Java 死锁 0627

 synchronized 尽量不要嵌套使用

package leetcode0606.DeadLock;

public class deadLock {
    public static void main(String[] args) {
        Object o1 = new Object();
        Object o2 = new Object();
        MyThread1 t1 = new MyThread1(o1,o2);
        MyThread2 t2 = new MyThread2(o1,o2);

        t1.start();
        t2.start();
    }
}

class MyThread1 extends Thread{
    Object o1;
    Object o2;

    public MyThread1(Object o1,Object o2) {
        this.o1 = o1;
        this.o2 = o2;
    }

    @Override
    public void run() {
        synchronized (o1){
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            synchronized (o2){

            }
        }
    }
}

class MyThread2 extends Thread{
    Object o1;
    Object o2;

    public MyThread2(Object o1,Object o2) {
        this.o1 = o1;
        this.o2 = o2;
    }
    @Override
    public void run() {
        synchronized (o2){
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            synchronized (o1){

            }
        }
    }
}