java银行排队系统源码_java银行系统代码

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文章目录:

Java中应用线程银行排队系统

//您可以使用重入锁实现排队。

package com.lw;

import java.util.concurrent.locks.Lock;

import java.util.concurrent.locks.ReentrantLock;

public class ReentrantLockDemo implements Runnable {

    

    private int number = 0;// 创建一个变量

    private Lock lock = new ReentrantLock();// 创建重入锁对象

    

    @Override

    public void run() {

        

        lock.lock();// 打开锁

        try {

            for (int i = 0; i  5; i++) {

                try {

                    Thread.sleep(100);// 线程休眠0.1秒

                } catch (InterruptedException e) {

                    e.printStackTrace();

                }

                // 输出当前线程的名称和number的值,每次循环之后number的值都会加一

                System.out.println(Thread.currentThread().getName() + ": "

                        + number++);

            }

        } finally {

            lock.unlock();// 释放锁

        }

    }

    

    public static void main(String[] args) {

        ReentrantLockDemo run = new ReentrantLockDemo();// 获得ReentrantLockDemo对象

        Thread thread1 = new Thread(run);// 创建线程1

        Thread thread2 = new Thread(run);// 创建线程2

        thread1.start();// 运行线程1

        thread2.start();// 运行线程2

    }

}

JAVA 简单银行系统的代码

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class AccountDemo {

public static double MONEY = 0;// 初始化金额是100元。

public static void main(String[] args) {

final String USER_NAME = "zhangsan";// 用户名

final String PASSWORD = "123456";// 密码

while (true) {

System.out.print("请输入用户名:");

String user_name = getString();

System.out.print("请输入密码:");

String password = getString();

if (user_name != null user_name.equals(USER_NAME)

password != null password.equals(PASSWORD)) {

System.out.println("登陆成功!你要干什么?");

while (true) {

System.out.println("1:存款");

System.out.println("2:取款");

System.out.println("3:查询余额");

System.out.println("q:退出程序");

System.out.print("请选择:");

String userIn = getString();

int in = 0;

if (userIn != null userIn.equals("1")) {

in = Integer.parseInt(userIn);

} else if (userIn != null userIn.equals("2")) {

in = Integer.parseInt(userIn);

} else if (userIn != null userIn.equals("3")) {

in = Integer.parseInt(userIn);

} else if (userIn != null

userIn.trim().toUpperCase().equals("Q")) {

in = 4;

} else {

System.out.println("你输入的指令不正确!请重新输入。");

continue;

}

switch (in) {

case 1:

double add_money = 0;

while (true) {

System.out.print("请输入你要存入的金额:");

try {

add_money = Double.parseDouble(getString());

} catch (Exception e) {

System.out.println("金额输入不正确!");

continue;

}

break;

}

MONEY += add_money;

System.out.println("存入的金额是" + add_money

+ "\r\n请选择你要的操作:");

break;

case 2:

double money = 0;

while (true) {

System.out.print("请输入你要取出的金额:");

try {

money = Double.parseDouble(getString());

} catch (Exception e) {

System.out.println("金额输入不正确!");

continue;

}

if (money MONEY) {

System.out.println("取出的金额大于现有存款,请重新输入要取出的金额!");

continue;

}

break;

}

MONEY -= money;

System.out.println("取出的金额是" + money + "\r\n请选择你要的操作:");

break;

case 3:

System.out.println("你的余额是:" + MONEY + "\r\n请选择你要的操作:");

break;

case 4:

System.out.println("程序退出!");

return;

}

}

} else {

System.out.println("错误:用户名与密码不匹配!\r\n");

System.out.println("按任意键:重新输入用户名和密码。");

System.out.println("q:退出程序。");

System.out.print("请选择:");

String in = getString();

if (in.trim().toUpperCase().equals("Q")) {

break;

}

}

}

}

public static String getString() {

String str = null;

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

try {

str = br.readLine();

} catch (IOException e) {

e.printStackTrace();

}

return str;

