
    }

    public T map(Map<String, Object> row) throws SQLException {
        try {
            T dto = (T) clazz.getConstructor().newInstance();
            for (Map.Entry<String, Object> entity : row.entrySet()) {
                if (entity.getValue() == null) {
                    continue;  // Don't set DBNULL
                }
                String column = entity.getKey();
                Field field = fields.get(column);
                if (field != null) {
                    field.set(dto, convertInstanceOfObject(entity.getValue()));
                }
            }
            return dto;
        } catch (IllegalAccessException | InstantiationException | NoSuchMethodException | InvocationTargetException e) {
            e.printStackTrace();
            throw new SQLException("Problem with data Mapping. See logs.");
        }
    }

    public List<T> map(List<Map<String, Object>> rows) throws SQLException {
        List<T> list = new LinkedList<>();

        for (Map<String, Object> row : rows) {
            list.add(map(row));
        }

        return list;
    }

    private T convertInstanceOfObject(Object o) {
        try {
            return (T) o;
        } catch (ClassCastException e) {
            return null;
        }
    }
}

and then in terms of how it ties in with the database, I have the following:

// connect to database (autocloses)
try (DataConnection conn = ds1.getConnection()) {

    // fetch rows
    List<Map<String, Object>> rows = conn.nativeSelect("SELECT * FROM products");

    // map rows to class
    ObjectMapper<Product> objectMapper = new ObjectMapper<>(Product.class);
    List<Product> products = objectMapper.map(rows);

    // display the rows
    System.out.println(rows);

    // display it as products
    for (Product prod : products) {
        System.out.println(prod);
    }

} catch (Exception e) {
    e.printStackTrace();
}

Right click 'libraries' in the project list, then click add.

Have you tried setting the selection properties of your tableView like this:

tableView.allowsMultipleSelection = NO; tableView.allowsMultipleSelectionDuringEditing = YES; tableView.allowsSelection = NO; tableView.allowsSelectionDuringEditing YES; 

If you want more fine-grain control over when selection is allowed you can override - (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath in your UITableView delegate. The documentation states:

Return Value An index-path object that confirms or alters the selected row. Return an NSIndexPath object other than indexPath if you want another cell to be selected. Return nil if you don't want the row selected. 

You can have this method return nil in cases where you don't want the selection to happen.

Using Bytescout PDF Extractor SDK is a good option. It is cheap and gives plenty of PDF related functionality. One of the answers above points to the dead page Bytescout on GitHub. I am providing a relevant working sample to extract table from PDF. You may use it to export in any format.

Set extractor = CreateObject("Bytescout.PDFExtractor.StructuredExtractor")

extractor.RegistrationName = "demo"
extractor.RegistrationKey = "demo"

' Load sample PDF document
extractor.LoadDocumentFromFile "../../sample3.pdf"

For ipage = 0 To extractor.GetPageCount() - 1 

    ' starting extraction from page #"
    extractor.PrepareStructure ipage

    rowCount = extractor.GetRowCount(ipage)

    For row = 0 To rowCount - 1 
        columnCount = extractor.GetColumnCount(ipage, row)

        For col = 0 To columnCount-1
            WScript.Echo "Cell at page #" +CStr(ipage) + ", row=" & CStr(row) & ", column=" & _
                CStr(col) & vbCRLF & extractor.GetCellValue(ipage, row, col)
        Next
    Next
Next

Many more samples available here: https://github.com/bytescout/pdf-extractor-sdk-samples

for more exactly positioning:

      background-position: bottom 5px right 7px;

In addition to the accepted answer by @Andreas Mueller, just want to add that as @tangy mentioned above:

StratifiedShuffleSplit most closely resembles train_test_split(stratify = y) with added features of:

1. stratify by default
2. by specifying n_splits, it repeatedly splits the data

sort dictionary 'in_dict' by value in decreasing order

sorted_dict = {r: in_dict[r] for r in sorted(in_dict, key=in_dict.get, reverse=True)}

example above

sorted_d = {r: d[r] for r in sorted(d, key=d.get('key3'), reverse=True)}

The package fBasics has a function colStdevs

 require('fBasics')
 set.seed(123)
 colStdevs(matrix(rnorm(1000, mean=10, sd=1), ncol=5))
[1] 0.9431599 0.9959210 0.9648052 1.0246366 1.0351268

What about -mmin?

find /var/www/html/audio -daystart -maxdepth 1 -mmin +59 -type f -name "*.mp3" \
    -exec rm -f {} \;

From man find:

-mmin n
        File's data was last modified n minutes ago.

Also, make sure to test this first!

... -exec echo rm -f '{}' \;
          ^^^^ Add the 'echo' so you just see the commands that are going to get
               run instead of actual trying them first.

NSLocalizedString() reads the value for the key AppleLanguages from the standard user defaults ([NSUserDefaults standardUserDefaults]). It uses that value to choose an appropriate localization among all existing localizations at runtime. When Apple builds the user defaults dictionary at app launch, they look up the preferred language(s) key in the system preferences and copy the value from there. This also explains for example why changing the language settings in OS X has no effect on running apps, only on apps started thereafter. Once copied, the value is not updated just because the settings change. That's why iOS restarts all apps if you change then language.

However, all values of the user defaults dictionary can be overwritten by command line arguments. See NSUserDefaults documentation on the NSArgumentDomain. This even includes those values that are loaded from the app preferences (.plist) file. This is really good to know if you want to change a value just once for testing.

So if you want to change the language just for testing, you probably don't want to alter your code (if you forget to remove this code later on ...), instead tell Xcode to start your app with a command line parameters (e.g. use Spanish localization):

No need to touch your code at all. Just create different schemes for different languages and you can quickly start the app once in one language and once in another one by just switching the scheme.

Change this:

EditText editText = (EditText) findViewById(R.id.label_field);

to this:

EditText editText = (EditText)  v.findViewById(R.id.label_field);

From MySQL docs:

A character set is a set of symbols and encodings. A collation is a set of rules for comparing characters in a character set. Let's make the distinction clear with an example of an imaginary character set.

Suppose that we have an alphabet with four letters: 'A', 'B', 'a', 'b'. We give each letter a number: 'A' = 0, 'B' = 1, 'a' = 2, 'b' = 3. The letter 'A' is a symbol, the number 0 is the encoding for 'A', and the combination of all four letters and their encodings is a character set.

Now, suppose that we want to compare two string values, 'A' and 'B'. The simplest way to do this is to look at the encodings: 0 for 'A' and 1 for 'B'. Because 0 is less than 1, we say 'A' is less than 'B'. Now, what we've just done is apply a collation to our character set. The collation is a set of rules (only one rule in this case): "compare the encodings." We call this simplest of all possible collations a binary collation.

But what if we want to say that the lowercase and uppercase letters are equivalent? Then we would have at least two rules: (1) treat the lowercase letters 'a' and 'b' as equivalent to 'A' and 'B'; (2) then compare the encodings. We call this a case-insensitive collation. It's a little more complex than a binary collation.

In real life, most character sets have many characters: not just 'A' and 'B' but whole alphabets, sometimes multiple alphabets or eastern writing systems with thousands of characters, along with many special symbols and punctuation marks. Also in real life, most collations have many rules: not just case insensitivity but also accent insensitivity (an "accent" is a mark attached to a character as in German 'ö') and multiple-character mappings (such as the rule that 'ö' = 'OE' in one of the two German collations).

As you have mentioned it doesn't change anything.

First, you should redirect both standard input and standard error from the crontab execution like below:

*/2 * * * * /usr/bin/python /home/souza/Documets/Listener/listener.py > /tmp/listener.log 2>&1

Then you can view the file /tmp/listener.log to see if the script executed as you expected.

Second, I guess what you mean by change anything is by watching the files created by your program:

f = file('counter', 'r+w')
json_file = file('json_file_create_server.json', 'r+w')

The crontab job above won't create these file in directory /home/souza/Documets/Listener, as the cron job is not executed in this directory, and you use relative path in the program. So to create this file in directory /home/souza/Documets/Listener, the following cron job will do the trick:

*/2 * * * * cd /home/souza/Documets/Listener && /usr/bin/python listener.py > /tmp/listener.log 2>&1

Change to the working directory and execute the script from there, and then you can view the files created in place.

.my_btn{ 
  font-family:Arial; 
  font-size:10pt; 
  font-weight:normal; 
  height:30px; 
  line-height:30px; 
  width:98px; 
  border:0px;
  background-image:url('../Images/menu_image.png'); 
  cursor:pointer;
}

<asp:Button ID="clickme" runat="server" Text="Click" CssClass="my_btn" />

Just in case somebody else gets in the same situation like me yesterday (2016-06-22) and also does not succeed with the already posted approaches - on Lubuntu 14.04 it worked for me using the following chain of commands:

git clone https://github.com/google/googletest
cd googletest
cmake -DBUILD_SHARED_LIBS=ON .
make
cd googlemock
sudo cp ./libgmock_main.so ./gtest/libgtest.so gtest/libgtest_main.so ./libgmock.so /usr/lib/
sudo ldconfig

Or do the following:

...

  Integer[] integerArray = new Integer[integerList.size()];
  integerList.toArray(integerArray);

  return integerArray;

}

for python language, you can do like this

import pymysql

connection = pymysql.connect(host='localhost',
                             user='root',
                             db='mysql',
                             cursorclass=pymysql.cursors.DictCursor)

with connection.cursor() as cursor:
    cursor.execute('SHOW PROCESSLIST')
    for item in cursor.fetchall():
        if item.get('Time') > 200:
            _id = item.get('Id')
            print('kill %s' % item)
            cursor.execute('kill %s', _id)
    connection.close()

I use this. I think this is the simpliest way to do it:

 textBoxName.Clear();

Maybe the sample is oversimplified, but you don't need the Java stream API here. Just use the Map directly.

 List<String> list1 = id1.get(1); // this will return the list from your map

Use one instance of Random repeatedly

// Somewhat better code...
Random rng = new Random();
for (int i = 0; i < 100; i++)
{
    Console.WriteLine(GenerateDigit(rng));
}
...
static int GenerateDigit(Random rng)
{
    // Assume there'd be more logic here really
    return rng.Next(10);
}

This article takes a look at why randomness causes so many problems, and how to address them. http://csharpindepth.com/Articles/Chapter12/Random.aspx

The next link will bring you to a great tutorial, that helped me a lot!

How to SQLITE in C#

I nearly used everything in that article to create the SQLite database for my own C# Application.

Don't forget to download the SQLite.dll, and add it as a reference to your project. This can be done using NuGet and by adding the dll manually.

After you added the reference, refer to the dll from your code using the following line on top of your class:

using System.Data.SQLite;

You can find the dll's here:

SQLite DLL's

You can find the NuGet way here:

NuGet

Up next is the create script. Creating a database file:

SQLiteConnection.CreateFile("MyDatabase.sqlite");

SQLiteConnection m_dbConnection = new SQLiteConnection("Data Source=MyDatabase.sqlite;Version=3;");
m_dbConnection.Open();

string sql = "create table highscores (name varchar(20), score int)";

SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();

sql = "insert into highscores (name, score) values ('Me', 9001)";

command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();

m_dbConnection.Close();

After you created a create script in C#, I think you might want to add rollback transactions, it is safer and it will keep your database from failing, because the data will be committed at the end in one big piece as an atomic operation to the database and not in little pieces, where it could fail at 5th of 10 queries for example.

Example on how to use transactions:

 using (TransactionScope tran = new TransactionScope())
 {
     //Insert create script here.

     //Indicates that creating the SQLiteDatabase went succesfully, so the database can be committed.
     tran.Complete();
 }

If you are writing a function, which is always preferred, you should propagate the error like this:

function() {
    if some_command; then
        echo worked
    else
        return $?
fi
}

This will propagate the error to the caller, so that he can do things like function && next as expected.

Any decent text editor has a search&replace facility that supports regular expressions.

If however, you have reason to reinvent the wheel in Java, you can do:

Path path = Paths.get("test.txt");
Charset charset = StandardCharsets.UTF_8;

String content = new String(Files.readAllBytes(path), charset);
content = content.replaceAll("foo", "bar");
Files.write(path, content.getBytes(charset));

This only works for Java 7 or newer. If you are stuck on an older Java, you can do:

String content = IOUtils.toString(new FileInputStream(myfile), myencoding);
content = content.replaceAll(myPattern, myReplacement);
IOUtils.write(content, new FileOutputStream(myfile), myencoding);

In this case, you'll need to add error handling and close the streams after you are done with them.

IOUtils is documented at http://commons.apache.org/proper/commons-io/javadocs/api-release/org/apache/commons/io/IOUtils.html

It is now possible to use Qt, QtQuick, and QML with .NET Core, using Qml.Net.

It is highly performant (not "P/Invoke chatty"), fully featured and works across Linux, OS X, and Windows.

Check out my blog post to see how it compares to the other options out there currently.

PS: I'm the author.

If the purpose of this is to create a unique value from the date, here is what I would do

DECLARE @ts TIMESTAMP 
SET @ts = CAST(getdate() AS TIMESTAMP)
SELECT @ts

This gets the date and declares it as a simple timestamp

To get the exact file name from the URI, I would use this method:

<?php
    $file1 =basename("http://localhost/eFEIS/agency_application_form.php?formid=1&task=edit") ;

    //basename($_SERVER['REQUEST_URI']); // Or use this to get the URI dynamically.

    echo $basename = substr($file1, 0, strpos($file1, '?'));
?>

To avoid adding extra divs when clicking on the link multiple times, and avoid problems when using the script to display forms, you could try a variation of @jek's code.

