定时器
package cn.itcast.heima2; import java.util.Date; import java.util.Timer; import java.util.TimerTask; public class TraditionalTimerTest { private static int count = 0; public static void main(String[] args) { /* new Timer().schedule(new TimerTask() { @Override public void run() { System.out.println("bombing!"); } }, 10000,3000);*/ class MyTimerTask extends TimerTask{ @Override public void run() { count = (count+1)%2; System.out.println("bombing!"); new Timer().schedule(/*new TimerTask() { @Override public void run() { System.out.println("bombing!"); } }*/new MyTimerTask(),2000+2000*count); } } new Timer().schedule(new MyTimerTask(), 2000); while(true){ System.out.println(new Date().getSeconds()); try { Thread.sleep(1000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } }