多线程练习

package com.qf.work;
/**
 *  张三和妻子各拥有一张银行卡和存折，可以对同一个银行账户进行存取款的操作，请使用多线程及同步方法模拟张三和妻子同时取款的过程。
    要求使用同步方法和同步代码块两种方式实现
    分析
    定义Account类表示银行帐户
    定义两个线程分别实现张三和妻子取款的操作
 */

public class Work4 {
    public static void main(String[] args) {
        Account account = new Account();
        
        SaveMoney saveMoney = new SaveMoney(account);
        TakeMoney takeMoney = new TakeMoney(account);
        
        Thread t0 = new Thread(saveMoney);
        Thread t1 = new Thread(takeMoney);
        
        t0.start();
        t1.start();
        
    }

}

class Account{
    int sum = 100;
    
    public synchronized void saveMoney() {
        sum += 10;
        System.out.println(Thread.currentThread().getName() +" 存款后："+ sum);
        
    }
    public synchronized void takeMoney() {
        if(sum > 0) {
            sum -= 1;
            System.out.println(Thread.currentThread().getName() +"取款后"+ sum);
        }
    }
}

class SaveMoney implements Runnable{
    Account account;
    int i = 1;
    
    public SaveMoney(Account account) {
        this.account = account;
    }
    @Override
    public void run() {
        synchronized (this) {
            while(i <= 100) {
                account.saveMoney();
                i++;
            }
        }
    }
}

class TakeMoney implements Runnable{
    Account account;
    int i = 1;
    
    public TakeMoney(Account account) {
        this.account = account;
    }

    @Override
    public void run() {
        synchronized (this) {
            while(i <= 100) {
                account.takeMoney();
                i++;
            }
            
        }
        
        
    }
    
}