- class Test1 implements Runnable{
- private boolean flag;
- Test1(boolean flag){
- this.flag = flag;
- }
- public void run(){
- if(flag){
- synchronized(MyLock.locka){
- System.out.println("if locka");
- synchronized(MyLock.lockb){
- System.out.println("if lockb");
- }
- }
- }else{
- synchronized(MyLock.lockb){
- System.out.println("else lockb");
- synchronized(MyLock.locka){
- System.out.println("else locka");
- }
- }
- }
- }
- class MyLock{
- static Object locka = new Object();
- static Object lockb = new Object();
- }
- public class DeadLockTest{
- public static void main(String[] args){
- Thread t1 = new Thread(new Test1(true));
- Thread t2 = new Thread(new Test1(false));
- t1.start();
- t2.start();
- }
- }
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这是完整代码 |