package com.demo;
/*
* 死锁演示
*/
public class DeadLockDemo {
public static void main(String[] args) {
Test a = new Test(true);
Test b = new Test(false);
Thread t1 = new Thread(a);
Thread t2 = new Thread(b);
t1.start();
t2.start();
}
}
class Test implements Runnable {
private boolean flag;
public Test(boolean flag) {
this.flag = flag;
}
public void run() {
if (flag) {
synchronized (MyLock.locka) {
System.out.println(Thread.currentThread().getName()
+ ":if -----locka----");
synchronized (MyLock.lockb) {
System.out.println(Thread.currentThread().getName()
+ ":if -----lockb----");
}
}
} else {
synchronized (MyLock.lockb) {
System.out.println(Thread.currentThread().getName()
+ ":else -----lockb----");
synchronized (MyLock.locka) {
System.out.println(Thread.currentThread().getName()
+ ":else -----locka----");
}
}
}
}
}
class MyLock {
public static final Object locka = new Object();
public static final Object lockb = new Object();
}
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