手写死锁demo

代码实现：

class HoldLockThread implements Runnable{
    private String lockA;
    private String lockB;

    public HoldLockThread(String lockA, String lockB) {
        this.lockA = lockA;
        this.lockB = lockB;
    }

    @Override
    public void run() {
        synchronized (lockA) {
            System.out.println(lockB);  //持有lockA、尝试获取lockB
            synchronized (lockB) {
                System.out.println(lockA);  //持有lockB、尝试获取lockA
            }
        }
    }
}
public class DeadLockDemo {
    public static void main(String[] args) {
        String lockA = "lockA";
        String lockB = "lockB";
        new Thread(new HoldLockThread(lockA, lockB)).start();
        new Thread(new HoldLockThread(lockB, lockA)).start();
    }
}