Use the tag to define a dialog box in HTML. The following are the attributes −AttributeValueDescriptionopenopenopens a dialog box and user can interact with itExampleYou can try to run the following code to learn how to work with tag −           HTML dialog ... Read More

Use the usemap attribute to specify an image as a client-side image-map in HTML. You can try to run the following code to implement usemap attribute −Example           HTML map Tag                                              

HTML5 localStorage saves string data in the browser and lasts beyond the current session. localStorage stores the data, with no expiration, whereas sessionStorage is limited to the session only. When the browser is closed, the session is lost.The Local Storage is designed for storage that spans multiple windows and lasts ... Read More

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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

The bitwise exclusive OR operator (^) compares every bit of} its 1st operand to the corresponding bit of its second operand. If one bit is 0 and the other bit is 1, the corresponding result bit is set to 1. Otherwise, the corresponding result bit is set to 0. Both ... Read More

A type cast provides a method for explicit conversion of the type of an object in a specific situation. It can be used as a unary expression −( type-name ) cast-expressionThe compiler treats cast-expression as type type-name after a typecast has been made. Casts are used to convert objects of ... Read More