timedcountdown.java

演示win32的socket 通讯 八皇后的改进算法 并发Concurrency的JAVA实现 applet演示鼠标的点击时间和显示图象 手机J2ME的多线程演示

package concurrency.time;

class TimedCountDown implements Timed {
  TimeManager clock;
  int i;

  TimedCountDown(int N, TimeManager clock) {
    i = N; this.clock = clock;
    clock.addTimed(this);
  }

  public void pretick() throws TimeStop {
    if(i==0) {
        //do beep action
        clock.removeTimed(this);
    }
  }

  public void tick(){
    --i;
  }
}