$('a.ajax').live('click', function() {
    var url = this.href;
    var dialog = $("#dialog");
    if ($("#dialog").length == 0) {
        dialog = $('<div id="dialog" style="display:hidden"></div>').appendTo('body');
    } 

    // load remote content
    dialog.load(
            url,
            {},
            function(responseText, textStatus, XMLHttpRequest) {
                dialog.dialog();
            }
        );
    //prevent the browser to follow the link
    return false;
});`

You are doing

Object o = prestListView.getItemAtPosition(position);
String str=(String)o;//As you are using Default String Adapter

The o that you get back is not a String, but a prestationEco so you get a CCE when doing the (String)o

The guarantees the standard gives you go like this:

1 == sizeof(char) <= sizeof(short) <= sizeof (int) <= sizeof(long) <= sizeof(long long)

So it's perfectly valid for sizeof (int) and sizeof (long) to be equal, and many platforms choose to go with this approach. You will find some platforms where int is 32 bits, long is 64 bits, and long long is 128 bits, but it seems very common for sizeof (long) to be 4.

(Note that long long is recognized in C from C99 onwards, but was normally implemented as an extension in C++ prior to C++11.)

Latest stuff with getMapAsync instead of the deprecated one.

1. check manifest for

<meta-data android:name="com.google.android.geo.API_KEY" android:value="xxxxxxxxxxxxxxxxxxxxxxxxx"/>

You can get the API Key for your app by registering your app at Google Cloud Console. Register your app as Native Android App

2. in your fragment layout .xml add FrameLayout(not fragment):

                  <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="250dp"
                android:layout_weight="2"
                android:name="com.google.android.gms.maps.SupportMapFragment"
                android:id="@+id/mapwhere" />

or whatever height you want

3. In onCreateView in your fragment

    private SupportMapFragment mSupportMapFragment; 

    mSupportMapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.mapwhere);
    if (mSupportMapFragment == null) {
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        mSupportMapFragment = SupportMapFragment.newInstance();
        fragmentTransaction.replace(R.id.mapwhere, mSupportMapFragment).commit();
    }

    if (mSupportMapFragment != null)
    {
        mSupportMapFragment.getMapAsync(new OnMapReadyCallback() {
            @Override public void onMapReady(GoogleMap googleMap) {
                if (googleMap != null) {

                    googleMap.getUiSettings().setAllGesturesEnabled(true);

                      -> marker_latlng // MAKE THIS WHATEVER YOU WANT

                        CameraPosition cameraPosition = new CameraPosition.Builder().target(marker_latlng).zoom(15.0f).build();
                        CameraUpdate cameraUpdate = CameraUpdateFactory.newCameraPosition(cameraPosition);
                        googleMap.moveCamera(cameraUpdate);

                }

            }
        });

The answers here are not actually completely correct. Close, but there's an edge case.

The difference is that $('body') actually selects the element by the tag name, whereas document.body references the direct object on the document.

That means if you (or a rogue script) overwrites the document.body element (shame!) $('body') will still work, but $(document.body) will not. So by definition they're not equivalent.

I'd venture to guess there are other edge cases (such as globally id'ed elements in IE) that would also trigger what amounts to an overwritten body element on the document object, and the same situation would apply.

Make sure your device is not connected as a media device.

#import "YourViewController.h"

To push a view including the navigation bar and/or tab bar:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"YourStoryboard" bundle:nil];
YourViewController *viewController = (YourViewcontroller *)[storyboard instantiateViewControllerWithIdentifier:@"YourViewControllerIdentifier"];
[self.navigationController pushViewController:viewController animated:YES];

To set identifier to a view controller, Open YourStoryboard.storyboard. Select YourViewController View-> Utilities -> ShowIdentityInspector. There you can specify the identifier.

Please try to fix this by setting the locale variables:

export LC_ALL="en_US.UTF-8"

export LC_CTYPE="en_US.UTF-8"

I believe there are a lot of good articles about this around the Web, but here is a short summary.

Both UTF-8 and UTF-16 are variable length encodings. However, in UTF-8 a character may occupy a minimum of 8 bits, while in UTF-16 character length starts with 16 bits.

Main UTF-8 pros:

• Basic ASCII characters like digits, Latin characters with no accents, etc. occupy one byte which is identical to US-ASCII representation. This way all US-ASCII strings become valid UTF-8, which provides decent backwards compatibility in many cases.
• No null bytes, which allows to use null-terminated strings, this introduces a great deal of backwards compatibility too.
• UTF-8 is independent of byte order, so you don't have to worry about Big Endian / Little Endian issue.

Main UTF-8 cons:

• Many common characters have different length, which slows indexing by codepoint and calculating a codepoint count terribly.
• Even though byte order doesn't matter, sometimes UTF-8 still has BOM (byte order mark) which serves to notify that the text is encoded in UTF-8, and also breaks compatibility with ASCII software even if the text only contains ASCII characters. Microsoft software (like Notepad) especially likes to add BOM to UTF-8.

Main UTF-16 pros:

• BMP (basic multilingual plane) characters, including Latin, Cyrillic, most Chinese (the PRC made support for some codepoints outside BMP mandatory), most Japanese can be represented with 2 bytes. This speeds up indexing and calculating codepoint count in case the text does not contain supplementary characters.
• Even if the text has supplementary characters, they are still represented by pairs of 16-bit values, which means that the total length is still divisible by two and allows to use 16-bit char as the primitive component of the string.

Main UTF-16 cons:

• Lots of null bytes in US-ASCII strings, which means no null-terminated strings and a lot of wasted memory.
• Using it as a fixed-length encoding “mostly works” in many common scenarios (especially in US / EU / countries with Cyrillic alphabets / Israel / Arab countries / Iran and many others), often leading to broken support where it doesn't. This means the programmers have to be aware of surrogate pairs and handle them properly in cases where it matters!
• It's variable length, so counting or indexing codepoints is costly, though less than UTF-8.

In general, UTF-16 is usually better for in-memory representation because BE/LE is irrelevant there (just use native order) and indexing is faster (just don't forget to handle surrogate pairs properly). UTF-8, on the other hand, is extremely good for text files and network protocols because there is no BE/LE issue and null-termination often comes in handy, as well as ASCII-compatibility.

Following the instructions laid out in Facebook's extending page tokens documentation I was able to get a page access token that does not expire.

I suggest using the Graph API Explorer for all of these steps except where otherwise stated.

0. Create Facebook App

If you already have an app, skip to step 1.

1. Go to My Apps.
2. Click "+ Add a New App".
3. Setup a website app.

You don't need to change its permissions or anything. You just need an app that wont go away before you're done with your access token.

1. Get User Short-Lived Access Token

1. Go to the Graph API Explorer.
2. Select the application you want to get the access token for (in the "Application" drop-down menu, not the "My Apps" menu).
3. Click "Get Token" > "Get User Access Token".
4. In the pop-up, under the "Extended Permissions" tab, check "manage_pages".
5. Click "Get Access Token".
6. Grant access from a Facebook account that has access to manage the target page. Note that if this user loses access the final, never-expiring access token will likely stop working.

The token that appears in the "Access Token" field is your short-lived access token.

2. Generate Long-Lived Access Token

Following these instructions from the Facebook docs, make a GET request to

https://graph.facebook.com/v2.10/oauth/access_token?grant_type=fb_exchange_token&client_id={app_id}&client_secret={app_secret}&fb_exchange_token={short_lived_token}

entering in your app's ID and secret and the short-lived token generated in the previous step.

You cannot use the Graph API Explorer. For some reason it gets stuck on this request. I think it's because the response isn't JSON, but a query string. Since it's a GET request, you can just go to the URL in your browser.

The response should look like this:

{"access_token":"ABC123","token_type":"bearer","expires_in":5183791}

"ABC123" will be your long-lived access token. You can put it into the Access Token Debugger to verify. Under "Expires" it should have something like "2 months".

3. Get User ID

Using the long-lived access token, make a GET request to

https://graph.facebook.com/v2.10/me?access_token={long_lived_access_token}

The id field is your account ID. You'll need it for the next step.

4. Get Permanent Page Access Token

Make a GET request to

https://graph.facebook.com/v2.10/{account_id}/accounts?access_token={long_lived_access_token}

The JSON response should have a data field under which is an array of items the user has access to. Find the item for the page you want the permanent access token from. The access_token field should have your permanent access token. Copy it and test it in the Access Token Debugger. Under "Expires" it should say "Never".

Using the "del" keyword:

del dict[key]

In python, integers and strings are immutable and are passed by value. You cannot pass a string, or integer, to a function and expect the argument to be modified.

So to convert string limit="100" to a number, you need to do

limit = int(limit) # will return new object (integer) and assign to "limit"

If you really want to go around it, you can use a list. Lists are mutable in python; when you pass a list, you pass it's reference, not copy. So you could do:

def int_in_place(mutable):
    mutable[0] = int(mutable[0])

mutable = ["1000"]
int_in_place(mutable)
# now mutable is a list with a single integer

But you should not need it really. (maybe sometimes when you work with recursions and need to pass some mutable state).

>>> text = 'lipsum'
>>> text[3:]
'sum'

See the official documentation on strings for more information and this SO answer for a concise summary of the notation.

In Swift:

if let placeholder = yourTextField.placeholder {
    yourTextField.attributedPlaceholder = NSAttributedString(string:placeholder, 
        attributes: [NSForegroundColorAttributeName: UIColor.blackColor()])
}

In Swift 4.0:

if let placeholder = yourTextField.placeholder {
    yourTextField.attributedPlaceholder = NSAttributedString(string:placeholder, 
        attributes: [NSAttributedStringKey.foregroundColor: UIColor.black])
}

Why not have a setSize method.

A* arrayOfAs = new A[5];
for (int i = 0; i < 5; ++i)
{
    arrayOfAs[i].SetSize(3);
}

I like the "copy" but in this case the default constructor isn't really doing anything. The SetSize could copy the data out of the original m_array (if it exists).. You'd have to store the size of the array within the class to do that.
OR
The SetSize could delete the original m_array.

void SetSize(unsigned int p_newSize)
{
    //I don't care if it's null because delete is smart enough to deal with that.
    delete myArray;
    myArray = new int[p_newSize];
    ASSERT(myArray);
}

MATLAB - Checking type of variables

class() exactly works like Javascript's typeof operator.

To get more details about variables you can use whos command or whos() function.

Here is the example code executed on MATLAB R2017a's Command Window.

>> % Define a number
>> num = 67

num =

    67

>> % Get type of variable num
>> class(num)

ans =

    'double'

>> % Define character vector
>> myName = 'Rishikesh Agrawani'

myName =

    'Rishikesh Agrwani'

>> % Check type of myName
>> class(myName)

ans =

    'char'

>> % Define a cell array
>> cellArr = {'This ', 'is ', 'a ', 'big chance to learn ', 'MATLAB.'}; % Cell array
>> 
>> class(cellArr)

ans =

    'cell'

>> % Get more details including type
>> whos num
  Name      Size            Bytes  Class     Attributes

  num       1x1                 8  double              

>> whos myName
  Name        Size            Bytes  Class    Attributes

  myName      1x17               34  char               

>> whos cellArr
  Name         Size            Bytes  Class    Attributes

  cellArr      1x5               634  cell               

>> % Another way to use whos i.e using whos(char_vector)
>> whos('cellArr')
  Name         Size            Bytes  Class    Attributes

  cellArr      1x5               634  cell               

>> whos('num')
  Name      Size            Bytes  Class     Attributes

  num       1x1                 8  double              

>> whos('myName')
  Name        Size            Bytes  Class    Attributes

  myName      1x17               34  char               

>> 

In your MakeFile or CMakeLists.txt you can set CMAKE_CXX_FLAGS as below:

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I/path/to/your/folder")

I think the most simple way is .iloc[[0, -1]].

df = pd.DataFrame({'a':range(1,5), 'b':['a','b','c','d']})
df2 = df.iloc[[0, -1]]

print df2

   a  b
0  1  a
3  4  d

As vim's own help on set background says, "Setting this option does not change the background color, it tells Vim what the background color looks like. For changing the background color, see |:hi-normal|."

For example

:highlight Normal ctermfg=grey ctermbg=darkblue

will write in white on blue on your color terminal.

I have experienced a great example of reproducing such a problem. Maybe my experience will help someone one day.

Short version

Check that your @Embedded Id of container has no possible collisions.

Long version

When Hibernate instantiates collection wrapper, it searches for already instantiated collection by CollectionKey in internal Map.

For Entity with @Embedded id, CollectionKey wraps EmbeddedComponentType and uses @Embedded Id properties for equality checks and hashCode calculation.

So if you have two entities with equal @Embedded Ids, Hibernate will instantiate and put new collection by the first key and will find same collection for the second key. So two entities with same @Embedded Id will be populated with same collection.

Example

Suppose you have Account entity which has lazy set of loans. And Account has @Embedded Id consists of several parts(columns).

@Entity
@Table(schema = "SOME", name = "ACCOUNT")
public class Account {
    @OneToMany(fetch = FetchType.LAZY, mappedBy = "account")
    private Set<Loan> loans;

    @Embedded
    private AccountId accountId;

    ...
}

@Embeddable
public class AccountId {
    @Column(name = "X")
    private Long x;
    
    @Column(name = "BRANCH")
    private String branchId;
    
    @Column(name = "Z")
    private String z;

    ...
}

Then suppose that Account has additional property mapped by @Embedded Id but has relation to other entity Branch.

@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "BRANCH")
@MapsId("accountId.branchId")
@NotFound(action = NotFoundAction.IGNORE)//Look at this!
private Branch branch;

It could happen that you have no FK for Account to Brunch relation id DB so Account.BRANCH column can have any value not presented in Branch table.

According to @NotFound(action = NotFoundAction.IGNORE) if value is not present in related table, Hibernate will load null value for the property.

