Installation of Java

Installation of Java

Java Software Developement Kit(JDK) is a software created by SUN Microsystems to create or modify the java programs/applications.

We need to install JDk in our machines first. for software click here

After installing JDK we need to set the path. We can set the path in 2 ways.
1) Temparory path setting
We can set path temporarily from command prompt
C:\ set path= C:\Program Files\Java\jdk1.6_23\bin
2) Perminent Path Setting
MyComputer properties -> advanced system setting -> environmental variables -> user variables -> new -> 
variable name : path 
variable value : C:\Program Files\Java\jdk1.6_23\bin -> ok -> ok -> ok

Basic java Programm

Let us consider a java program with file name MyFirst.java

Creating Hello world program

public class MyFirst{

public static void main(String args[]){

System.out.println("Hello World..!");

}

}

to compile:

javac MyFirst.java

to execute:

java MyFirst

Output:

Hello World..!