package com.konghao.test;

public class Alarm implements Runnable {
	private boolean isWork; //鬧鐘是否開啟
	

	public Alarm() {
		super();
		this.isWork = false; //沒在響；
	}

	public boolean isWork() {
		return isWork;
	}


	public void setWork(boolean isWork) {
		this.isWork = isWork;
	}


	//鬧方法
	public void work(){
		synchronized (this) {
			//鬧鐘執行時，列印字元
			if(isWork){
				System.out.println("it's time for up!");
				this.notify();
				try {
					this.wait();
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}else{
				try {
					this.wait();
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}
	}

	@Override
	public void run() {
		for (int i = 0; i < 10; i++) {
			this.setWork(true);
			work();
		}
	}
	
}

package com.konghao.test;

public class User implements Runnable{
	private String name;
	private Alarm myAlarm;
	
	public User(String name, Alarm myAlarm) {
		super();
		this.name = name;
		this.myAlarm = myAlarm;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Alarm getMyAlarm() {
		return myAlarm;
	}
	public void setMyAlarm(Alarm myAlarm) {
		this.myAlarm = myAlarm;
	}
	public void stopAlarm(){
		synchronized (myAlarm) {
			if(myAlarm.isWork()){
				myAlarm.setWork(false);
				System.out.println(this.name+"按了鬧鐘！");
				try {
					Thread.sleep(5000);
				} catch (InterruptedException e) {
					e.printStackTrace();
				} finally{
					myAlarm.notify();
					try {
						myAlarm.wait();
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}else{
				try {
					myAlarm.wait();
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}
	}
	@Override
	public void run() {
		while(true){
			stopAlarm();
		}
		
	}
	
}
package com.konghao.test;

public class Test {
	public static void main(String[] args) {
		Alarm al = new Alarm();
		User u = new User("小胖",al);
		Thread ut = new Thread(u);
		Thread at = new Thread(al);
		
		ut.setDaemon(true);
		ut.start();
		at.start();
	}
	
	
}