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70 lines (62 loc) · 1.7 KB
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package com.msj.sync;
/**
* synchronized可以使用任意的Object进行加锁
* @author Vincent.M csdn@vip.163.com on 2017/3/13.
*/
public class ObjectLock {
public void method1(){
synchronized (this) { //对象锁
try{
System.out.println("do mehtod1");
Thread.sleep(2000);
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
public void method2(){
synchronized (ObjectLock.class) { //类锁
try{
System.out.println("do mehtod2");
Thread.sleep(2000);
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
Object lock = new Object();
public void method3(){
synchronized (lock) { //任何对象锁
try{
System.out.println("do mehtod3");
Thread.sleep(2000);
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
public static void main(String[] args){
final ObjectLock objectLock = new ObjectLock();
Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
objectLock.method1();
}
});
Thread t2 = new Thread(new Runnable() {
@Override
public void run() {
objectLock.method2();
}
});
Thread t3 = new Thread(new Runnable() {
@Override
public void run() {
objectLock.method3();
}
});
t1.start();
t2.start();
t3.start();
}
}