Tutorial by Examples: l

Annotation @XmlAccessorType determines whether fields/properties will be automatically serialized to XML. Note, that field and method annotations @XmlElement, @XmlAttribute or @XmlTransient take precedence over the default settings. public class XmlAccessTypeExample { @XmlAccessorType(XmlAccessT...

Annotations @XmlElement, @XmlAttribute or @XmlTransient and other in package javax.xml.bind.annotation allow the programmer to specify which and how marked fields or properties should be serialized. @XmlAccessorType(XmlAccessType.NONE) // we want no automatic field/property marshalling public cla...

The == and != operators are binary operators that evaluate to true or false depending on whether the operands are equal. The == operator gives true if the operands are equal and false otherwise. The != operator gives false if the operands are equal and true otherwise. These operators can be used ...

To create your own Iterable as with any interface you just implement the abstract methods in the interface. For Iterable there is only one which is called iterator(). But its return type Iterator is itself an interface with three abstract methods. You can return an iterator associated with some coll...

WebView wv = new WebView(); WebEngine we = wv.getEngine(); we.load("https://stackoverflow.com"); WebView is the UI shell around the WebEngine. Nearly all controls for non UI interaction with a page are done through the WebEngine class.

import static java.awt.BorderLayout.*; import javax.swing.*; import java.awt.BorderLayout; JPanel root = new JPanel(new BorderLayout()); root.add(new JButton("East"), EAST); root.add(new JButton("West"), WEST); root.add(new JButton("North"), NORTH); root.add(...

import javax.swing.*; import java.awt.FlowLayout; public class FlowExample { public static void main(String[] args){ SwingUtilities.invokeLater(new Runnable(){ @Override public void run(){ JPanel panel = new JPanel(); pa...

PrinterJob pJ = PrinterJob.createPrinterJob(); if (pJ != null) { boolean success = pJ.showPrintDialog(primaryStage);// this is the important line if (success) { pJ.endJob(); } }

var person = new Person { Address = null; }; var city = person.Address.City; //throws a NullReferenceException var nullableCity = person.Address?.City; //returns the value of null This effect can be chained together: var person = new Person { Address = new Address { ...

You can use custom delimiters (regular expressions) with Scanner, with .useDelimiter(","), to determine how the input is read. This works similarly to String.split(...). For example, you can use Scanner to read from a list of comma separated values in a String: Scanner scanner = null; tr...

BindingList<string> listOfUIItems = new BindingList<string>(); listOfUIItems.Add("Alice"); listOfUIItems.Add("Bob");

Overview In this example 2 clients send information to each other through a server. One client sends the server a number which is relayed to the second client. The second client halves the number and sends it back to the first client through the server. The first client does the same. The server st...

Interfaces can be extremely helpful in many cases. For example, say you had a list of animals and you wanted to loop through the list, each printing the sound they make. {cat, dog, bird} One way to do this would be to use interfaces. This would allow for the same method to be called on all of th...

The JavaScriptSerializer.Deserialize<T>(input) method attempts to deserialize a string of valid JSON into an object of the specified type <T>, using the default mappings natively supported by JavaScriptSerializer. using System.Collections; using System.Web.Script.Serialization; // ....

internal class Sequence{ public string Name; public List<int> Numbers; } // ... string rawJSON = "{\"Name\":\"Fibonacci Sequence\",\"Numbers\":[0, 1, 1, 2, 3, 5, 8, 13]}"; Sequence sequence = JsonConvert.DeserializeObject<Seque...

Optional<String> optionalWithValue = Optional.of("foo"); optionalWithValue.ifPresent(System.out::println);//Prints "foo". Optional<String> emptyOptional = Optional.empty(); emptyOptional.ifPresent(System.out::println);//Does nothing.

Introduction All modern web browsers, NodeJs as well as almost every other JavaScript environments support writing messages to a console using a suite of logging methods. The most common of these methods is console.log(). In a browser environment, the console.log() function is predominantly used f...

A normal function declaration looks like this: function foo(){ } A function defined like this is accessible from anywhere within its context by its name. But sometimes it can be useful to treat function references like object references. For example, you can assign an object to a variable based...

There are many ways to create arrays. The most common are to use array literals, or the Array constructor: var arr = [1, 2, 3, 4]; var arr2 = new Array(1, 2, 3, 4); If the Array constructor is used with no arguments, an empty array is created. var arr3 = new Array(); results in: [] Note...

PHP can be used to add content to HTML files. While HTML is processed directly by a web browser, PHP scripts are executed by a web server and the resulting HTML is sent to the browser. The following HTML markup contains a PHP statement that will add Hello World! to the output: <!DOCTYPE html&gt...