Its not working on my laptop

Question

How to doo it

Answer 1

If you have tried seamiki's suggestions to no avail, uninstall Windows and burn the hardware at 2100°C

Answer 2

read carefully the documentation, follow the steps without rushing and you can be sure that you'll be able to compile Java code as other million users.
1install jdk
2Set java path
3write code
4compile it
5run it
search every point, do it properly ald you'll good to go.