package com.simon.study;

/**

 * 线程死锁 一个线程要同时拥有两个对象的资源才能进行下一步操作；

 * @author: Simon

 * @date: 2017年7月29日 下午9:48:43

 */

public class DeadLock implements Runnable{

  static Object o1=new Object(),o2=new Object();

  public int flag=;

     public void run() {

           // TODO Auto-generated method stub

           System.out.println("flag***********"+flag);

           if(flag==){

                synchronized (o1) {

                      try {

                           Thread.sleep();

                      } catch (Exception e) {

                           // TODO: handle exception

                      }

                      synchronized (o2) {

                           System.out.println("这里线程1获取所有的线程权限");

                      }

                }

                }

           if(flag==){

                synchronized (o2) {

                      try {

                           Thread.sleep();

                      } catch (Exception e) {

                           // TODO: handle exception

                      }

                      synchronized (o1) {

                           System.out.println("这里线程2获取所有的线程权限");

                      }

                }

           }

           }

     public static void main(String[] args){

           DeadLock deadLock1=new DeadLock();

           DeadLock deadLock2=new DeadLock();

           deadLock1.flag=;

           deadLock2.flag=;

           Thread r1=new Thread(deadLock1);

           Thread r2=new Thread(deadLock2);

           r1.start();

           r2.start();

     }

     }