用JAVA中的多线程示例银行取款问题-优快云博客

本文提供了一个关于Java中账户类的示例代码，通过使用synchronized关键字来确保线程安全地进行取款操作。该示例展示了如何创建账户类，并实现两个线程分别尝试从同一个账户中取款的过程。

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package com.softeem.demo;

/**
*@author leno
*账户类
*默认有余额，可以取款
*/
class Account {
    private float balance = 1000;

    public float getBalance() {
        return balance;
    }

    public void setBalance(float balance) {
        this.balance = balance;
    }

    /**
     *取款的方法需要同步
     *@param money
     */广州达内http://www.gztarena.com/
    public synchronized void withdrawals(float money) {
        if (balance >= money) {
            System.out.println("被取走" + money + "元!");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            balance -= money;
        } else {
            System.out.println("对不起,余额不足!");
        }
    }
}

/**
*@author leno
*银行卡
*/
class TestAccount1 extends Thread {
    private Account account;

    public TestAccount1(Account account) {
        this.account = account;
    }

    @Override
    public void run() {
        account.withdrawals(800);
        System.out.println("余额为:" + account.getBalance() + "元!");
    }
}

/**
*@authorleno
*存折
*/
class TestAccount2 extends Thread {

    private Account account;

    public TestAccount2(Account account) {
        this.account = account;
    }

    @Override
    public void run() {
        account.withdrawals(700);
        System.out.println("余额为:" + account.getBalance() + "元!");
    }
}

public class Test {
    public static void main(String[] args) {
        Account account = new Account();
        TestAccount1 testAccount1 = new TestAccount1(account);
        testAccount1.start();
        TestAccount2 testAccount2 = new TestAccount2(account);
        testAccount2.start();
    }
}