If X and Y columns of two Accounts are same(which is fine), but BRANCH is different and not presented in Branch table, hibernate will load null for both and Embedded Ids will be equal.

So two CollectionKey objects will be equal and will have same hashCode for different Accounts.

result = {CollectionKey@34809} "CollectionKey[Account.loans#Account@43deab74]"
 role = "Account.loans"
 key = {Account@26451} 
 keyType = {EmbeddedComponentType@21355} 
 factory = {SessionFactoryImpl@21356} 
 hashCode = 1187125168
 entityMode = {EntityMode@17415} "pojo"

result = {CollectionKey@35653} "CollectionKey[Account.loans#Account@33470aa]"
 role = "Account.loans"
 key = {Account@35225} 
 keyType = {EmbeddedComponentType@21355} 
 factory = {SessionFactoryImpl@21356} 
 hashCode = 1187125168
 entityMode = {EntityMode@17415} "pojo"

Because of this, Hibernate will load same PesistentSet for two entities.

Try this:

top.document.getElementById('AppFrame').setAttribute("src",fullPath);

ok, you may use substr in correlation to instr to find the starting position of your string

select 
  dbms_lob.substr(
       product_details, 
       length('NEW.PRODUCT_NO'), --amount
       dbms_lob.instr(product_details,'NEW.PRODUCT_NO') --offset
       ) 
from my_table
where dbms_lob.instr(product_details,'NEW.PRODUCT_NO')>=1;

- name: host
   debug: msg="{{ item }}" 
   with_items:
    - "{{ groups['tests'] }}"

This piece of code will give the message:

'10.112.84.122'
'10.112.84.124'

as groups['tests'] basically return a list of unique ip addresses ['10.112.84.122','10.112.84.124'] whereas groups['tomcat'][0] returns 10.112.84.124.

Another different way to achieve the renaming or change the mappings for an index is to reindex using logstash. Here is a sample of the logstash 2.1 configuration:

input {
  elasticsearch {
   hosts => ["es01.example.com", "es02.example.com"]
   index => "old-index-name"
   size => 500
   scroll => "5m"
  }
}
filter {

 mutate {
  remove_field => [ "@version" ]
 }

 date {
   "match" => [ "custom_timestamp", "MM/dd/YYYY HH:mm:ss" ]
   target => "@timestamp"
 }

}
output {
 elasticsearch {
   hosts => ["es01.example.com", "es02.example.com" ]
   manage_template => false
   index => "new-index-name"
 }
}

Put the line in a stringstream and extract word by word back:

#include <iostream>
#include <sstream>
using namespace std;

int main()
{
    string t;
    getline(cin,t);

    istringstream iss(t);
    string word;
    while(iss >> word) {
        /* do stuff with word */
    }
}

Of course, you can just skip the getline part and read word by word from cin directly.

And here you can read why is using namespace std considered bad practice.

With SimpleDateFormat. And steps are -

1. Create your date pattern string
2. Create SimpleDateFormat Object
3. And parse with it.
4. It will return Date Object.

@Sheridan thx.. if I try your example with "DisplayedImagePath" on both sides, it works with absolute path as you show.

As for the relative paths, this is how I always connect relative paths, I first include the subdirectory (!) and the image file in my project.. then I use ~ character to denote the bin-path..

    public string DisplayedImagePath
    {
        get { return @"~\..\images\osc.png"; }
    }

This was tested, see below my Solution Explorer in VS2015..

)

Note: if you want a Click event, use the Button tag around the image,

<Button Click="image_Click" Width="128" Height="128"  Grid.Row="2" VerticalAlignment="Top" HorizontalAlignment="Left">_x000D_
  <Image x:Name="image" Source="{Binding DisplayedImagePath}" Margin="0,0,0,0" />_x000D_
</Button>

For those looking for an example of how to pass the OAuth2 authorization (access token) in the header (as opposed to using a request or body parameter), here is how it's done:

Authorization: Bearer 0b79bab50daca910b000d4f1a2b675d604257e42

I got this error when the chrome driver was not closed properly. Eg, if I try to find something and click it and it doesn't exist, the driver throws an exception and the thread ended there ( I did not close the driver ).

So, when I ran the same method again later where I had to reinitialize the driver, the driver didn't initialize and it threw the exception.

My solve was simply to wrap the selenium tasks in a try catch and close the driver properly

If you can not use Management studio i use sqlcmd.

sqlcmd -q "select col1,col2,col3 from table" -oc:\myfile.csv -h-1 -s","

That is the fast way to do it from command line.

You can use // instead of single /. That converts to int directly.

Short answer: While it's technically possible to send 100k e-mails each week yourself, the simplest, easiest and cheapest solution is to outsource this to one of the companies that specialize in it (I did say "cheapest": there's no limit to the amount of development time (and therefore money) that you can sink into this when trying to DIY).

Long answer: If you decide that you absolutely want to do this yourself, prepare for a world of hurt (after all, this is e-mail/e-fail we're talking about). You'll need:

• e-mail content that is not spam (otherwise you'll run into additional major roadblocks on every step, even legal repercussions)
• in addition, your content should be easy to distinguish from spam - that may be a bit hard to do in some cases (I heard that a certain pharmaceutical company had to all but abandon e-mail, as their brand names are quite common in spams)
• a configurable SMTP server of your own, one which won't buckle when you dump 100k e-mails onto it (your ISP's upstream server won't be sufficient here and you'll make the ISP violently unhappy; we used two dedicated boxes)
• some mail wrapper (e.g. PhpMailer if PHP's your poison of choice; using PHP's mail() is horrible enough by itself)
• your own sender function to run in a loop, create the mails and pass them to the wrapper (note that you may run into PHP's memory limits if your app has a memory leak; you may need to recycle the sending process periodically, or even better, decouple the "creating e-mails" and "sending e-mails" altogether)

Surprisingly, that was the easy part. The hard part is actually sending it:

• some servers will ban you when you send too many mails close together, so you need to shuffle and watch your queue (e.g. send one mail to [email protected], then three to other domains, only then another to [email protected])
• you need to have correct PTR, SPF, DKIM records
• handling remote server timeouts, misconfigured DNS records and other network pleasantries
• handling invalid e-mails (and no, regex is the wrong tool for that)
• handling unsubscriptions (many legitimate newsletters have been reclassified as spam due to many frustrated users who couldn't unsubscribe in one step and instead chose to "mark as spam" - the spam filters do learn, esp. with large e-mail providers)
• handling bounces and rejects ("no such mailbox [email protected]","mailbox [email protected] full")
• handling blacklisting and removal from blacklists (Sure, you're not sending spam. Some recipients won't be so sure - with such large list, it will happen sometimes, no matter what precautions you take. Some people (e.g. your not-so-scrupulous competitors) might even go as far to falsely report your mailings as spam - it does happen. On average, it takes weeks to get yourself removed from a blacklist.)

And to top it off, you'll have to manage the legal part of it (various federal, state, and local laws; and even different tangles of laws once you send outside the U.S. (note: you have no way of finding if [email protected] lives in Southwest Elbonia, the country with world's most draconian antispam laws)).

I'm pretty sure I missed a few heads of this hydra - are you still sure you want to do this yourself? If so, there'll be another wave, this time merely the annoying problems inherent in sending an e-mail. (You see, SMTP is a store-and-forward protocol, which means that your e-mail will be shuffled across many SMTP servers around the Internet, in the hope that the next one is a bit closer to the final recipient. Basically, the e-mail is sent to an SMTP server, which puts it into its forward queue; when time comes, it will forward it further to a different SMTP server, until it reaches the SMTP server for the given domain. This forward could happen immediately, or in a few minutes, or hours, or days, or never.) Thus, you'll see the following issues - most of which could happen en route as well as at the destination:

• the remote SMTP servers don't want to talk to your SMTP server
• your mails are getting marked as spam (<blink> is not your friend here, nor is <font color=...>)
• your mails are delivered days, even weeks late (contrary to popular opinion, SMTP is designed to make a best effort to deliver the message sometime in the future - not to deliver it now)
• your mails are not delivered at all (already sent from e-mail server on hop #4, not sent yet from server on hop #5, the server that currently holds the message crashes, data is lost)
• your mails are mangled by some braindead server en route (this one is somewhat solvable with base64 encoding, but then the size goes up and the e-mail looks more suspicious)
• your mails are delivered and the recipients seem not to want them ("I'm sure I didn't sign up for this, I remember exactly what I did a year ago" (of course you do, sir))
• users with various versions of Microsoft Outlook and its special handling of Internet mail
• wizard's apprentice mode (a self-reinforcing positive feedback loop - in other words, automated e-mails as replies to automated e-mails as replies to...; you really don't want to be the one to set this off, as you'd anger half the internet at yourself)

and it'll be your job to troubleshoot and solve this (hint: you can't, mostly). The people who run a legit mass-mailing businesses know that in the end you can't solve it, and that they can't solve it either - and they have the reasons well researched, documented and outlined (maybe even as a Powerpoint presentation - complete with sounds and cool transitions - that your bosses can understand), as they've had to explain this a million times before. Plus, for the problems that are actually solvable, they know very well how to solve them.

If, after all this, you are not discouraged and still want to do this, go right ahead: it's even possible that you'll find a better way to do this. Just know that the road ahead won't be easy - sending e-mail is trivial, getting it delivered is hard.

Git Bash on Windows using arrays for multiple return values

BASH CODE:

#!/bin/bash

##A 6-element array used for returning
##values from functions:
declare -a RET_ARR
RET_ARR[0]="A"
RET_ARR[1]="B"
RET_ARR[2]="C"
RET_ARR[3]="D"
RET_ARR[4]="E"
RET_ARR[5]="F"


function FN_MULTIPLE_RETURN_VALUES(){

   ##give the positional arguments/inputs
   ##$1 and $2 some sensible names:
   local out_dex_1="$1" ##output index
   local out_dex_2="$2" ##output index

   ##Echo for debugging:
   echo "running: FN_MULTIPLE_RETURN_VALUES"

   ##Here: Calculate output values:
   local op_var_1="Hello"
   local op_var_2="World"

   ##set the return values:
   RET_ARR[ $out_dex_1 ]=$op_var_1
   RET_ARR[ $out_dex_2 ]=$op_var_2
}


echo "FN_MULTIPLE_RETURN_VALUES EXAMPLES:"
echo "-------------------------------------------"
fn="FN_MULTIPLE_RETURN_VALUES"
out_dex_a=0
out_dex_b=1
eval $fn $out_dex_a $out_dex_b  ##<--Call function
a=${RET_ARR[0]} && echo "RET_ARR[0]: $a "
b=${RET_ARR[1]} && echo "RET_ARR[1]: $b "
echo
##----------------------------------------------##
c="2"
d="3"
FN_MULTIPLE_RETURN_VALUES $c $d ##<--Call function
c_res=${RET_ARR[2]} && echo "RET_ARR[2]: $c_res "
d_res=${RET_ARR[3]} && echo "RET_ARR[3]: $d_res "
echo
##----------------------------------------------##
FN_MULTIPLE_RETURN_VALUES 4 5  ##<---Call function
e=${RET_ARR[4]} && echo "RET_ARR[4]: $e "
f=${RET_ARR[5]} && echo "RET_ARR[5]: $f "
echo
##----------------------------------------------##


read -p "Press Enter To Exit:"

EXPECTED OUTPUT:

FN_MULTIPLE_RETURN_VALUES EXAMPLES:
-------------------------------------------
running: FN_MULTIPLE_RETURN_VALUES
RET_ARR[0]: Hello
RET_ARR[1]: World

running: FN_MULTIPLE_RETURN_VALUES
RET_ARR[2]: Hello
RET_ARR[3]: World

running: FN_MULTIPLE_RETURN_VALUES
RET_ARR[4]: Hello
RET_ARR[5]: World

Press Enter To Exit:

I am on a Windows (WIN7), running Python 2.7.5 & Matplotlib 1.3.1.

I was able to maximize Figure windows for TkAgg, QT4Agg, and wxAgg using the following lines:

from matplotlib import pyplot as plt

### for 'TkAgg' backend
plt.figure(1)
plt.switch_backend('TkAgg') #TkAgg (instead Qt4Agg)
print '#1 Backend:',plt.get_backend()
plt.plot([1,2,6,4])
mng = plt.get_current_fig_manager()
### works on Ubuntu??? >> did NOT working on windows
# mng.resize(*mng.window.maxsize())
mng.window.state('zoomed') #works fine on Windows!
plt.show() #close the figure to run the next section

### for 'wxAgg' backend
plt.figure(2)
plt.switch_backend('wxAgg')
print '#2 Backend:',plt.get_backend()
plt.plot([1,2,6,4])
mng = plt.get_current_fig_manager()
mng.frame.Maximize(True)
plt.show() #close the figure to run the next section

### for 'Qt4Agg' backend
plt.figure(3)
plt.switch_backend('QT4Agg') #default on my system
print '#3 Backend:',plt.get_backend()
plt.plot([1,2,6,4])
figManager = plt.get_current_fig_manager()
figManager.window.showMaximized()
plt.show()

if you want to maximize multiple figures you can use

for fig in figs:
    mng = fig.canvas.manager
    # ...

Hope this summary of the previous answers (and some additions) combined in a working example (at least for windows) helps. Cheers

You are sending "params" in js: request.send(params);

but "data" in jquery". Is data defined?: data:data,

Also, you have an error in the URL:

$.ajax( {url:url,
         type:"POST",
         dataType:"json",
         data:data, 
         success:function(data, textStatus, jqXHR) {alert("success");},
         error: function(jqXHR, textStatus, errorThrown) {alert("failure");}
});

You are mixing the syntax with the one for $.post

Update: I was googling around based on monsur answer, and I found that you need to add Access-Control-Allow-Headers: Content-Type (below is the full paragraph)

http://metajack.im/2010/01/19/crossdomain-ajax-for-xmpp-http-binding-made-easy/

How CORS Works

CORS works very similarly to Flash's crossdomain.xml file. Basically, the browser will send a cross-domain request to a service, setting the HTTP header Origin to the requesting server. The service includes a few headers like Access-Control-Allow-Origin to indicate whether such a request is allowed.

