Installation on Linux Platform
Change to the directory in which you want to install.
For example, to install the software in the /usr/java/ directory, Type:
Move the .tar.gz archive binary to the current directory. Unpack the tarball and install Java
tar zxvf jdk-****.tar.gz
The Java files are installed in a directory called jdk1.x.x_x in the current directory.
In this example, it is installed in the /usr/java/jdk1.x.x_x directory.
When the installation has completed,you will see the word Done.
Delete the .tar.gz file if you want to save disk space.
Open terminal & edit ~/.bash_profile with your favourite editor
Insert export command for JAVA_HOME as below.
Installation on Windows Platform
Double Click on the setup file. (jdk-7u2-window-x64 is jdk file in my case)
Following Setup window will gets opened.
Now Click on â€œNextâ€ button.
It will prompt you optional features to be installed. Let it be default. Now click on â€œnextâ€.
Now Keep Path as default.
After following series of above screenshots finish window will gets opened. Now next step is to setting up class path so that you can run java programs.
class path setup
Right click on my computer. select properties.
click on advanced system settings
click on Environment variable.
click on new button.
insert JAVA_HOME in variable name and put your jdk path (e.g c:\program files\java\jdk6.0.1_13) variable value.