how to change ur windows desktop by upside down.

In windows XP, Right click the desktop,

A Pop up menu will be opened.
Select the graphics options.
- >Graphics properties- >tab- >Enable the rotation.
--> Rotation Views select the rotation degree as 180 Degree and click Apply.

Ur Window Desktop will be like this

To change this view to normal

Right click the desktop,

A Pop up menu will be opened.
Select the graphics options.
- >Graphics properties- >tab- >Enable the rotation.
--> Rotation Views select the rotation degree as Normal and click Apply.

It will become normal

how to find java versions in your computer

In the command prompt type the following
>java -version
you will get the version.