4月19日，TestCommunicate，每日20行。

来源：互联网发布：知巳手机编辑：程序博客网时间：2024/05/30 02:24

class Account{    volatile private int value;    volatile private boolean isMoney = false;    synchronized void put(int i){        while(isMoney){            try{wait();}            catch(Exception e){}        }        value = value + i;        System.out.println("存入" + i + " 账上金额为：" + value);        isMoney = true;        notifyAll();    }    synchronized int get(int i){        while(!isMoney){            try{wait();}            catch(Exception e){}        }        if(value > i)            value = value - i;        else{            i = value;            value = 0;        }        System.out.println("取走" + i + " 账上金额为：" + value);        isMoney = false;        notify();        return i;    }}class Save implements Runnable{    private Account a1;    public Save(Account a1){        this.a1 = a1;    }    public void run(){        while(true){            a1.put(100);        }    }}class Fetch implements Runnable{    private Account a1;    public Fetch(Account a1){        this.a1 = a1;    }    public void run(){        while(true){            a1.get(100);        }    }}public class TestCommunicate {    public static void main(String[] args) {        Account a1 = new Account();         new Thread(new Save(a1)).start();     //两个线程存        new Thread(new Save(a1)).start();            new Thread(new Fetch(a1)).start();    //一个线程取    }}

这里写图片描述

0 0