聪聪工作室---多线程--- LearnThreadDeadLo

一个程序就是一个进程

多线程指在同一个程序中的多个应用和功能

LearnThreadDeadLock.java 代码

package SiLock;

import java.util.concurrent.SynchronousQueue;

public class LearnThreadDeadLock {
    public static void main(String[] args) {
        Object lock1 = new Object();
        Object lock2 = new Object();

        Thread ta = new ThreadA(lock1, lock2);
        Thread tb = new ThreadB(lock1, lock2);
        ta.start();
        tb.start();
    }

}

class ThreadA extends Thread {
    Object lock1;
    Object lock2;

    public ThreadA(Object lock1, Object lock2) {
        this.lock1 = lock1;
        this.lock2 = lock2;
    }

    @Override
    public void run() {
        synchronized (lock1) {
            System.out.println("线程A拿到了Lock1");
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            synchronized (lock2) {

                System.out.println("线程A拿到了Lock1和Lock2");
            }
        }
    }
}

class ThreadB extends Thread {

    Object lock1;
    Object lock2;

    public ThreadB(Object lock1, Object lock2) {
        this.lock1 = lock1;
        this.lock2 = lock2;
    }

    @Override
    public void run() {
        synchronized (lock1) {

            System.out.println("线程B拿到了Lock2");
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            synchronized (lock2) {
                System.out.println("线程B拿到了lock1和lock2");
            }
        }
    }
}

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