Hello, UnKnown Conceptz, and welcome to the forums!
Firstly, make sure that you don't post your questions in this subforum; it is meant solely for introducing yourself to other members of the community. The appropriate subforum for you question would be AWT / Java Swing
Now, pertaining to your question: the syntax for calling methods in another class is as follows...
If the method is static, use className.methodName().
If the method is non-static, use instanceOfClass.methodName().
main() is a static method, so to call it you must use the name of the class, then a period (.), and then "main()".
If you have further questions be sure to post in the appropriate forum.