Terminating a Java Program

Question

I found out ways to terminate (shut-down or stop) my Java programs. I found two solutions for it.

1. using return;
   When I want to quit or

Answer 1

1. System.exit() is a method that causes JVM to exit.
2. return just returns the control to calling function.
3. return 8 will return control and value 8 to calling method.