Tutorial by Examples: st

audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); audioManager.requestAudioFocus(audioListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN_TRANSIENT); changedListener = new AudioManager.OnAudioFocusChangeListener() { @Override public void onAudioFocu...

audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); audioManager.requestAudioFocus(audioListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN); changedListener = new AudioManager.OnAudioFocusChangeListener() { @Override public void onAudioFocusChange(in...

If you've got multiple implementations of the same interface, Spring needs to know which one it should autowire into a class. I'm going to use a Validator pattern in this example.1 Foo Class: public class Foo { private String name; private String emailAddress; private String erro...

If you've got an interface with a generic type parameter, Spring can use that to only autowire implementations that implement a type parameter you specify. Interface: public interface GenericValidator<T> { public T validate(T object); } Foo Validator Class: @Component public class...

This example shows how to use fast enumeration in order to traverse through an NSArray. With this way you can also track current object's index while traversing. Suppose you have an array, NSArray *weekDays = @[@"Monday", @"Tuesday", @"Wednesday", @"Thursday&quot...

Create engaging user interfaces for Windows Desktop Applications with Blend for Visual Studio, the premier professional design tool for XAML applications. Build beautiful transitions and visualizations using Blend’s full suite of vector drawing tools, powerful template editing features, real-time an...

;WITH cte_query_1 AS ( SELECT * FROM database.table1 ), cte_query_2 AS ( SELECT * FROM database.table2 ) SELECT * FROM cte_query_1 WHERE cte_query_one.fk IN ( SELECT PK FROM cte_query_2 ) With common table expressions, it is possible to create multiple ...

Add spring-boot-starter-web dependency to pom.xml. You may skip version tag, if you are using spring-boot-starter-parent as the parent of your pom.xml (reference). <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-star...

If you would like to use vim in a manner similar to sed, you may use the -c flag to run an ex command from the command line. This command will run automatically before presenting the file to you. For example, to replace foo with bar: vim file.txt -c "s/foo/bar" This will open up the fi...

// this function add custom interval (5 minutes) to the $schedules function five_minutes_interval( $schedules ) { $schedules['five_minutes'] = array( 'interval' => 60 * 5, 'display' => '5 minutes'; ); return $schedules; } // add a custom in...

Generally, it's not a good idea to use a regular expression to parse a complex structure. But it can be done. For instance, you might want to load data into hive table and fields are separated by comma but complex types like array are separated by a "|". Files contain records with all fiel...

Enable the module by typing: sudo a2enmod ssl Restart the web server (apache2) so the change is recognized: sudo service apache2 restart Optional (but a good idea): Create a directory that will contain our new certificate files: sudo mkdir /etc/apache2/ssl Create the key and self-signed ...

Test the application using the development web server, which is included with the App Engine SDK. Run the following Maven command from within your helloworld directory, to compile your app and start the development web server: mvn appengine:devserver The web server is now listening for re...

Detailed instructions on getting sybase set up or installed.

Slices are pointers to arrays, with the length of the segment, and its capacity. They behave as pointers, and assigning their value to another slice, will assign the memory address. To copy a slice value to another, use the built-in copy function: func copy(dst, src []Type) int (returns the amount o...

import sympy as sy x1, x2 = sy.symbols("x1 x2") equations = [ sy.Eq( 2*x1 + 1*x2 , 10 ), sy.Eq( 1*x1 - 2*x2 , 11 ) ] print sy.solve(equations) # Result: {x1: 31/5, x2: -12/5}

Sometimes we want to give extra information to our user with colors (for example red means something wrong has happened) We can change toast message background color using setting a color filter to the view which our toast give us (here I use a ColorMatrixColorFilter): Toast t = Toast.MakeText(con...

We can change our toast using SetGravity method. This method takes three parameters: first is gravity of toast on screen and two others set toast offset from the starting position (which is set by the first parameter): //Toast at bottom left corner of screen Toast t = Toast.MakeText(context, mess...

Detailed instructions on getting clion set up or installed.

from __future__ import print_function import os, sys from PIL import Image for infile in sys.argv[1:]: f, e = os.path.splitext(infile) outfile = f + ".jpg" if infile != outfile: try: Image.open(infile).save(outfile) except IOError: ...