Java Programming – An Introduction – Write anywhere and run anywhere

Java Programming is an object-oriented, class-based, concurrent, secure and general-purpose computer-programming language. This is a widely used robust technique.

Any hardware or software environment in which a program runs is known as a platform. Since java has a runtime environment (JRE) and API, it is called a platform.

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Take a look at Java Programming Example.

class Simple{
    public static void main(String args[]){
     System.out.println(“Hello Java”);

Applications of Java

According to Oracle, 3 billion devices run on Java. There are many tools where Java is currently used. Some of them are as follows:

  • Desktop applications such as acrobat reader, media player, antivirus, etc.
  • Web Application like etc.
  • Enterprise applications such as banking applications.
  • Mobile
  • Embedded system.
  • smart card Robotics
  • Games, etc.

Types of Java Applications

There are mainly 4 types of applications that can be created using Java programming:

1) Standalone Application

Standalone applications are also known as desktop applications or window-based applications. These are traditional software which we have to install on every machine. Examples of standalone applications are media players, antivirus, etc. AWT and Swing are used in Java to create standalone applications.

2) Web application

An application that runs on the server side and generates a dynamic page is called a web application. Currently, technologies like Servlet, JSP, Structs, Spring, Hibernate, JSF, etc. are used to build web applications in Java.

Enterprise Application

An enterprise application is a large software system designed to operate in a corporate environment such as a business or government. Banking applications etc., are called enterprise applications. It has the advantages of high-level security, load balancing and clustering. In Java, EJBs are used to create enterprise applications.

4) Mobile Application

An application that is created for mobile devices is called a mobile application. Currently, Android and Java ME are used to create mobile applications.


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