线程之取款

package com.test;

public class TestAccount implements Runnable{

Account acc = new Account();

@Override
public void run() {
    //可以取款5次
    for (int i = 0; i < 5; i++) {
        //取款
        getM(1000);
        if(acc.getMoney()==0){
            System.out.println("帐户透支了");
            break;
        }
    }


}

public  void getM(int amt){
    synchronized (acc) {
        if(acc.getMoney()>=amt){
            System.out.println(Thread.currentThread().getName()+"准备取款");
            try {
                Thread.sleep(1000); //0.5秒之后取款
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            acc.takeMoney(amt);
            System.out.println(Thread.currentThread().getName()+"完成取款,余额为:"+acc.getMoney());
        }else{
            System.out.println("余额不足以支付"+Thread.currentThread().getName()
                    +"的取款，余额为:"+acc.getMoney());
        }
    }

}

}
package com.test;

public class Account {

private int money=5000;

//获取余额的方法
public int getMoney(){
    return money;
}

//取款的方法
public void takeMoney(int ban){
    money = money-ban;
}

}
package com.test;

public class Test {

public static void main(String[] args) {
    TestAccount ta = new TestAccount();
    new Thread(ta,"张三").start();
    new Thread(ta,"张三老婆").start();
}

}