Tutorial by Topics: v

@"verbatim strings are strings whose contents are not escaped, so in this case \n does not represent the newline character but two individual characters: \ and n. Verbatim strings are created prefixing the string contents with the @ character" @"To escape quotation marks, &qu...

The using keyword is both a directive (this topic) and a statement. For the using statement (i.e. to encapsulate the scope of an IDisposable object, ensuring that outside of that scope the object becomes cleanly disposed) please see Using Statement.

An event is a notification that something has occurred (such as a mouse click) or, in some cases, is about to occur (such as a price change). Classes can define events and their instances (objects) may raise these events. For instance, a Button may contain a Click event that gets raised when a user...

The process of overload resolution is described in the C# specification, section 7.5.3. Also relevant are the sections 7.5.2 (type inference) and 7.6.5 (invocation expressions). How overload resolution works will probably be changed in C# 7. The design notes indicate that Microsoft will roll out ...

The Java programming language is... General-purpose: It is designed to be used for writing software in a wide variety of application domains, and lacks specialized features for any specific domain. Class-based: Its object structure is defined in classes. Class instances always have those...

The NavigationView represents a standard navigation menu for application. The menu contents can be populated by a menu resource file. Before using the NavigationView you must add the design support library dependency in the build.gradle file: dependencies { compile 'com.android.support:de...

Note that a ViewTreeObserver instance associated with a View instance can become invalid while that View is still alive. From the View.getViewTreeObserver javadocs: // The returned ViewTreeObserver observer is not guaranteed to remain // valid for the lifetime of this View. If the caller of this...

public type name[ = value]; private type name[ = value]; protected type name[ = value]; type name[ = value]; public class name{ class name{ From the Java tutorial: Access level modifiers determine whether other classes can use a particular field or invoke a particular method. There a...

A Service runs in background to perform long-running operations or to perform work for remote processes. A service does not provide any user interface it runs only in background with User’s input. For example a service can play music in the background while the user is in a different App, or it migh...

Documentation for java code is often generated using javadoc. Javadoc was created by Sun Microsystems for the purpose of generating API documentation in HTML format from java source code. Using the HTML format gives the convenience of being able to hyperlink related documents together. /** -- ...

The Executor interface in Java provides a way of decoupling task submission from the mechanics of how each task will be run, including details of thread use, scheduling, etc. An Executor is normally used instead of explicitly creating threads. With Executors, developers won't have to significantly r...

The 8 primitive data types byte, short, int, long, char, boolean, float, and double are the types that store most raw numerical data in Java programs. int aInt = 8; // The defining (number) part of this int declaration is called a literal. int hexInt = 0x1a; // = 26; You can define literals...

WebView is a view that display web pages inside your application. By this you can add your own URL. Please don't forget to add permission in your Android manifest file <uses-permission android:name="android.permission.INTERNET" />

An Android application needs to run on all kinds of devices. Each device may have a different version on Android running on it. Now, each Android version might not support all the features that your app requires, and so while building an app, you need to keep the minimum and maximum Android version...

Nashorn is a JavaScript engine developed in Java by Oracle, and has been released with Java 8. Nashorn allows embedding Javascript in Java applications via JSR-223 and allows to develop standalone Javascript applications, and it provides better runtime performance and better compliance with the ECMA...

ParameterDetailsJNIEnvPointer to the JNI environmentjobjectThe object which invoked the non-static native methodjclassThe class which invoked the static native method Setting up JNI requires both a Java and a native compiler. Depending on the IDE and OS, there is some setting up required. A guide...

RecyclerView is a more advanced version of List View with improved performance and additional features. ParameterDetailAdapterA subclass of RecyclerView.Adapter responsible for providing views that represent items in a data setPositionThe position of a data item within an AdapterIndexThe index ...