java死锁小例子

package cn.com.io.threadDemo.ThreadSyn;

/**
 * 通过两个属性值创建死锁
 * 本程序通过两个线程各自锁定一个属性值，这样两个线程都无法结束，造成死锁
 * @author Administrator
 *
 */
public class ThreadSyn2 implements Runnable{
 
 private static Object obj1=new Object();
 
 private static Object obj2=new Object();

 /**
  * @param args
  */
 public static void main(String[] args) {
  ThreadSyn2 ts1=new ThreadSyn2();
  ThreadSyn2 ts2=new ThreadSyn2();
  
  Thread t1=new Thread(ts1);//线程1
  Thread t2=new Thread(ts2);//线程2
  t1.setName("theOne");
  t2.setName("theTwo");
  
  t1.start();
  t2.start();

 }

 public void run() {
  String name=Thread.currentThread().getName();
  if(name.equals("theOne")){
   method1(name);
  }else{
   method2(name);
  }
  
 }

 //线程1的方法锁定obj1，线程2就无法完成
 private void method1(String name) {
  System.out.println(name);
  synchronized(obj1){
   try {
    Thread.sleep(1000);
   } catch (InterruptedException e) {
    e.printStackTrace();
   }
   synchronized(obj2){
    System.out.println(obj2);
   }   
  }  
 }

    //线程1的方法锁定obj2，线程1就无法完成
 private void method2(String name) {
  System.out.println(name);
  synchronized(obj2){
   try {
    Thread.sleep(1000);
   } catch (InterruptedException e) {
    e.printStackTrace();
   }
   synchronized(obj1){
    System.out.println(obj1);
   }
  }  
 }
}