For the BOSH connection managers, it is enough to specify that all origins are allowed, by setting the value of Access-Control-Allow-Origin to *. The Content-Type header must also be white-listed in the Access-Control-Allow-Headers header.

Finally, for certain types of requests, including BOSH connection manager requests, the permissions check will be pre-flighted. The browser will do an OPTIONS request and expect to get back some HTTP headers that indicate which origins are allowed, which methods are allowed, and how long this authorization will last. For example, here is what the Punjab and ejabberd patches I did return for OPTIONS:

Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST, OPTIONS
Access-Control-Allow-Headers: Content-Type 
Access-Control-Max-Age: 86400

$("#ddtypeoftraining option[value=5]").css("display", "none"); $('#ddtypeoftraining').selectpicker('refresh');

You have to do this:

class Bar : public Foo
{
    // ...
}

The default inheritance type of a class in C++ is private, so any public and protected members from the base class are limited to private. struct inheritance on the other hand is public by default.

And based on merkuro's solution, if you would like maximize the one on the left, you should use:

<!DOCTYPE html>   
<html lang="en">     
    <head>              
        <meta "charset="UTF-8" />   
        <title>Content with Menu</title>                 
        <style>
            .content .left {
                margin-right: 100px;
                background-color: green;
            }
            .content .right {
                float: right;
                width: 100px;
                background-color: red;
            }
        </style>              
    </head>
    <body>        
        <div class="content">
            <div class="right">  
                <p>is</p>
                <p>this</p>
                <p>what</p>
                <p>you are looking for?</p>
            </div>
            <div class="left">
                <p>Hi, Flo!</p>
            </div>
        </div>
    </body>
</html>

Has not been tested on IE, so it may look broken on IE.

It's the null coalescing operator, and quite like the ternary (immediate-if) operator. See also ?? Operator - MSDN.

FormsAuth = formsAuth ?? new FormsAuthenticationWrapper();

expands to:

FormsAuth = formsAuth != null ? formsAuth : new FormsAuthenticationWrapper();

which further expands to:

if(formsAuth != null)
    FormsAuth = formsAuth;
else
    FormsAuth = new FormsAuthenticationWrapper();

In English, it means "If whatever is to the left is not null, use that, otherwise use what's to the right."

Note that you can use any number of these in sequence. The following statement will assign the first non-null Answer# to Answer (if all Answers are null then the Answer is null):

string Answer = Answer1 ?? Answer2 ?? Answer3 ?? Answer4;

Also it's worth mentioning while the expansion above is conceptually equivalent, the result of each expression is only evaluated once. This is important if for example an expression is a method call with side effects. (Credit to @Joey for pointing this out.)

public static void WriteLine(this List<int> theList)
{
  foreach (int i in list)
  {
    Console.Write("{0}\t", t.ToString());
  }
  Console.WriteLine();
}

Then, later...

list.WriteLine();

See below example of mocks vs stubs using C# and Moq framework. Moq doesn't have a special keyword for Stub but you can use Mock object to create stubs too.

namespace UnitTestProject2
{
    using Microsoft.VisualStudio.TestTools.UnitTesting;
    using Moq;
    [TestClass]
    public class UnitTest1
    {
        /// <summary>
        /// Test using Mock to Verify that GetNameWithPrefix method calls Repository GetName method "once" when Id is greater than Zero
        /// </summary>
        [TestMethod]
        public void GetNameWithPrefix_IdIsTwelve_GetNameCalledOnce()
        {
            // Arrange 
            var mockEntityRepository = new Mock<IEntityRepository>();
            mockEntityRepository.Setup(m => m.GetName(It.IsAny<int>()));

            var entity = new EntityClass(mockEntityRepository.Object);
            // Act 
            var name = entity.GetNameWithPrefix(12);
            // Assert
            mockEntityRepository.Verify(m => m.GetName(It.IsAny<int>()), Times.Once);
        }
        /// <summary>
        /// Test using Mock to Verify that GetNameWithPrefix method doesn't call Repository GetName method when Id is Zero
        /// </summary>
        [TestMethod]
        public void GetNameWithPrefix_IdIsZero_GetNameNeverCalled()
        {
            // Arrange 
            var mockEntityRepository = new Mock<IEntityRepository>();
            mockEntityRepository.Setup(m => m.GetName(It.IsAny<int>()));
            var entity = new EntityClass(mockEntityRepository.Object);
            // Act 
            var name = entity.GetNameWithPrefix(0);
            // Assert
            mockEntityRepository.Verify(m => m.GetName(It.IsAny<int>()), Times.Never);
        }
        /// <summary>
        /// Test using Stub to Verify that GetNameWithPrefix method returns Name with a Prefix
        /// </summary>
        [TestMethod]
        public void GetNameWithPrefix_IdIsTwelve_ReturnsNameWithPrefix()
        {
            // Arrange 
            var stubEntityRepository = new Mock<IEntityRepository>();
            stubEntityRepository.Setup(m => m.GetName(It.IsAny<int>()))
                .Returns("Stub");
            const string EXPECTED_NAME_WITH_PREFIX = "Mr. Stub";
            var entity = new EntityClass(stubEntityRepository.Object);
            // Act 
            var name = entity.GetNameWithPrefix(12);
            // Assert
            Assert.AreEqual(EXPECTED_NAME_WITH_PREFIX, name);
        }
    }
    public class EntityClass
    {
        private IEntityRepository _entityRepository;
        public EntityClass(IEntityRepository entityRepository)
        {
            this._entityRepository = entityRepository;
        }
        public string Name { get; set; }
        public string GetNameWithPrefix(int id)
        {
            string name = string.Empty;
            if (id > 0)
            {
                name = this._entityRepository.GetName(id);
            }
            return "Mr. " + name;
        }
    }
    public interface IEntityRepository
    {
        string GetName(int id);
    }
    public class EntityRepository:IEntityRepository
    {
        public string GetName(int id)
        {
            // Code to connect to DB and get name based on Id
            return "NameFromDb";
        }
    }
}

It is not so easy to give out specific addresses to people say for a conference or a specific project or product. It could be more secure to prevent hacking such as SQL injection attacks etc.

In the navigator under SCHEMAS, right click your schema/database and select "Table Data Import Wizard"

Works for mac too.

Try to set response dataType property directly:

dataType: 'text'

and put

die(''); 

in the end of your php file. You've got error callback cause jquery cannot parse your response. In anyway, you may use a "complete:" callback, just to make sure your request has been processed.

Use %in% as follows

A$C %in% B$C

Which will tell you which values of column C of A are in B.

What is returned is a logical vector. In the specific case of your example, you get:

A$C %in% B$C
# [1]  TRUE FALSE  TRUE  TRUE

Which you can use as an index to the rows of A or as an index to A$C to get the actual values:

# as a row index
A[A$C %in% B$C,  ]  # note the comma to indicate we are indexing rows

# as an index to A$C
A$C[A$C %in% B$C]
[1] 1 3 4  # returns all values of A$C that are in B$C

We can negate it too:

A$C[!A$C %in% B$C]
[1] 2   # returns all values of A$C that are NOT in B$C

  2 %in% B$C   # "is the value 2 in B$C ?"  
  # FALSE

  A$C[2] %in% B$C  # "is the 2nd element of A$C in B$C ?"  
  # FALSE

Remove this from #info:

    margin-left:auto;

Add this for your header:

#info p {
    text-align: center;
}

Do you need the fixed width etc.? I removed the in my opinion not necessary stuff and centered the header with text-align.

Sample
http://jsfiddle.net/Vc8CB/

I was able to do that by using the "branches to build" parameter:

Branch Specifier (blank for default): tags/[tag-name]

Replace [tag-name] by the name of your tag.

the below lines would also work

!python script.py

If you are using Eclipse just cross check in Eclipse Windows--> preferences---->java---> installed JREs is pointing the current JRE and the JRE where you have configured your certificate. If not remove the JRE and add the jre where your certificate is installed

If you have Java 7 so include the below following snippet within your app-level build.gradle :

compileOptions {

    sourceCompatibility JavaVersion.VERSION_1_7
    targetCompatibility JavaVersion.VERSION_1_7

}

Flash still has the ASO file, which is the compiled byte code for your classes. On Windows, you can see the ASO files here:

C:\Documents and Settings\username\Local Settings\Application Data\Adobe\Flash CS4\en\Configuration\Classes\aso

On a Mac, the directory structure is similar in /Users/username/Library/Application Support/

You can remove those files by hand, or in Flash you can select Control->Delete ASO files to remove them.

Suppose gamma1 and gamma2 are two such columns for which df.isnull().any() gives True value , the following code can be used to print the rows.

bool1 = pd.isnull(df['gamma1'])
bool2 = pd.isnull(df['gamma2'])
df[bool1]
df[bool2]

you are looking for this:

a:visited{
  color:blue;
}

Links have several states you can alter... the way I remember them is LVHFA (Lord Vader's Handle Formerly Anakin)

Each letter stands for a pseudo class: (Link,Visited,Hover,Focus,Active)

a:link{
  color:blue;
}
a:visited{
  color:purple;
}
a:hover{
  color:orange;
}
a:focus{
  color:green;
}
a:active{
  color:red;
}

If you want the links to always be blue, just change all of them to blue. I would note though on a usability level, it would be nice if the mouse click caused the color to change a little bit (even if just a lighter/darker blue) to help indicate that the link was actually clicked (this is especially important in a touchscreen interface where you're not always sure the click was actually registered)

If you have different types of links that you want to all have the same color when clicked, add a class to the links.

a.foo, a.foo:link, a.foo:visited, a.foo:hover, a.foo:focus, a.foo:active{
  color:green;
}
a.bar, a.bar:link, a.bar:visited, a.bar:hover, a.bar:focus, a.bar:active{
  color:orange;
}

It should be noted that not all browsers respect each of these options ;-)

<ComboBox Text="Something">
            <ComboBoxItem Content="Item1"></ComboBoxItem >
            <ComboBoxItem Content="Item2"></ComboBoxItem >
            <ComboBoxItem Content="Item3"></ComboBoxItem >
</ComboBox>

View the Inner Exception of the exception to get a more specific error message.

One way to view the Inner Exception would be to catch the exception, and put a breakpoint on it. Then in the Locals window: select the Exception variable > InnerException > Message

And/Or just write to console:

    catch (Exception e)
    {
        Console.WriteLine(e.InnerException.Message);
    }

var sb = new StringBuilder();
sb.Append(beforeText);
sb.Insert(2, insertText);
afterText = sb.ToString();

Here's a quick way to do this.

Make sure the link is shared, and it will look something like this:

https://drive.google.com/open?id=FILEID&authuser=0

Then, copy that FILEID and use it like this

wget --no-check-certificate 'https://docs.google.com/uc?export=download&id=FILEID' -O FILENAME

I use putty connection manager where you create a database of sessions. It's easy to copy and import that database to other computers.

See this handy guide

This thing works well.It put radio button or checkbox with label in same line without any css. <label><input type="radio" value="new" name="filter">NEW</label> <label><input type="radio" value="wow" name="filter">WOW</label>

Additional to the above - the QEMU website has good documentation about setting up an ARM based emulator: http://qemu.weilnetz.de/qemu-doc.html#ARM-System-emulator

Check out the manual: http://www.php.net/manual/en/datetime.format.php

<?php
$date = new DateTime('2000-01-01');
echo $date->format('Y-m-d H:i:s');
?>

Will output: 2000-01-01 00:00:00

Alternate Solution :

reduce(lambda x,y : filter(lambda z: z!=y,x) ,[2,3,5,8],[1,2,6,8])

Try this function:

=SUBTOTAL(3, B$2:B2)

You can find more details in this blog entry.

package main

import (
    "fmt" 
    "strconv"
)

func main(){
//First question: how to get int string?

    intValue := 123
    // keeping it in separate variable : 
    strValue := strconv.Itoa(intValue) 
    fmt.Println(strValue)

//Second question: how to concat two strings?

    firstStr := "ab"
    secondStr := "c"
    s := firstStr + secondStr
    fmt.Println(s)
}

You need to have an instance of a class to use its methods. Or if you don't need to access any of classes' variables (not static parameters) then you can define the method as static and it can be used even if the class isn't instantiated. Just add @staticmethod decorator to your methods.

class MathsOperations:
    @staticmethod
    def testAddition (x, y):
        return x + y
    @staticmethod
    def testMultiplication (a, b):
        return a * b

docs: http://docs.python.org/library/functions.html#staticmethod

var result = Math.round(original*100)/100;

The specifics, in case the code isn't self-explanatory.

edit: ...or just use toFixed, as proposed by Tim Büthe. Forgot that one, thanks (and an upvote) for reminder :)

In my program I first check for Terminal Server and use the WTSClientHardwareId. Else the MAC address of the local PC should be adequate.

If you really want to use the list of properties you provided leave out things like Name and DriverVersion, Clockspeed, etc. since it's possibly OS dependent. Try outputting the same info on both operating systems and leave out that which differs between.

