Following books are on top from popularity and content wise and are a good resource to learn java programming from beginner to advance level.

Let us look at a simple code that will print the words Hello World.ExampleLive Demopublic class MyFirstJavaProgram {    /* This is my first java program. *    This will print 'Hello World' as the output */    public static void main(String []args) {       System.out.println("Hello World"); // ... Read More

Methods, variables, and constructors that are declared private can only be accessed within the declared class itself.Private access modifier is the most restrictive access level. Class and interfaces cannot be private.Variables that are declared private can be accessed outside the class, if public getter methods are present in the class.Using ... Read More

The following are some of the best browser-based debugging tools for JavaScript −FireBugFireBug is a Firefox addon, widely used to inspect the code. Edit, debug and monitor CSS, HTML, and JavaScript live in any web page.Credit− FirebugDragonFlyDragonFly is a fully-featured suite of developer tools. It supports cross-device and remote debugging, ... Read More

Suppose we have the following table named stock_item in which the column quantity is having duplicate values i.e. for item name ‘Notebooks’ and ‘Pencil’, the column ‘Quantity’ is having duplicate values ‘40’ and for items ‘Shirts’, ‘Shoes’ and ‘Trousers’ triplicate value 29 is hold by column ‘quantity’ as shown in ... Read More

So you've decided to learn how to program in C++ but don't know where to start. Here's a brief overview of how you can get started.Get a C++ CompilerThis is the first step you'd want to do before starting learning to program in C++. There are good free C++ compilers ... Read More

If we export the data from a table having NULL values then MySQL will store \N in CSV file for the record MySQL table having NULL values. It can be illustrated with the help of the following example −ExampleSuppose if we want to export the values of the table ‘student_info’ ... Read More

To update HTML5 canvas rectangle on hover, try to run the following code:var canvas = document.getElementById("myCanvas"); var context = canvas.getContext("2d"); context.rect(20,20,150,100); context.stroke(); $(canvas).hover(function(e){    context.fillStyle = blue;    context.fill(); });

Use the following to check the compatibility of the HTML5 tag :var $myEL = $(''); $myEL.appendTo('body'); var bgColor = $myEL.css('backgroundColor'); if (/rgb\(255\, 255\, 0\)/.test(bgColor))    return true; else    return false;

The MediaStream represents synchronized streams of media. If there is no audio tracks, it returns an empty array and it will check video stream, if webcam connected, stream.getVideoTracks() returns an array of one MediaStreamTrack representing the stream from the webcam.function gotStream(stream) {    window.AudioContext = window.AudioContext || window.webkitAudioContext;    var ... Read More