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Information Inheritance allows you to derive a new class from an existing class. You do this using the INHERITING FROM addition in the CLASS subclass DEFINITION INHERITING FROM superclass. statement. The new class subclass inherits all of the components of the existing class superclass. The n...

Information The ABSTRACT and FINAL additions to the METHODS and CLASS statements allow you to define abstract and final methods or classes. An abstract method is defined in an abstract class and cannot be implemented in that class. Instead, it is implemented in a subclass of the class. Abstra...

Example : CLLocationManager *locationManager = [[CLLocationManager alloc] init]; locationManager.delegate = self; locationManager.desiredAccuracy = kCLLocationAccuracyBest; locationManager.distanceFilter = 5; E.g. In the above example code above, location changes of less than 5 m...

Any permission required by your application to access a protected part of the API or to interact with other applications must be declared in your AndroidManifest.xml file. This is done using the <uses-permission /> tag. Syntax <uses-permission android:name="string" android...

An instance method is a method that's available on a particular instance of a class, after the instance has been instantiated: MyClass *instance = [MyClass new]; [instance someInstanceMethod]; Here's how you define one: @interface MyClass : NSObject - (void)someInstanceMethod; // "-&qu...

Collection initialization syntax can be used when instantiating any class which implements IEnumerable and has a method named Add which takes a single parameter. In previous versions, this Add method had to be an instance method on the class being initialized. In C#6, it can also be an extension me...

Life-cycle hooks are also exposed as DSL elements, where later invocations of the methods shown below will replace the contents of the respective hooks: val a = actor(new Act { whenStarting { testActor ! "started" } whenStopping { testActor ! "stopped" } }) The above i...

C# statements executes in either checked or unchecked context. In a checked context, arithmetic overflow raises an exception. In an unchecked context, arithmetic overflow is ignored and the result is truncated. short m = 32767; short n = 32767; int result1 = checked((short)(m + n)); //will ...

First you create a new Cordova project: cordova create HelloWorld my.application.identifier AppName This will create a blank Cordova project in the HelloWorld folder with identifier my.application.identifier (which should be unique for each application) with name AppName. Next you add th...

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <path d="M 10,10 L 100,50" stroke="blue" stroke-width="5" /> </svg> Result:

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <path d="M 10,10 H 200" stroke="orange" stroke-width="5" /> </svg> Result:

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <path d="M 10,10 l 90,90 M 100,10 l -90,90" stroke="red" stroke-width="10" /> </svg> Result:

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <path d="M 10,10 V 200" stroke="green" stroke-width="5" /> </svg> Result:

The goal with using anonymous structs is to decode only the information we care about without littering our app with types that are used only in a single function. jsonBlob := []byte(` { "_total": 1, "_links": { "self": "https://api.twitch.tv/k...

Borland started out with a Pascal compiler that they called "Turbo Pascal". This was followed by compilers for other languages: C/C++, Prolog and Fortran. They also produced an assembler called "Turbo Assembler", which, following Microsoft's naming convention, they called "T...

YASM is a complete rewrite of NASM, but is compatible with both Intel and AT&T syntaxes.

Loop control statements are used to change the flow of execution from its normal sequence. When execution leaves a scope, all automatic objects that were created in that scope are destroyed. The break and continue are loop control statements. The break statement terminates a loop without any furthe...

ansible-playbook -i path/to/static-inventory-file -l myhost myplaybook.yml

ansible-playbook -i path/to/dynamic-inventory-script.py -l myhost myplaybook.yml See dynamic inventory for more details.

In order to get a view to slowly fade in or out of view, use an ObjectAnimator. As seen in the code below, set a duration using .setDuration(millis) where the millis parameter is the duration (in milliseconds) of the animation. In the below code, the views will fade in / out over 500 milliseconds, o...