You may do this with a for loop instead of a while:

max_loop=20
for ((count = 0; count < max_loop; count++)); do
  if /home/hadoop/latest/bin/hadoop fs -ls /apps/hdtech/bds/quality-rt/dt=$DATE_YEST_FORMAT2 then
       echo "Files Present" | mailx -s "File Present"  -r [email protected] [email protected]
       break
  else
       echo "Sleeping for half an hour" | mailx -s "Time to Sleep Now"  -r [email protected] [email protected]
       sleep 1800
  fi
done

if [ "$count" -eq "$max_loop" ]; then
  echo "Maximum number of trials reached" >&2
  exit 1
fi

I know this answer violates the terms of your question, but I think the correct answer to your intent is simply this: use whichever algorithm allows you the longest key length, then make sure you choose a really good key. Minor differences in the performance of most well regarded algorithms (cryptographically and chronologically) are overwhelmed by a few extra bits of a key.

Edit: Since node v10.0.0we could use fs.promises.access(...)

Example async code that checks if file exists:

async function checkFileExists(file) {
  return fs.promises.access(file, fs.constants.F_OK)
           .then(() => true)
           .catch(() => false)
}

An alternative for stat might be using the new fs.access(...):

minified short promise function for checking:

s => new Promise(r=>fs.access(s, fs.constants.F_OK, e => r(!e)))

Sample usage:

let checkFileExists = s => new Promise(r=>fs.access(s, fs.constants.F_OK, e => r(!e)))
checkFileExists("Some File Location")
  .then(bool => console.log(´file exists: ${bool}´))

expanded Promise way:

// returns a promise which resolves true if file exists:
function checkFileExists(filepath){
  return new Promise((resolve, reject) => {
    fs.access(filepath, fs.constants.F_OK, error => {
      resolve(!error);
    });
  });
}

or if you wanna do it synchronously:

function checkFileExistsSync(filepath){
  let flag = true;
  try{
    fs.accessSync(filepath, fs.constants.F_OK);
  }catch(e){
    flag = false;
  }
  return flag;
}

Perhaps you have some very weird and restrictive SELinux rules in place?

If not, try strace -o /tmp/wtf -fF curl -v google.com and try to spot from /tmp/wtf output file what's going on.

There were just a couple of minor amendments required:

ans=True
while ans:
    print ("""
    1.Add a Student
    2.Delete a Student
    3.Look Up Student Record
    4.Exit/Quit
    """)
    ans=raw_input("What would you like to do? ") 
    if ans=="1": 
      print("\n Student Added") 
    elif ans=="2":
      print("\n Student Deleted") 
    elif ans=="3":
      print("\n Student Record Found") 
    elif ans=="4":
      print("\n Goodbye") 
    elif ans !="":
      print("\n Not Valid Choice Try again") 

I have changed the four quotes to three (this is the number required for multiline quotes), added a closing bracket after "What would you like to do? " and changed input to raw_input.

It's common for other components to be listening to the change event, or for custom event handlers to be attached that may have side effects. Select2 does not have a custom event (like select2:update) that can be triggered other than change. You can rely on jQuery's event namespacing to limit the scope to Select2 though by triggering the *change.select2 event.

$('#state').trigger('change.select2'); // Notify only Select2 of changes

For a single result:

if (reader.Read())
{
    Response.Write(reader[0].ToString());
    Response.Write(reader[1].ToString());
}

For multiple results:

while (reader.Read())
{
    Response.Write(reader[0].ToString());
    Response.Write(reader[1].ToString());
}

Here is an example function that I wrote to do this based upon the answers above and my own use case:

def label_vector_to_one_hot_vector(vector, one_hot_size=10):
    """
    Use to convert a column vector to a 'one-hot' matrix

    Example:
        vector: [[2], [0], [1]]
        one_hot_size: 3
        returns:
            [[ 0.,  0.,  1.],
             [ 1.,  0.,  0.],
             [ 0.,  1.,  0.]]

    Parameters:
        vector (np.array): of size (n, 1) to be converted
        one_hot_size (int) optional: size of 'one-hot' row vector

    Returns:
        np.array size (vector.size, one_hot_size): converted to a 'one-hot' matrix
    """
    squeezed_vector = np.squeeze(vector, axis=-1)

    one_hot = np.zeros((squeezed_vector.size, one_hot_size))

    one_hot[np.arange(squeezed_vector.size), squeezed_vector] = 1

    return one_hot

label_vector_to_one_hot_vector(vector=[[2], [0], [1]], one_hot_size=3)

The Statement gives you the following option:

Statement stmt = con.createStatement();

stmt.addBatch("INSERT INTO employees VALUES (1000, 'Joe Jones')");
stmt.addBatch("INSERT INTO departments VALUES (260, 'Shoe')");
stmt.addBatch("INSERT INTO emp_dept VALUES (1000, 260)");

// submit a batch of update commands for execution
int[] updateCounts = stmt.executeBatch();

mmap is great if you have multiple processes accessing data in a read only fashion from the same file, which is common in the kind of server systems I write. mmap allows all those processes to share the same physical memory pages, saving a lot of memory.

mmap also allows the operating system to optimize paging operations. For example, consider two programs; program A which reads in a 1MB file into a buffer creating with malloc, and program B which mmaps the 1MB file into memory. If the operating system has to swap part of A's memory out, it must write the contents of the buffer to swap before it can reuse the memory. In B's case any unmodified mmap'd pages can be reused immediately because the OS knows how to restore them from the existing file they were mmap'd from. (The OS can detect which pages are unmodified by initially marking writable mmap'd pages as read only and catching seg faults, similar to Copy on Write strategy).

mmap is also useful for inter process communication. You can mmap a file as read / write in the processes that need to communicate and then use synchronization primitives in the mmap'd region (this is what the MAP_HASSEMAPHORE flag is for).

One place mmap can be awkward is if you need to work with very large files on a 32 bit machine. This is because mmap has to find a contiguous block of addresses in your process's address space that is large enough to fit the entire range of the file being mapped. This can become a problem if your address space becomes fragmented, where you might have 2 GB of address space free, but no individual range of it can fit a 1 GB file mapping. In this case you may have to map the file in smaller chunks than you would like to make it fit.

Another potential awkwardness with mmap as a replacement for read / write is that you have to start your mapping on offsets of the page size. If you just want to get some data at offset X you will need to fixup that offset so it's compatible with mmap.

And finally, read / write are the only way you can work with some types of files. mmap can't be used on things like pipes and ttys.

The problem could be due to too many users accessing the db at the same time. Either increase number of users that can concurrently access the db or kick out existing users (or apps). Use "Show processlist;" in the host DB to check connected users;

I came across another reason, catalina.policy file, could prohibit accessing specific IP/PORT

Problems

The code has the following issues:

• An Ajax call (<a4j:commandButton .../>) does not work with attachments.
• Creating the output content must happen first.
• Displaying the error messages also cannot use Ajax-based a4j tags.

Solution

1. Change <a4j:commandButton .../> to <h:commandButton .../>.
2. Update the source code:
   1. Change bw.write( getDomainDocument() ); to bw.write( document );.
   2. Add String document = getDomainDocument(); to the first line of the try/catch.
3. Change the <a4j:outputPanel.../> (not shown) to <h:messages showDetail="false"/>.

Essentially, remove all the Ajax facilities related to the commandButton. It is still possible to display error messages and leverage the RichFaces UI style.

References

• Using a commandButton in a jsf Page to download a file
• http://www.coderanch.com/t/483892/JSF/java/when-commandButton-commandLink
• http://seamframework.org/135584.lace

You need to concatenate your string.

document.getElementById(tabName).style.backgroundImage = 'url(buttons/' + imagePrefix + '.png)';

The way you had it, it's just making 1 long string and not actually interpreting imagePrefix.

I would even suggest creating the string separate:

function ChangeBackgroungImageOfTab(tabName, imagePrefix)
{
    var urlString = 'url(buttons/' + imagePrefix + '.png)';
    document.getElementById(tabName).style.backgroundImage =  urlString;
}

As mentioned by David Thomas below, you can ditch the double quotes in your string. Here is a little article to get a better idea of how strings and quotes/double quotes are related: http://www.quirksmode.org/js/strings.html

myList.GroupBy(i => i.id).Select(group => group.First())

Usually a null pointer (which can be of any type, including a void pointer !) points to:

• the address 0, against which most CPU instructions sets can do a very fast compare-and-branch (to check for uninitialized or invalid pointers, for instance) with optimal code size/performance for the ISA.

• an address that's illegal for user code to access (such as 0x00000000 in many cases), so that if a code actually tries to access data at or near this address, the OS or debugger can easily stop or trap a program with this bug.

A void pointer is usually a method of cheating or turning-off compiler type checking, for instance if you want to return a pointer to one type, or an unknown type, to use as another type. For instance malloc() returns a void pointer to a type-less chunk of memory, the type of which you can cast to later use as a pointer to bytes, short ints, double floats, typePotato's, or whatever.

fill in the blanks to print both 'correct' and 'wrong' below:

if(--------)
printf("correct");
else
printf("wrong");

The answer is !printf("correct")

This approach from Microsoft works very well and provides the option to compare one list to another and switch them to get the difference in each. If you are comparing classes simply add your objects to two separate lists and then run the comparison.

http://msdn.microsoft.com/en-us/library/bb397894.aspx

SQLite has a printf function which does exactly that:

SELECT printf('%s-%.2d-%.4d', col1, col2, col3) FROM mytable

VB.NET Sample Code

Dim A as String = "5.3"
Dim B as Double

B = CDbl(Val(A)) '// Val do hard work

'// Get output 
MsgBox (B) '// Output is 5,3 Without Val result is 53.0

One option is using Object.keys():

Object.keys(driversCounter)

It works fine for modern browsers (however, Internet Explorer supports it starting from version 9 only).

To add compatible support you can copy the code snippet provided in MDN.

Try using jQuery to avoid cross browser compatibility problems...

$("textarea").keyup(function(){
    if($(this).text().length > 500){
        var text = $(this).text();
        $(this).text(text.substr(0, 500));   
    }
});

Whoever wants UML deserves Rational Rose :)

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).

set permission on application directory solve this issue with me

To set this permission, right click on the App_Data folder (or whichever other folder you have put the file in) and select Properties. Look for the Security tab. If you can't see it, you need to go to My Computer, then click Tools and choose Folder Options.... then click the View tab. Scroll to the bottom and uncheck "Use simple file sharing (recommended)". Back to the Security tab, you need to add the relevant account to the Group or User Names box. Click Add.... then click Advanced, then Find Now. The appropriate account should be listed. Double click it to add it to the Group or User Names box, then check the Modify option in the permissions. That's it. You are done.

If the method of this code is not static, you can get a work-around in 5.2 by using get_class($this).

class A {
    public function create1() {
        $class = get_class($this);
        return new $class();
    }
    public function create2() {
        return new static();
    }
}

class B extends A {

}

$b = new B();
var_dump(get_class($b->create1()), get_class($b->create2()));

The results:

string(1) "B"
string(1) "B"

• Window is like Windows.Forms.Form, so just a new window

• Page is, according to online documentation:

  Encapsulates a page of content that can be navigated to and hosted by Windows Internet Explorer, NavigationWindow, and Frame.

  So you basically use this if going you visualize some HTML content

• UserControl is for cases when you want to create some reusable component (but not standalone one) to use it in multiple different Windows

The usage info:

Usage: brew switch <formula> <version>

Example:

brew switch mysql 5.5.29

You can find the versions installed on your system with info.

brew info mysql

And to see the available versions to install, you can provide a dud version number, as brew will helpfully respond with the available version numbers:

brew switch mysql 0

Update (15.10.2014):

The brew versions command has been removed from brew, but, if you do wish to use this command first run brew tap homebrew/boneyard.

The recommended way to install an old version is to install from the homebrew/versions repo as follows:

$ brew tap homebrew/versions
$ brew install mysql55

For detailed info on all the ways to install an older version of a formula read this answer.

Source -> Remove Block Comment

link

Android 3.2 introduces a new approach to screen sizes,the numbers describing the screen size are all in “dp” units.Mostly we can use

smallest width dp: the smallest width available for application layout in “dp” units; this is the smallest width dp that you will ever encounter in any rotation of the display.

To create one right click on res >>> new >>> Android resource directory

From Available qualifiers window move Smallest Screen Width to Chosen qualifiers

In Screen width window just write the "dp" value starting from you would like Android Studio to use that dimens.

Than change to Project view,right click on your new created resource directory

new >>> Values resource file enter a new file name dimens.xml and you are done.

In order to make it easier I assume that you wish to apply a unique constraint only for column year and the primary key is a column named id.

In order to find duplicate values you should run,

SELECT year, COUNT(id)
FROM YOUR_TABLE
GROUP BY year
HAVING COUNT(id) > 1
ORDER BY COUNT(id);

Using the sql statement above you get a table which contains all the duplicate years in your table. In order to delete all the duplicates except of the the latest duplicate entry you should use the above sql statement.

DELETE
FROM YOUR_TABLE A USING YOUR_TABLE_AGAIN B
WHERE A.year=B.year AND A.id<B.id;

During the installation you got a message Composer successfully installed to: ... this indicates where Composer was installed. But you might also search for the file composer.phar on your system.

Then simply:

1. Delete the file composer.phar.
2. Delete the Cache Folder:
   • Linux: /home/<user>/.composer
   • Windows: C:\Users\<username>\AppData\Roaming\Composer

That's it.

I work with Windows7.

Control Panel - Region and Language - Administrative - Language for non-Unicode programs.

After I set "Change system locale" to English(United States). My default encoding of vs2010 change to Windows-1252. It was gb2312 before.

I created a new .cpp file for a C++ project, after checking in the new file to TFS the encoding show Windows-1252 from the properties page of the file.

Some additional advice for Windows(10) users:

1. If you are using Anaconda Prompt/PowerShell for the first time, type "Anaconda" in the search field of your Windows task bar and you will see the suggested software.
2. Make sure to open the Anaconda prompt as administrator.
3. Always navigate to your user directory or the directory with your Jupyter Notebook files first before running the command. Otherwise you might end up somewhere in your system files and be confused by an unfamiliar file tree.

