进程的互相控制

[blueyestar]

class project{
public static void main(String args){
mythread [] thread = new mythread [10];

for(int i=0;i<10;i++){
mythread[i] = new mythread();
mythread[i].start();
}
sleep(100*1000);

thread[0].announce =false;

}

}

class mythread extends Thread{
public boolean announce;
mythread(){
announce =true;
}
public void run(){

while (announce){
....

}

}

程序大概是这个样子，　我想在main 中通知mythread[0] 结束（announce =false）, 然后由mythread[0] 通知mythread[1]结束（announce = faluse）, mythread[1]中通知　mythread[2]结束，以此类推．

直到mythread[9]结束后　main 才结束　，　这个要怎么写呀？！！

[hey2009]

public class project {
	public static void main(String[] args) throws Exception {
		mythread[] thread = new mythread[10];
		for (int i = thread.length-1; i >= 0; i--) {
			if (i == thread.length-1) {
				thread[i] = new mythread(null);
			}else{
			 thread[i] = new mythread(thread[i + 1]);
			}
			thread[i].start();
		}
		Thread.sleep(1000);
		thread[0].setAnnounce(false);

	}

}

class mythread extends Thread {
	public boolean announce;
	mythread child = null;
	mythread(mythread child) {
		this.child = child;//保存下一个线程的引用
		announce = true;
	}
	public void run() {
		while (announce) {
			System.out.println("===="+this.getName());
		}
	}
	public void setAnnounce(boolean announce){
		System.out.println("-------------------------------");
		this.announce = announce;
		if(child!=null)
		child.setAnnounce(announce);
	}
}