Introduction of Java

 What is Java?

Java is an object-oriented programming language developed by Sun Microsystem in 1995. It is a combination of C and C++ features with some essential and additional concepts. Java is suited for both standalone and web application development.

Java can run on any hardware OR software environment which make it platform independent.

Java Example:                                                                        

class Simple{

    public static void main(String args[]){

        System.out.println("Welcome In Java World");

    }

}

In above example the 'Simple' is a Class name, public is access specifier, Main is a method with argument, String is a class, System.out.println() is use to print argument with value pass with it.

All these concept we will discuss in different topic and its sessions. 

Where is java being use?

Earlier java was only use to design and program small computing devices, but after adopting platform independent features it run more than 3 billion devices.

Java is one of the most important programing language in IT industries. In today's life it is use in JSP, Applets, J2EE, JavaBeans and Mobile etc.

JSP: In java, JSP (Java Server Pages) is use to create dynamic web pages.

Applets: Applets are another type of programs are implemented on internet and they run as part of web document.

J2EE: Java 2 Enterprise Edition is a platform-independent environment. It is set of different protocol and API which are used by various organizations to transfer data to each other's.

JavaBeans: It is set of reusable software component. It use in new, large and advance applications.

Mobile: In addition java is widely use in mobile devices to create different type of mobile applications and games.

Types of Java Application

There are mainly 4 types of application we can create using java:

1. Standalone Application:

    Standalone application also called as desktop application. These are the traditional software that we install on every machine. Examples of standalone applications are Media Player, Antivirus, Library management system, Scanners Systems etc.

2. Web Application:

    An application which are run on server side and create dynamic pages call Web Application. Examples of web applications are JSP, Servlet, Hibernate, Spring etc.

3. Enterprise Applications:

    An application which is distributed in nature and high level security called Enterprise applications like Banking application, Online shopping and payment applications etc.

4. Mobile Application:

    An application which is create for mobile is called Mobile Applications. Currently we use Android and Java ME to create mobile applications.