JAVA线程sleep和wait方法区别

package com.day19;
/**
 * 生产者与消费者线程
 * @author tenlee
 *
 */
public class ThreadDemo {

	public static void main(String[] args) {
		Food food = new Food();
		Producter p = new Producter(food);
		Customer c = new Customer(food);
		Thread tp = new Thread(p);
		Thread tc = new Thread(c);
		tp.start();
		tc.start();
	}
}
//生产者
class Producter implements Runnable {
	private Food food;
	public Producter(Food food) {
		this.food = food;
	}
	@Override
	public void run() {
		for(int i = 0; i < 50; i++) {
			if(i % 2 == 0) {//偶数，生产xx菜
//				System.out.println("红烧肉----生产");
//				food.setName("红烧肉");
//				try {
//					Thread.sleep(500);//做菜
//				} catch (InterruptedException e) {
//					e.printStackTrace();
//				}
//				food.setEfficasy("好吃");
				food.set("红烧肉", "好吃");
				
			} else {//奇数，生产xx菜
//				System.out.println("脆皮鸡 生产");
//				food.setName("脆皮鸡");
//				try {
//					Thread.sleep(500);//做菜
//				} catch (InterruptedException e) {
//					e.printStackTrace();
//				}
//				food.setEfficasy("香脆");
				food.set("脆皮鸡", "香脆");
			}
		}
	}
}
class Customer implements Runnable {
	private Food food;
	public Customer(Food food) {
		this.food = food;
	}
	@Override
	public void run() {
		for(int i = 0; i < 50; i++){
//			try {
//				Thread.sleep(500);
//			} catch (InterruptedException e) {
//				// TODO Auto-generated catch block
//				e.printStackTrace();
//			}
//			System.out.println(food.getName() + "--->"
//					+ food.getEfficasy());
			food.get();
		}
	}
}

package com.day19;

class Food {
	private String name;//菜名
	private String efficasy;//功效
	private boolean flag = true;
	
	public synchronized void set(String name, String efficasy) {
		if(!flag) {//1， 消费，不能生产
			try {
				this.wait();//当前线程进入等待状态，并让出CPU，释放监视器的锁
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		System.out.println("shengchan " + name + " " + efficasy);
		this.setName(name);
		this.setEfficasy(efficasy);
		try {
			Thread.sleep(500);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		flag = false; //开始消费
		this.notify();
	}
	public synchronized void get() {
		if(flag) {//true是生产
			try {
				this.wait();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		System.out.println(this.getName() + "xiaofei-->" + this.getEfficasy());
		try {
			Thread.sleep(500);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		flag = true; //开始生产
		this.notify();
	}
	public Food() {
		
	}

	public Food(String name, String efficasy) {
		super();
		this.name = name;
		this.efficasy = efficasy;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getEfficasy() {
		return efficasy;
	}

	public void setEfficasy(String efficasy) {
		this.efficasy = efficasy;
	}
}