The correct way to open Jupyter notebook with new data limit from the Anaconda Prompt on my own Windows 10 PC is:

(base) C:\Users\mobarget\Google Drive\Jupyter Notebook>jupyter notebook --NotebookApp.iopub_data_rate_limit=1.0e10

For longitudes use: Decimal(9,6), and latitudes use: Decimal(8,6)

If you're not used to precision and scale parameters, here's a format string visual:

###.###### and ##.######

As of Visual Studio 2012, Microsoft no longer provides the built-in deployment package. If you wish to use this package, you will need to use VS2010.

In 2013 you have several options:

• InstallShield
• WiX
• Roll your own

In my projects I create my own installers from scratch, which, since I do not use Windows Installer, have the advantage of being super fast, even on old machines.

For a 2d numpy array, simply use imshow() may help you:

import matplotlib.pyplot as plt
import numpy as np


def heatmap2d(arr: np.ndarray):
    plt.imshow(arr, cmap='viridis')
    plt.colorbar()
    plt.show()


test_array = np.arange(100 * 100).reshape(100, 100)
heatmap2d(test_array)

This code produces a continuous heatmap.

You can choose another built-in colormap from here.

Yes you can. Since you are using spring, check out @PropertySource anotation.

Anotate your configuration with

@PropertySource("application-${spring.profiles.active}.properties")

You can call it what ever you like, and add inn multiple property files if you like too. Can be nice if you have more sets and/or defaults that belongs to all environments (can be written with @PropertySource{...,...,...} as well).

@PropertySources({
  @PropertySource("application-${spring.profiles.active}.properties"),
  @PropertySource("my-special-${spring.profiles.active}.properties"),
  @PropertySource("overridden.properties")})

Then you can start the application with environment

-Dspring.active.profiles=test

In this example, name will be replaced with application-test-properties and so on.

Expanding on Atrur Klesun's idea... you can just access it by its name if you use getElementById to reach the form. In one line:

document.getElementById('form_id').elements['select_name'].value;

I used it like so for radio buttons and worked fine. I guess it's the same here.

It's Much Simplier!

Pure batch solution. No temp files. No long scripts.

@echo off
setlocal enabledelayedexpansion
set String=abcde12345

for /L %%x in (1,1,1000) do ( if "!String:~%%x!"=="" set Lenght=%%x & goto Result )

:Result 
echo Lenght: !Lenght!

1000 is the maximum estimated string lenght. Change it based on your needs.

While there's no way to connect to multiple servers as different users in a single instance of SSMS, what you're looking for is the following RUNAS syntax:

runas /netonly /user:domain\username program.exe

When you use the "/netonly" switch, you can log in using remote credentials on a domain that you're not currently a member of, even if there's no trust set up. It just tells runas that the credentials will be used for accessing remote resources - the application interacts with the local computer as the currently logged-in user, and interacts with remote computers as the user whose credentials you've given.

You'd still have to run multiple instances of SSMS, but at least you could connect as different windows users in each one.

A similar option to what was posted above by janderson would be so simply use the .GetAttribute method in selenium 2. Using this, you can grab any item that has a specific value or label that you are looking for. This can be used to determine if an element has a label, style, value, etc. A common way to do this is to loop through the items in the drop down until you find the one that you want and select it. In C#

int items = driver.FindElement(By.XPath("//path_to_drop_Down")).Count(); 
for(int i = 1; i <= items; i++)
{
    string value = driver.FindElement(By.XPath("//path_to_drop_Down/option["+i+"]")).GetAttribute("Value1");
    if(value.Conatains("Label_I_am_Looking_for"))
    {
        driver.FindElement(By.XPath("//path_to_drop_Down/option["+i+"]")).Click(); 
        //Clicked on the index of the that has your label / value
    }
}

C99 has log2 (as well as log2f and log2l for float and long double).

Edit: I missed the multi-dimensional aspect of this question, so I'm leaving this here in case it helps people compare one-dimensional arrays

It's an old question, but I was having issues with the speed of using .sort() or sortBy(), so I used this instead:

function arraysContainSameStrings(array1: string[], array2: string[]): boolean {
  return (
    array1.length === array2.length &&
    array1.every((str) => array2.includes(str)) &&
    array2.every((str) => array1.includes(str))
  )
}

It was intended to fail fast, and for my purposes works fine.

If the reason you ask this question is because you want to use Core Bluetooth to advertise as an iBeacon rather than using the standard API, you can easily do so by advertising an NSDictionary such as:

{
    kCBAdvDataAppleBeaconKey = <a7c4c5fa a8dd4ba1 b9a8a240 584f02d3 00040fa0 c5>;
}

See this answer for more information.

You are not creating a separate dictionary for each iframe, you just keep modifying the same dictionary over and over, and you keep adding additional references to that dictionary in your list.

Remember, when you do something like content.append(info), you aren't making a copy of the data, you are simply appending a reference to the data.

You need to create a new dictionary for each iframe.

for iframe in soup.find_all('iframe'):
   info = {}
    ...

Even better, you don't need to create an empty dictionary first. Just create it all at once:

for iframe in soup.find_all('iframe'):
    info = {
        "src":    iframe.get('src'),
        "height": iframe.get('height'),
        "width":  iframe.get('width'),
    }
    content.append(info)

There are other ways to accomplish this, such as iterating over a list of attributes, or using list or dictionary comprehensions, but it's hard to improve upon the clarity of the above code.

It's also possible to pre-allocate large enough memory size. Here is a simple stack implementation: the program is supposed to output 3 and 5.

class Stk {
    static public final int STKSIZ = 256;
    public int[] info = new int[STKSIZ];
    public int sp = 0; // stack pointer
    public void push(int value) {
        info[sp++] = value;
    }
}
class App {
    public static void main(String[] args) {
        Stk stk = new Stk();
        stk.push(3);
        stk.push(5);
        System.out.println(stk.info[0]);
        System.out.println(stk.info[1]);
    }
}

You should put all your words into some kind of Collection or List and then call it like this:

var searchFor = new List<string>();
searchFor.Add("pineapple");
searchFor.Add("mango");

bool containsAnySearchString = searchFor.Any(word => compareString.Contains(word));

If you need to make a case or culture independent search you should call it like this:

bool containsAnySearchString = 
   searchFor.Any(word => compareString.IndexOf
     (word, StringComparison.InvariantCultureIgnoreCase >= 0);

Add an attribute colspan (abbriviation for 'column span') in your top cell (<td>) and set its value to 2. Your table should resembles the following;

<table>
    <tr>
        <td colspan = "2">
            <!-- Merged Columns -->
        </td>
    </tr>

    <tr>
        <td>
            <!-- Column 1 -->
        </td>

        <td>
            <!-- Column 2 -->
        </td>
    </tr>
</table>

See also
     W3 official docs on HTML Tables

This one specifically works for javascript's regular expression parser /[^[\]]+(?=])/g

just run this in the console

var regex = /[^[\]]+(?=])/g;
var str = "This is a test string [more or less]";
var match = regex.exec(str);
match;

It might be better to use communicate:

from subprocess import Popen, PIPE, STDOUT
p = Popen(['myapp'], stdout=PIPE, stdin=PIPE, stderr=PIPE)
stdout_data = p.communicate(input='data_to_write')[0]

"Better", because of this warning:

Use communicate() rather than .stdin.write, .stdout.read or .stderr.read to avoid deadlocks due to any of the other OS pipe buffers filling up and blocking the child process.

Use WebElement.send_keys method to simulate key typing.

name in the code (Username, Password) does not match actual name of the elements (username, password).

username = browser.find_element_by_name('username')
username.send_keys('user1')

password = browser.find_element_by_name('password')
password.send_keys('secret')

form = browser.find_element_by_id('loginForm')
form.submit()

# OR  browser.find_element_by_id('submit').click()

If you use an observable instead of a primitive value, the select will not raise change events on initial binding. You can continue to bind to the change event, rather than subscribing directly to the observable.

An enhancement to MC ND's answer for Windows.
I needed a script to run in WinPE, so I did the following:

@echo off
SET TARGET=192.168.1.1
IF "%~1" NEQ "" SET TARGET=%~1

ping -t %TARGET%|cmd /q /v /c "(pause&pause)>nul & for /l %%a in () do (set /p "data=" && echo(!time! !data!)&ping -n 2 localhost >nul"

This can be hardcoded to a particular IP Address (192.168.1.1 in my example) or take a passed parameter. And as in MC ND's answer, repeats the ping about every 1 second.

If the problem is a serious-enough annoyance to you, you might consider virtualenv. It allows you to create an environment that encapsulates python libraries. You install packages there rather than in the global site-packages directory. Any scripts you run in that environment have access to those packages (and optionally, your global ones as well). I use this a lot when evaluating packages that I am not sure I want/need to install globally. If you decide you don't need the package, it's easy enough to just blow that virtual environment away. It's pretty easy to use. Make a new env:

$>virtualenv /path/to/your/new/ENV

virtual_envt installs setuptools for you in the new environment, so you can do:

$>ENV/bin/easy_install

You can even create your own boostrap scripts that setup your new environment. So, with one command, you can create a new virtual env with, say, python 2.6, psycopg2 and django installed by default (you can can install an env-specific version of python if you want).

You may use Upsert with $setOnInsert operator.

db.Table.update({noExist: true}, {"$setOnInsert": {xxxYourDocumentxxx}}, {upsert: true})

document.getElementById("PdfContentArea").setAttribute('data', path);

OR

var objectEl = document.getElementById("PdfContentArea")

objectEl.outerHTML = objectEl.outerHTML.replace(/data="(.+?)"/, 'data="' + path + '"');

I post my final way of doing it based on the accepted answer:

@SuppressWarnings("serial")
@WebServlet("/")
@MultipartConfig
public final class DataCollectionServlet extends Controller {

    private static final String UPLOAD_LOCATION_PROPERTY_KEY="upload.location";
    private String uploadsDirName;

    @Override
    public void init() throws ServletException {
        super.init();
        uploadsDirName = property(UPLOAD_LOCATION_PROPERTY_KEY);
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        // ...
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        Collection<Part> parts = req.getParts();
        for (Part part : parts) {
            File save = new File(uploadsDirName, getFilename(part) + "_"
                + System.currentTimeMillis());
            final String absolutePath = save.getAbsolutePath();
            log.debug(absolutePath);
            part.write(absolutePath);
            sc.getRequestDispatcher(DATA_COLLECTION_JSP).forward(req, resp);
        }
    }

    // helpers
    private static String getFilename(Part part) {
        // courtesy of BalusC : http://stackoverflow.com/a/2424824/281545
        for (String cd : part.getHeader("content-disposition").split(";")) {
            if (cd.trim().startsWith("filename")) {
                String filename = cd.substring(cd.indexOf('=') + 1).trim()
                        .replace("\"", "");
                return filename.substring(filename.lastIndexOf('/') + 1)
                        .substring(filename.lastIndexOf('\\') + 1); // MSIE fix.
            }
        }
        return null;
    }
}

where :

@SuppressWarnings("serial")
class Controller extends HttpServlet {

    static final String DATA_COLLECTION_JSP="/WEB-INF/jsp/data_collection.jsp";
    static ServletContext sc;
    Logger log;
    // private
    // "/WEB-INF/app.properties" also works...
    private static final String PROPERTIES_PATH = "WEB-INF/app.properties";
    private Properties properties;

    @Override
    public void init() throws ServletException {
        super.init();
        // synchronize !
        if (sc == null) sc = getServletContext();
        log = LoggerFactory.getLogger(this.getClass());
        try {
            loadProperties();
        } catch (IOException e) {
            throw new RuntimeException("Can't load properties file", e);
        }
    }

    private void loadProperties() throws IOException {
        try(InputStream is= sc.getResourceAsStream(PROPERTIES_PATH)) {
                if (is == null)
                    throw new RuntimeException("Can't locate properties file");
                properties = new Properties();
                properties.load(is);
        }
    }

    String property(final String key) {
        return properties.getProperty(key);
    }
}

and the /WEB-INF/app.properties :

upload.location=C:/_/

HTH and if you find a bug let me know

PHP 8 (Left-associative ternary operator change)

Left-associative ternary operator deprecation https://wiki.php.net/rfc/ternary_associativity. The ternary operator has some weird quirks in PHP. This RFC adds a deprecation warning for nested ternary statements. In PHP 8, this deprecation will be converted to a compile time error.

1 ? 2 : 3 ? 4 : 5;   // deprecated
(1 ? 2 : 3) ? 4 : 5; // ok

source: https://stitcher.io/blog/new-in-php-74#numeric-literal-separator-rfc

use auto and min or max width like this:

td {
max-width:50px;
width:auto;
min-width:10px;
}

If you want to speed up your query using join:

For "inner join/join", Don't use where condition instead use it in "ON" condition. Eg:

     select id,name from table1 a  
   join table2 b on a.name=b.name
   where id='123'

 Try,

    select id,name from table1 a  
   join table2 b on a.name=b.name and a.id='123'

For "Left/Right Join", Don't use in "ON" condition, Because if you use left/right join it will get all rows for any one table.So, No use of using it in "On". So, Try to use "Where" condition

You can find the last day of the month by a single line of code:

int maxdt = (new DateTime(dtfrom.Year, dtfrom.Month, 1).AddMonths(1).AddDays(-1)).Day;

It was setting the DNS that did the trick for me. If you are using the Eclipse or Netbeans plugins, you can set it through Default Emulator options, or Emulator Options respectively. You can also use set it from the command line if you start your emulator from CLI. In all cases, the option is "-dns-server x.x.x.x,x.x.x.x" without the quotes. There is no option in the ADB gui to permanently associate the option with your virtual device.

