Nirutechnolabs

Java is widely used robust technology. let's start learning java from basic like what is java, core java where it is used, what type of applications are created in java and why we use java.

first of let's see what is java..?

Java is programming language and a platform. java is high level, robust secured and object oriented programming language.

Platform any hardware or software environment in which a program runs is known as platform. since has its own environment(JRE) and API. It is called platform.

Now onward let's see one example to know better idea will came.

Class Simple{
   Public static void main(String args[]) {
      System.out.println("Hello Ravi");
   }
 }

Out put is here:

Compile by : javac Simple.java
Run by : java Simple

Hello Ravi

Where is is used ?

Accordingly to sun, 3 billion devices run java. there are many devices where java is currently used. some of them are as follows:

1. Desktop Applications such as acrobat reader, media player, antivirus and many popular software.
2. Web applications such as irctc.co.in etc
3. Enterprise Applications such as banking applications 
4. Mobile
5. Embedded System 
6. Smart Card
7. Robotics
8. Game etc 

Types of Java Applications

There are mainly four type applications that can be crated using java programming :

1: Standalone Applications 
It's also known as desktop application or window-based applications. an application that we need to install every machine such as media player antivirus etc. AWT and Swing are used in java creating standalone applications

 2:Web Applications
An application that runs on the server side and creates dynamic page is called web applicaion. currently servlet , jsp struts, jsf etc. technologies are used creating web application in java

3:Enterprise Application 
An application that is distributed in nature, such as banking applications etc. IT has the advantage of high level security load balancing and clustering. in java EJB is used for creating enterprise applications.

4:Mobile Application
An application that is created for mobile devices. currently android and java ME are used for creating mobile applications.

History of Java

Java is interesting to know the history if java starts from green team. java team