Java Return statement-return__java programming experience

The return statement is to jump to another program during the execution of the program. A general return statement is used in a subroutine or in a function method in a program. The return statement is indicated by using the keyword "return". The following is a simple example of how to use the return statement.
public void set (int a,int b) {
I=a*b
Return
}

The above is a small program section, the return keyword appears in the program, indicating that this small program is over, returned to the main running program. There is also a situation, first look at the following example.
public int set () {
Return i=a*b
}
This situation not only returns to the main running program, but also brings the value of "i=a*b" back to the main run program, assigning its value to "I" in the main running program.