By CSS:

.disable{
   cursor: not-allowed;
   pointer-events: none;
}

Them you can add any decoration to that button. For change the status you can use jquery

$("#id").toggleClass('disable');

This one worked, double quotes when $user and $password are outside single quotes. Single quotes when inside a single quote statement.

mysql --user="$user" --password="$password" --database="$user" --execute='DROP DATABASE '$user'; CREATE DATABASE '$user';'

Version 3 of the YouTube Data API has concrete quota numbers listed in the Google API Console where you register for your API Key. You can use 10,000 units per day. Projects that had enabled the YouTube Data API before April 20, 2016, have a default quota of 50M/day.

You can read about what a unit is here: https://developers.google.com/youtube/v3/getting-started#quota

• A simple read operation that only retrieves the ID of each returned resource has a cost of approximately 1 unit.
• A write operation has a cost of approximately 50 units.
• A video upload has a cost of approximately 1600 units.

If you hit the limits, Google will stop returning results until your quota is reset. You can apply for more than 1M requests per day, but you will have to pay for those extra requests.

Also, you can read about why Google has deferred support to StackOverflow on their YouTube blog here: https://youtube-eng.googleblog.com/2012/09/the-youtube-api-on-stack-overflow_14.html

There are a number of active members on the YouTube Developer Relations team here including Jeff Posnick, Jarek Wilkiewicz, and Ibrahim Ulukaya who all have knowledge of Youtube internals...

UPDATE: Increased the quota numbers to reflect current limits on December 10, 2013.

UPDATE: Decreased the quota numbers from 50M to 1M per day to reflect current limits on May 13, 2016.

UPDATE: Decreased the quota numbers from 1M to 10K per day as of January 11, 2019.

\usepackage{array} in the preamble

then this:

\begin{tabular}{| >{\centering\arraybackslash}m{1in} | >{\centering\arraybackslash}m{1in} |}

note that the "m" for fixed with column is provided by the array package, and will give you vertical centering (if you don't want this just go back to "p"

To get the build in classes (like Array and Hash) to support as_json and to_json, you need to require 'json/add/core' (see the readme for details)

public SmartSaverCals(Context context)
{
    this.context= context;
}

add public to Your constructor.in my case problem solved

Add reference to Microsoft.VisualBasic and use this into your C# code:

string input = Microsoft.VisualBasic.Interaction.InputBox("Prompt", 
                       "Title", 
                       "Default", 
                       0, 
                       0);

To add the refernce: right-click on the References in your Project Explorer window then on Add Reference, and check VisualBasic from that list.

Use CSS, it makes for much easier management of the style itself.

Another solution I've just found here How to render a scaled SVG to a QImage?

from PySide.QtSvg import *
from PySide.QtGui import *


def convertSvgToPng(svgFilepath,pngFilepath,width):
    r=QSvgRenderer(svgFilepath)
    height=r.defaultSize().height()*width/r.defaultSize().width()
    i=QImage(width,height,QImage.Format_ARGB32)
    p=QPainter(i)
    r.render(p)
    i.save(pngFilepath)
    p.end()

PySide is easily installed from a binary package in Windows (and I use it for other things so is easy for me).

However, I noticed a few problems when converting country flags from Wikimedia, so perhaps not the most robust svg parser/renderer.

import datetime

def daterange(start, stop, step=datetime.timedelta(days=1), inclusive=False):
  # inclusive=False to behave like range by default
  if step.days > 0:
    while start < stop:
      yield start
      start = start + step
      # not +=! don't modify object passed in if it's mutable
      # since this function is not restricted to
      # only types from datetime module
  elif step.days < 0:
    while start > stop:
      yield start
      start = start + step
  if inclusive and start == stop:
    yield start

# ...

for date in daterange(start_date, end_date, inclusive=True):
  print strftime("%Y-%m-%d", date.timetuple())

This function does more than you strictly require, by supporting negative step, etc. As long as you factor out your range logic, then you don't need the separate day_count and most importantly the code becomes easier to read as you call the function from multiple places.

After much struggle with this same issue I was able to solve the problem by installing the 32 bit version of the 2010 Access Database Engine. For some reason the 64bit version generates this error...

You can call:

arr.slice(Math.max(arr.length - 5, 1))

If you don't want to exclude the first element, use

arr.slice(Math.max(arr.length - 5, 0))

When creating a maven project in eclipse, the build path is set to JDK 1.5 regardless of settings, which is probably a bug in new project or m2e.

My issue was caused because I have an & character in my Windows user name, so when installed in the default path I was getting the following error after running bin/studio.bat

                                               |
                                               v notice broken path
The system cannot find the file C:\Users\Daniel \studio64.exe.vmoptions.
Exception in thread "main" java.lang.NoClassDefFoundError: com/intellij/idea/Main
Caused by: java.lang.ClassNotFoundException: com.intellij.idea.Main
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: com.intellij.idea.Main.  Program will exit.

So I uninstalled and reinstalled it to program files and it launches fine now.

The Jon Skeet answer addresses well the two scenarios (map with null value and not null value) in an efficient way.

About the number entries and the efficiency concern, I would like add something.

I have a HashMap with say a 1.000 entries and I am looking at improving the efficiency. If the HashMap is being accessed very frequently, then checking for the key existence at every access will lead to a large overhead.

A map with 1.000 entries is not a huge map.
As well as a map with 5.000 or 10.000 entries.
Map are designed to make fast retrieval with such dimensions.

Now, it assumes that hashCode() of the map keys provides a good distribution.

If you may use an Integer as key type, do it.
Its hashCode() method is very efficient since the collisions are not possible for unique int values :

public final class Integer extends Number implements Comparable<Integer> {
    ...
    @Override
    public int hashCode() {
        return Integer.hashCode(value);
    }

    public static int hashCode(int value) {
        return value;
    }
    ...
}

If for the key, you have to use another built-in type as String for example that is often used in Map, you may have some collisions but from 1 thousand to some thousands of objects in the Map, you should have very few of it as the String.hashCode() method provides a good distribution.

If you use a custom type, override hashCode() and equals() correctly and ensure overall that hashCode() provides a fair distribution.
You may refer to the item 9 of Java Effective refers it.
Here's a post that details the way.

When people talk about the ".net framework" they tend to be combining two main areas - the runtime library and the virtual machine that actually runs the .net code.

When you create a class library in Visual Studio in C#, the DLL follows a prescribed format - very roughly, there is section that contains meta data that describes what classes are included in it and what functions they have, etc.. and that describes where in the binary those objects exist. This common .net format is what allows libraries to be shared between .net languages (C#, VB.Net, F# and others) easily. Although much of the .net "runtime library" is written in C# now (I believe), you can imagine how many of them could have been written in unmanaged languages but arranged in this prescribed format so that they could be consumed by .net languages.

The real "meat" of the library that you build consists of CIL ("Common Intermediate Language") which is a bit like the assembly language of .net - again, this language is the common output of all .net languages, which is what makes .net libraries consumable by any .net language.

Using the tool "ildasm.exe", which is freely available in Microsoft SDKs (and might already be on your computer), you can see how C# code is converted into meta data and IL. I've included a sample at the bottom of this answer as an example.

When you run execute .net code, what is commonly happening is the .net virtual machine is reading that IL and processing it. This is the other side of .net and, again, you can likely imagine that this could easily be written in an unmanaged language - it "only" needs to read VM instructions and run them (and integrate with the garbage collector, which also need not be .net code).

What I've described is (again, roughly) what happens when you build an executable in Visual Studio (for more information, I highly recommend the book "CLR via C# by Jeffrey Richter" - it's very detailed and excellently written).

However, there are times that you might write C# that will not be executed within a .net environment - for example, Bridge.NET "compiles" C# code into JavaScript which is then run in the browser (the team that produce it have gone to the effort of writing versions of the .net runtime library that are written in JavaScript and so the power and flexibility of the .net library is available to the generated JavaScript). This is a perfect example of the separation between C# and .net - it's possible to write C# for different "targets"; you might target the .net runtime environment (when you build an executable) or you might target the browser environment (when you use Bridge.NET).

A (very) simple example class:

using System;

namespace Example
{
    public class Class1
    {
        public void SayHello()
        {
            Console.WriteLine("Hello");
        }
    }
}

The resulting meta data and IL (retrieved via ildasm.exe):

// Metadata version: v4.0.30319
.assembly extern mscorlib
{
  .publickeytoken = (B7 7A 5C 56 19 34 E0 89 )                         // .z\V.4..
  .ver 4:0:0:0
}
.assembly Example
{
  .custom instance void [mscorlib]System.Runtime.CompilerServices.CompilationRelaxationsAttribute::.ctor(int32) = ( 01 00 08 00 00 00 00 00 ) 
  .custom instance void [mscorlib]System.Runtime.CompilerServices.RuntimeCompatibilityAttribute::.ctor() = ( 01 00 01 00 54 02 16 57 72 61 70 4E 6F 6E 45 78   // ....T..WrapNonEx
                                                                                                            63 65 70 74 69 6F 6E 54 68 72 6F 77 73 01 )       // ceptionThrows.

  // --- The following custom attribute is added automatically, do not uncomment -------
  //  .custom instance void [mscorlib]System.Diagnostics.DebuggableAttribute::.ctor(valuetype [mscorlib]System.Diagnostics.DebuggableAttribute/DebuggingModes) = ( 01 00 07 01 00 00 00 00 ) 

  .custom instance void [mscorlib]System.Reflection.AssemblyTitleAttribute::.ctor(string) = ( 01 00 0A 54 65 73 74 49 4C 44 41 53 4D 00 00 )    // ...TestILDASM..
  .custom instance void [mscorlib]System.Reflection.AssemblyDescriptionAttribute::.ctor(string) = ( 01 00 00 00 00 ) 
  .custom instance void [mscorlib]System.Reflection.AssemblyConfigurationAttribute::.ctor(string) = ( 01 00 00 00 00 ) 
  .custom instance void [mscorlib]System.Reflection.AssemblyCompanyAttribute::.ctor(string) = ( 01 00 00 00 00 ) 
  .custom instance void [mscorlib]System.Reflection.AssemblyProductAttribute::.ctor(string) = ( 01 00 0A 54 65 73 74 49 4C 44 41 53 4D 00 00 )    // ...TestILDASM..
  .custom instance void [mscorlib]System.Reflection.AssemblyCopyrightAttribute::.ctor(string) = ( 01 00 12 43 6F 70 79 72 69 67 68 74 20 C2 A9 20   // ...Copyright .. 
                                                                                                  20 32 30 31 36 00 00 )                            //  2016..
  .custom instance void [mscorlib]System.Reflection.AssemblyTrademarkAttribute::.ctor(string) = ( 01 00 00 00 00 ) 
  .custom instance void [mscorlib]System.Runtime.InteropServices.ComVisibleAttribute::.ctor(bool) = ( 01 00 00 00 00 ) 
  .custom instance void [mscorlib]System.Runtime.InteropServices.GuidAttribute::.ctor(string) = ( 01 00 24 31 39 33 32 61 32 30 65 2D 61 37 36 64   // ..$1932a20e-a76d
                                                                                                  2D 34 36 33 35 2D 62 36 38 66 2D 36 63 35 66 36   // -4635-b68f-6c5f6
                                                                                                  32 36 36 31 36 37 62 00 00 )                      // 266167b..
  .custom instance void [mscorlib]System.Reflection.AssemblyFileVersionAttribute::.ctor(string) = ( 01 00 07 31 2E 30 2E 30 2E 30 00 00 )             // ...1.0.0.0..
  .custom instance void [mscorlib]System.Runtime.Versioning.TargetFrameworkAttribute::.ctor(string) = ( 01 00 1C 2E 4E 45 54 46 72 61 6D 65 77 6F 72 6B   // ....NETFramework
                                                                                                        2C 56 65 72 73 69 6F 6E 3D 76 34 2E 35 2E 32 01   // ,Version=v4.5.2.
                                                                                                        00 54 0E 14 46 72 61 6D 65 77 6F 72 6B 44 69 73   // .T..FrameworkDis
                                                                                                        70 6C 61 79 4E 61 6D 65 14 2E 4E 45 54 20 46 72   // playName..NET Fr
                                                                                                        61 6D 65 77 6F 72 6B 20 34 2E 35 2E 32 )          // amework 4.5.2
  .hash algorithm 0x00008004
  .ver 1:0:0:0
}
.module Example.dll
// MVID: {80A91E4C-0994-4773-9B73-2C4977BB1F17}
.imagebase 0x10000000
.file alignment 0x00000200
.stackreserve 0x00100000
.subsystem 0x0003       // WINDOWS_CUI
.corflags 0x00000001    //  ILONLY
// Image base: 0x05DB0000

// =============== CLASS MEMBERS DECLARATION ===================

.class public auto ansi beforefieldinit Example.Class1
       extends [mscorlib]System.Object
{
  .method public hidebysig instance void 
          SayHello() cil managed
  {
    // Code size       13 (0xd)
    .maxstack  8
    IL_0000:  nop
    IL_0001:  ldstr      "Hello"
    IL_0006:  call       void [mscorlib]System.Console::WriteLine(string)
    IL_000b:  nop
    IL_000c:  ret
  } // end of method Class1::SayHello

  .method public hidebysig specialname rtspecialname 
          instance void  .ctor() cil managed
  {
    // Code size       8 (0x8)
    .maxstack  8
    IL_0000:  ldarg.0
    IL_0001:  call       instance void [mscorlib]System.Object::.ctor()
    IL_0006:  nop
    IL_0007:  ret
  } // end of method Class1::.ctor

} // end of class Example.Class1

// =============================================================

As suggested by @rqLizard, you can use openssl_encrypt/openssl_decrypt PHP functions instead which provides a much better alternative to implement AES (The Advanced Encryption Standard) also known as Rijndael encryption.

