002JAVA多个多线程同时竞争一个类实例方法

Posted 2021-11-11

package com.skcc.mthread;

public class MyThread001 extends Thread {

private int count=4;

public MyThread001() {
    // TODO Auto-generated constructor stub
}

@Override
public synchronized void run() {
   count--;
   System.out.println(Thread.currentThread().getName() + " = " + count);
}

/***
 * 多个线程同时竞争MyThread001类实例对象及成员方法
 * 多个线程按照CPU分配时间顺序来执行，（t1到t4的执行顺序需参考CPU分配的顺序来定）
 * 
 * ****/
public static void main(String[] args) {
    // TODO Auto-generated method stub
    MyThread001 myThread = new MyThread001();

    Thread t1 = new Thread(myThread,"t1");
    Thread t2 = new Thread(myThread,"t2");
    Thread t3 = new Thread(myThread,"t3");
    Thread t4 = new Thread(myThread,"t4");

    t1.start();
    t2.start();
    t3.start();
    t4.start();
}

}