java死锁样例

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java死锁样例

package bin.io.thread;/**测试死锁 * @author 牵手无奈 * date:2015-9-1 * */public class DeadLock implements Runnable{private  int flag = 0;private static Object o1 = new Object();private static Object o2 = new Object();public int getFlag() {return flag;}public void setFlag(int flag) {this.flag = flag;}/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubDeadLock d1 = new DeadLock();DeadLock d2 = new DeadLock();d1.setFlag(0);d2.setFlag(1);new Thread(d1).start();new Thread(d2).start();}@Overridepublic void run() {if(flag==0){synchronized (o1) {System.out.println("我锁定O1，然后睡上1秒！");try {Thread.sleep(1000);System.out.println("我o1睡醒了，要准备拿o2");synchronized (o2) {System.out.println("我拿到o2，,表示没有发生死锁");}} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}else if(flag==1){synchronized (o2) {System.out.println("我锁定O2，然后睡上1秒！");try {Thread.sleep(1000);System.out.println("我o2睡醒了，要准备拿o1");synchronized (o1) {System.out.println("我拿到o1,表示没有发生死锁");}} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}}

运行结果

我锁定O2，然后睡上1秒！
我锁定O1，然后睡上1秒！
我睡醒了，要准备拿o1
我睡醒了，要准备拿o2

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