how to change windows xp background image through java

[erosenthil]

Is it possible to change the background image of the os(windows xp) through java program. if so which object do i use. any example program.

[dlorde]

Not directly, no. Java doesn't have OS-specific features built-in. You could interface with a native routine to do it via JNI (Java Native Interface), or execute an external process via Runtime.exec, but frankly you'd be better off using a native language that gives you direct access to the OS API.

There is some discussion about this here.