【Java】线程锁机制的实例化操作

柔情只为你懂 2022-01-06 09:27 193阅读 0赞

package comunication;
    
    public class 包子笼 {
        
        public int pack=100;
    
        /**
         * 同步方法监视的对象是this
         * @param name
         */
    //    public synchronized void eat(String name){
        
    //            System.out.println(name + "吃第" + this.pack + "个包子");
    //            this.pack--;
    //
    //    }
    }

package comunication;
    
    //import com.sun.xml.internal.bind.v2.runtime.reflect.Lister;
    public class 吃包子的 extends Thread{
        
        private 包子笼 p=null;
        private  String name=null;
        public 吃包子的(包子笼 p, String name){
        
            this.p=p;
            this.name=name;
        }
    //    public void eat(){
        
    //        synchronized (p){
        
    //                System.out.println(this.name + "吃第" + this.p.pack + "个包子");
    //                this.p.pack--;
    //            }
    //    }
    public void run(){
        
        try {
        
            while (true) {
        
                synchronized (p){
        
                if (this.p.pack <= 0){
        
                    p.notify();
                p.wait();
                }else{
        
                    System.out.println(this.name+"吃第" + this.p.pack + "个包子");
                    this.p.pack--;
                }
            }
            Thread.sleep(1);
            }
        } catch (InterruptedException e) {
        
            e.printStackTrace();
        }
    }
    }

package comunication;
    
    public class 做包子的 extends Thread {
        
        private 包子笼 p=null;
        private String name=null;
        public 做包子的(包子笼 p,String name){
        
            this.p=p;
            this.name=name;
        }
        public void run(){
        
            try {
        
                while(true) {
        
                    synchronized (p) {
        
                        if (p.pack <= 0) {
        
                            p.pack = 100;
                            System.out.println(this.name + "做好了" + p.pack + "个包子");
                        } else {
        
                               p.notifyAll();
                               p.wait();
                        }
                    }
                }
            } catch (InterruptedException e) {
        
                e.printStackTrace();
            }
        }
    }

package comunication;
    
    public class 测试吃包子 {
        
        public static void main(String[] args) {
        
            包子笼 p=new 包子笼();
            做包子的 m=new 做包子的(p,"王大楚");
            吃包子的 p1=new 吃包子的(p,"张三");
            吃包子的 p2=new 吃包子的(p,"李四");
           p1.start();
           p2.start();
           m.start();
        }
    }

![在这里插入图片描述][20190624190204222.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNDE2MjI2_size_16_color_FFFFFF_t_70]

[20190624190204222.png]: /images/20211227/ef6af9779f68490b8b7dce8c9f8ad31b.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNDE2MjI2_size_16_color_FFFFFF_t_70]: /images/20211227/0a8567182693460bbdd438d61ba6b30e.png