Starting java

HISTORY OF JAVA

First version released in 1995.

-1.02(1996) JDBC, Distributed objects.

-1.1(1997) New Event model,Generics.

-1.2(1998) Swings, for/in loop.

-1.3(2000) Autoboxing /Unboxing.

-1.4(2002) cleanup,Type safe Enums.

-1.5(2004) Varags.

-1.6(2006) Static import.

-1.7(2011) Annotations.

HISTORY OF YOUNG JAVA

1992- Oak for a PDA on Sparc(*7).

1995-official release of java.

1997-picojava

1999-J2SE,J2EE

1999-JSE has base part and JSEis also called core java.

2000-J2ME.

Java Standard Edition(JSE)

1.J2EE

2.Java with embedded.

3.Java Fx

4.Bio java.


                                                                   
Q-Where java is used and using?

Ans-According to sun 3 billion devices run java.
       
 java is currently used in many ways.

1.Desktop Application such as antivirus,caculators,media player etc.

2.Web applications.

3.Enterprise Application.

4.Mobile applications.

5.Embedded system.

6.Robotics.

7.Games.

Q-Why java is so used ?

Ans-There are many reasons for java is used or we can say many features for using of java but main reason is object  oriented programming and security.

Object oriented programming:-OOPs is an approach in  which different  programs and methods are writtten.

There are three catogories of oops.

1.object based:-A language which does not support two feature of oops like inheritance and run time poly morph ism or dynamic binding.
Ex:-java script,visual basic etc.

2.purely object oriented:-A language in which everything is represented in the form of object.
Example:-small talk.

3.simple object oriented:-A language in which everything is represented in the form of object except primitive datatypes.
Just because of primitive datatpes java is not a pure object oriened lamguage.