初期JAVA学习非常有用的资料。帮助深入了解API。特别是Applet。

				//1.3
				
				import java.util.*;
				
				public class Problem {
				    public static void main(String[] args) {
				        Timer timer = new Timer();
				        timer.schedule(new TimerTask() {
				                public void run() {
				                    System.out.println("Exiting.");
				                    timer.cancel();
				                }
				            },
				            5000);
				
				        System.out.println("In 5 seconds this application will exit. ");
				    }
				}