1 /**
2 * 线程互锁：线程td1得到obj1的锁，线程td2得到了obj2的锁，接着，线程td1在持有obj1的锁的同时
3 * 企图得到obj2的锁，而此时线程td2仍持有obj2的锁，所以线程td1等待，而线程td2的行为也与线程td1相同
4 * 因此就形成了死锁
5 */
6 public class Client {
7 public static void main(String[] args) {
8 final Object obj1 = "test1";
9 final Object obj2 = "test2";
10
11 Thread td1 = new Thread(){
12 public void run(){
13 synchronized(obj1){
14 System.out.println("td1得到了obj1的锁");
15 try {
16 Thread.sleep(1000);
17 } catch (InterruptedException e) {
18 e.printStackTrace();
19 }
20
21 synchronized(obj2){
22 System.out.println("td1企图得到obj2的锁");
23
24 try {
25 Thread.sleep(1000);
26 } catch (InterruptedException e) {
27 e.printStackTrace();
28 }
29 }
30 }
31 }
32 };
33
34
35 Thread td2 = new Thread(){
36 public void run(){
37 synchronized(obj2){
38 System.out.println("td2得到了obj2的锁");
39 try {
40 Thread.sleep(1000);
41 } catch (InterruptedException e) {
42 e.printStackTrace();
43 }
44
45 synchronized(obj1){
46 System.out.println("td2企图得到obj1的锁");
47
48 try {
49 Thread.sleep(1000);
50 } catch (InterruptedException e) {
51 e.printStackTrace();
52 }
53 }
54 }
55 }
56 };
57
58 td1.start();
59 td2.start();
60 }
61
62 }