A Timing Utility : System « Utility Classes « SCJP

1. SCJP
2. Utility Classes
3. System

System.currentTimeMillis returns a long primitive that represents the number of milliseconds 
since 00:00:00 GMT January 1, 1970. 


public class MainClass{
    public static void main(String[] argv){
       System.out.println(System.currentTimeMillis());
    }
}