关于实现线程死锁的一个例子

线程对象class DeadLock

{    //模拟两个对象    private final Object obj1 = new Object();    private final Object obj2 = new Object();    public static void main(String[] args){        DeadLock dl = new DeadLock();        dl.testDeadLock();        //System.out.println("Hello World!");        }    public void testDeadLock(){         new Thread(new Runnable(){              public void run(){                     testSync(obj1,obj2);                System.out.println("obj1...");              }               }).start();                  new Thread(new Runnable(){              public void run(){                testSync(obj2,obj1);                System.out.println("obj2...");                  }                }).start();    }        public static void testSync(Object obj,Object obje){           synchronized(obj){            try{ Thread.sleep(2*1000);            }catch(Exception e){                e.printStackTrace();            }        }        synchronized(obje){            try{                 Thread.sleep(2*1000);            }catch(Exception e){                e.printStackTrace();            }        }    }}