As per the following Scott's comment at php.net:

If you're writing code to encrypt/encrypt data in 2015, you should use openssl_encrypt() and openssl_decrypt(). The underlying library (libmcrypt) has been abandoned since 2007, and performs far worse than OpenSSL (which leverages AES-NI on modern processors and is cache-timing safe).

Also, MCRYPT_RIJNDAEL_256 is not AES-256, it's a different variant of the Rijndael block cipher. If you want AES-256 in mcrypt, you have to use MCRYPT_RIJNDAEL_128 with a 32-byte key. OpenSSL makes it more obvious which mode you are using (i.e. aes-128-cbc vs aes-256-ctr).

OpenSSL also uses PKCS7 padding with CBC mode rather than mcrypt's NULL byte padding. Thus, mcrypt is more likely to make your code vulnerable to padding oracle attacks than OpenSSL.

Finally, if you are not authenticating your ciphertexts (Encrypt Then MAC), you're doing it wrong.

Further reading:

• Using Encryption and Authentication Correctly (for PHP developers).
• If You're Typing the Word MCRYPT Into Your PHP Code, You're Doing It Wrong.

Code examples

Example #1

AES Authenticated Encryption in GCM mode example for PHP 7.1+

<?php
//$key should have been previously generated in a cryptographically safe way, like openssl_random_pseudo_bytes
$plaintext = "message to be encrypted";
$cipher = "aes-128-gcm";
if (in_array($cipher, openssl_get_cipher_methods()))
{
    $ivlen = openssl_cipher_iv_length($cipher);
    $iv = openssl_random_pseudo_bytes($ivlen);
    $ciphertext = openssl_encrypt($plaintext, $cipher, $key, $options=0, $iv, $tag);
    //store $cipher, $iv, and $tag for decryption later
    $original_plaintext = openssl_decrypt($ciphertext, $cipher, $key, $options=0, $iv, $tag);
    echo $original_plaintext."\n";
}
?>

Example #2

AES Authenticated Encryption example for PHP 5.6+

<?php
//$key previously generated safely, ie: openssl_random_pseudo_bytes
$plaintext = "message to be encrypted";
$ivlen = openssl_cipher_iv_length($cipher="AES-128-CBC");
$iv = openssl_random_pseudo_bytes($ivlen);
$ciphertext_raw = openssl_encrypt($plaintext, $cipher, $key, $options=OPENSSL_RAW_DATA, $iv);
$hmac = hash_hmac('sha256', $ciphertext_raw, $key, $as_binary=true);
$ciphertext = base64_encode( $iv.$hmac.$ciphertext_raw );

//decrypt later....
$c = base64_decode($ciphertext);
$ivlen = openssl_cipher_iv_length($cipher="AES-128-CBC");
$iv = substr($c, 0, $ivlen);
$hmac = substr($c, $ivlen, $sha2len=32);
$ciphertext_raw = substr($c, $ivlen+$sha2len);
$original_plaintext = openssl_decrypt($ciphertext_raw, $cipher, $key, $options=OPENSSL_RAW_DATA, $iv);
$calcmac = hash_hmac('sha256', $ciphertext_raw, $key, $as_binary=true);
if (hash_equals($hmac, $calcmac))//PHP 5.6+ timing attack safe comparison
{
    echo $original_plaintext."\n";
}
?>

Example #3

Based on above examples, I've changed the following code which aims at encrypting user's session id:

class Session {

  /**
   * Encrypts the session ID and returns it as a base 64 encoded string.
   *
   * @param $session_id
   * @return string
   */
  public function encrypt($session_id) {
    // Get the MD5 hash salt as a key.
    $key = $this->_getSalt();
    // For an easy iv, MD5 the salt again.
    $iv = $this->_getIv();
    // Encrypt the session ID.
    $encrypt = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $session_id, MCRYPT_MODE_CBC, $iv);
    // Base 64 encode the encrypted session ID.
    $encryptedSessionId = base64_encode($encrypt);
    // Return it.
    return $encryptedSessionId;
  }

  /**
   * Decrypts a base 64 encoded encrypted session ID back to its original form.
   *
   * @param $encryptedSessionId
   * @return string
   */
  public function decrypt($encryptedSessionId) {
    // Get the MD5 hash salt as a key.
    $key = $this->_getSalt();
    // For an easy iv, MD5 the salt again.
    $iv = $this->_getIv();
    // Decode the encrypted session ID from base 64.
    $decoded = base64_decode($encryptedSessionId);
    // Decrypt the string.
    $decryptedSessionId = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $decoded, MCRYPT_MODE_CBC, $iv);
    // Trim the whitespace from the end.
    $session_id = rtrim($decryptedSessionId, "\0");
    // Return it.
    return $session_id;
  }

  public function _getIv() {
    return md5($this->_getSalt());
  }

  public function _getSalt() {
    return md5($this->drupal->drupalGetHashSalt());
  }

}

into:

class Session {

  const SESS_CIPHER = 'aes-128-cbc';

  /**
   * Encrypts the session ID and returns it as a base 64 encoded string.
   *
   * @param $session_id
   * @return string
   */
  public function encrypt($session_id) {
    // Get the MD5 hash salt as a key.
    $key = $this->_getSalt();
    // For an easy iv, MD5 the salt again.
    $iv = $this->_getIv();
    // Encrypt the session ID.
    $ciphertext = openssl_encrypt($session_id, self::SESS_CIPHER, $key, $options=OPENSSL_RAW_DATA, $iv);
    // Base 64 encode the encrypted session ID.
    $encryptedSessionId = base64_encode($ciphertext);
    // Return it.
    return $encryptedSessionId;
  }

  /**
   * Decrypts a base 64 encoded encrypted session ID back to its original form.
   *
   * @param $encryptedSessionId
   * @return string
   */
  public function decrypt($encryptedSessionId) {
    // Get the Drupal hash salt as a key.
    $key = $this->_getSalt();
    // Get the iv.
    $iv = $this->_getIv();
    // Decode the encrypted session ID from base 64.
    $decoded = base64_decode($encryptedSessionId, TRUE);
    // Decrypt the string.
    $decryptedSessionId = openssl_decrypt($decoded, self::SESS_CIPHER, $key, $options=OPENSSL_RAW_DATA, $iv);
    // Trim the whitespace from the end.
    $session_id = rtrim($decryptedSessionId, '\0');
    // Return it.
    return $session_id;
  }

  public function _getIv() {
    $ivlen = openssl_cipher_iv_length(self::SESS_CIPHER);
    return substr(md5($this->_getSalt()), 0, $ivlen);
  }

  public function _getSalt() {
    return $this->drupal->drupalGetHashSalt();
  }

}

To clarify, above change is not a true conversion since the two encryption uses a different block size and a different encrypted data. Additionally, the default padding is different, MCRYPT_RIJNDAEL only supports non-standard null padding. ^@zaph

Additional notes (from the @zaph's comments):

• Rijndael 128 (MCRYPT_RIJNDAEL_128) is equivalent to AES, however Rijndael 256 (MCRYPT_RIJNDAEL_256) is not AES-256 as the 256 specifies a block size of 256-bits, whereas AES has only one block size: 128-bits. So basically Rijndael with a block size of 256-bits (MCRYPT_RIJNDAEL_256) has been mistakenly named due to the choices by the mcrypt developers. ^@zaph
• Rijndael with a block size of 256 may be less secure than with a block size of 128-bits because the latter has had much more reviews and uses. Secondly, interoperability is hindered in that while AES is generally available, where Rijndael with a block size of 256-bits is not.

• Encryption with different block sizes for Rijndael produces different encrypted data.

  For example, MCRYPT_RIJNDAEL_256 (not equivalent to AES-256) defines a different variant of the Rijndael block cipher with size of 256-bits and a key size based on the passed in key, where aes-256-cbc is Rijndael with a block size of 128-bits with a key size of 256-bits. Therefore they're using different block sizes which produces entirely different encrypted data as mcrypt uses the number to specify the block size, where OpenSSL used the number to specify the key size (AES only has one block size of 128-bits). So basically AES is Rijndael with a block size of 128-bits and key sizes of 128, 192 and 256 bits. Therefore it's better to use AES, which is called Rijndael 128 in OpenSSL.

In chrome you can find easily not only your JS version but also a flash version. All you need is to type chrome://version/ in a command line and you will get something like this:

A UDF will only return a value it won't allow you to change the properties of a cell/sheet/workbook. Move your code to a Worksheet_Change event or similar to change properties.

Eg

Private Sub worksheet_change(ByVal target As Range)
  target.Font.Bold = True
End Sub

You shouldn't be importing android.R. That should be automatically generated and recognized. This question contains a lot of helpful tips if you get some error referring to R after removing the import.

Some basic steps after removing the import, if those errors appear:

• Clean your build, then rebuild
• Make sure there are no errors or typos in your XML files
• Make sure your resource names consist of [a-z0-9.]. Capitals or symbols are not allowed for some reason.
• Perform a Gradle sync (via Tools > Android > Sync Project with Gradle Files)

I'm going to guess you aren't getting errors or you would've mentioned them. If that's the case, try removing the href attribute value so the page doesn't navigate away before your code is executed. In Angular it's perfectly acceptable to leave href attributes blank.

<a href="" data-router="article" ng-click="changeListName('metro')">

Also I don't know what data-router is doing but if you still aren't getting the proper result, that could be why.

This is super old, but I figured I'd add my 2c. DATE_FORMAT does indeed return a string, but I was looking for the CAST function, in the situation that I already had a datetime string in the database and needed to pattern match against it:

http://dev.mysql.com/doc/refman/5.0/en/cast-functions.html

In this case, you'd use:

CAST(date_value AS char)

This answers a slightly different question, but the question title seems ambiguous enough that this might help someone searching.

Just loop...

foreach(var table in DataSet1.Tables) {
    foreach(var col in table.Columns) {
       ...
    }
    foreach(var row in table.Rows) {
        object[] values = row.ItemArray;
        ...
    }
}

If you move from iframes, you may get lost in your page, best way to execute some jquery without issue (with selenimum/python/gecko):

# 1) Get back to the main body page
driver.switch_to.default_content()

# 2) Download jquery lib file to your current folder manually & set path here
with open('./_lib/jquery-3.3.1.min.js', 'r') as jquery_js: 
    # 3) Read the jquery from a file
    jquery = jquery_js.read() 
    # 4) Load jquery lib
    driver.execute_script(jquery)
    # 5) Execute your command 
    driver.execute_script('$("#myId").click()')

You could in theory piggyback addEventListener and removeEventListener to add remove a flag to the 'this' object. Ugly and I haven't tested ...

And even simpler using IN:

SELECT ads.*, location.county 
  FROM ads
  LEFT JOIN location ON location.county = ads.county_id
  WHERE ads.published = 1 
        AND ads.type = 13
        AND ads.county_id IN (2,5,7,9)

suppose you're posting a html form with this:

<input type="text" name="username">

If using raw cgi:

import cgi
form = cgi.FieldStorage()
print form["username"]

If using Django, Pylons, Flask or Pyramid:

print request.GET['username'] # for GET form method
print request.POST['username'] # for POST form method

Using Turbogears, Cherrypy:

from cherrypy import request
print request.params['username']

Web.py:

form = web.input()
print form.username

Werkzeug:

print request.form['username']

If using Cherrypy or Turbogears, you can also define your handler function taking a parameter directly:

def index(self, username):
    print username

Google App Engine:

class SomeHandler(webapp2.RequestHandler):
    def post(self):
        name = self.request.get('username') # this will get the value from the field named username
        self.response.write(name) # this will write on the document

So you really will have to choose one of those frameworks.

Functions cannot be used to modify base table information, use a stored procedure.

You can also use an oracle defined collection

DECLARE 
  arrayvalues sys.odcivarchar2list;
BEGIN
  arrayvalues := sys.odcivarchar2list('Matt','Joanne','Robert');
  FOR x IN ( SELECT m.column_value m_value
               FROM table(arrayvalues) m )
  LOOP
    dbms_output.put_line (x.m_value||' is a good pal');
  END LOOP;
END;

I would use in-memory array. But with the .COUNT improvement suggested by uziberia:

DECLARE
  TYPE t_people IS TABLE OF varchar2(10) INDEX BY PLS_INTEGER;
  arrayvalues t_people;
BEGIN
  SELECT *
   BULK COLLECT INTO arrayvalues
   FROM (select 'Matt' m_value from dual union all
         select 'Joanne'       from dual union all
         select 'Robert'       from dual
    )
  ;
  --
  FOR i IN 1 .. arrayvalues.COUNT
  LOOP
    dbms_output.put_line(arrayvalues(i)||' is my friend');
  END LOOP;
END;

Another solution would be to use a Hashmap like @Jchomel did here.

NB:

With Oracle 12c you can even query arrays directly now!

Open the find and replace dialog (press CTRL+H).

Then select Regular expression in the 'Search Mode' section at the bottom.

In the Find what field enter this: [\r\n]+

In the Replace with: , 

There is a space after the comma.

This will also replace lines like

Apples

Apricots
Pear

Avocados
Bananas

Where there are empty lines.

If your lines have trailing blank spaces you should remove those first. The simplest way to achieve this is

EDIT -> Blank Operations -> Trim Trailing Space

OR

TextFX -> TextFX Edit -> Trim trailing spaces

Be sure to set the Search Mode to "Regular expression".

import pickle
f=open("filename.dat","rb")
try:
    while True:
        x=pickle.load(f)
        print x
except EOFError:
    pass
f.close()

Bash can get the last part of a path without having to call the external basename:

subdir="/path/to/whatever/${1##*/}"