手写一个死锁Demo

相互持有对方锁，导致死锁

 package jesse.test04;

 public class DeadLockSample extends Thread{

     private String first;
     private String second;
     public DeadLockSample(String name,String first, String second) {
         super(name);
         this.first = first;
         this.second = second;
     }

     @Override
     public void run(){
         synchronized(first){
             System.out.println(this.getName()+" obtained: "+ first);
             try {
                 Thread.sleep(1000L);
                 synchronized(second){
                     System.out.println(this.getName()+" obtained: "+ second);
                 }
             } catch (InterruptedException e) {
                 e.printStackTrace();
             }
         }

     }
     public static void main(String[] args) throws InterruptedException {
         String lockA = "lockA";
         String lockB = "locakB";
         DeadLockSample t1 = new DeadLockSample("thread1", lockA, lockB);
         DeadLockSample t2 = new DeadLockSample("thread2", lockB, lockA);
         t1.start();
         t2.start();
         t1.join();
         t2.join();
     }

 }