}

}

用java实现银行排队程序,要求模拟银行的业务排队系统,要有界面,实现完成的排队和叫号

import java.awt.Color;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import javax.swing.ButtonGroup;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

public class BankWaiting extends JFrame implements ActionListener {

int total = 0, now = 0;

boolean is1Ready = false, is2Ready = false, is3Ready = false;

int call1, call2, call3;

JFrame jf;

JLabel jr, jl, jl1, j2, jl2, j3, jl3;

JTextField jr4;

JButton jb, jb1, jb2, j1;

JButton workBut1, workBut2, workBut3;

JPanel jp, jp1, jp2;

public BankWaiting() {

setLayout(null);

jf = new JFrame("银行叫号程序");// 窗体

jr = new JLabel("请**号到*号窗口办理业务");

jr.setBounds(300, 10, 800, 50);

jr.setForeground(Color.red);

j1 = new JButton("取号");

j1.addActionListener(this);

jr4 = new JTextField("欢迎");

jr4.setEditable(false);

ButtonGroup bg = new ButtonGroup();

bg.add(j1);

jp = new JPanel();

jl = new JLabel("一号窗口");

jl1 = new JLabel("一号窗口,欢迎你!");

jb = new JButton("下一位");

workBut1 = new JButton("开始办理");

workBut1.addActionListener(this);

jb.addActionListener(this);

jp.setBackground(Color.pink);

jp.setSize(200, 80);// 大小

jp.setLocation(20, 120); // 位置

jf.setLayout(null);

jp1 = new JPanel();

j2 = new JLabel("二号窗口");

jl2 = new JLabel("二号窗口,欢迎你!");

jb1 = new JButton("下一位");

workBut2 = new JButton("开始办理");

jb1.addActionListener(this);

workBut2.addActionListener(this);

jp1.setBackground(Color.pink);

jp1.setSize(200, 80);// 大小

jp1.setLocation(250, 120); // 位置

jf.setLayout(null);

jp2 = new JPanel();

j3 = new JLabel("三号窗口");

jl3 = new JLabel("三号窗口,欢迎你!");

jb2 = new JButton("下一位");

workBut3 = new JButton("开始办理");

workBut3.addActionListener(this);

jb2.addActionListener(this);

jp2.setBackground(Color.pink);

jp2.setSize(200, 80);// 大小

jp2.setLocation(500, 120); // 位置

jf.setLayout(null);

jf.add(jp);

jf.add(jp1);

jf.add(jp2);

jf.add(jr);

jp.add(jl);

jp.add(jl1);

jp.add(jb);

jp.add(workBut1);

jp1.add(j2);

jp1.add(jl2);

jp1.add(jb1);

jp1.add(workBut2);

jp2.add(j3);

jp2.add(jl3);

jp2.add(jb2);

jp2.add(workBut3);

jf.add(j1);

jf.add(jr4);

j1.setBounds(550, 300, 60, 30);

jr4.setBounds(300, 300, 200, 40);

jf.setSize(800, 600);

jf.setVisible(true);

jf.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

}

public void actionPerformed(ActionEvent e) {

String s = "";

if (e.getSource() == j1) {

s = "第" + (++total) + "号,前面还有" + (total - now - 1) + "位顾客!";

jr4.setText(s);

}

if (e.getSource() == jb) {

if (this.hasCustomers()) {

s = "请" + (++now) + "号顾客到一号窗口办理";

call1 = now;

jl1.setText(s);

jr.setText(s);

is1Ready = true;

} else {

s = "当前已经没有顾客了";

jl1.setText(s);

is1Ready = false;

}

} else if (e.getSource() == jb1) {

if (this.hasCustomers()) {

s = "请" + (++now) + "号顾客到二号窗口办理";

call2 = now;

jl2.setText(s);

jr.setText(s);

is2Ready = true;

} else {

s = "当前已经没有顾客了";

jl2.setText(s);

is2Ready = false;

}

} else if (e.getSource() == jb2) {

if (this.hasCustomers()) {

s = "请" + (++now) + "号顾客到三号窗口办理";

call3 = now;

jl3.setText(s);

jr.setText(s);

is3Ready = true;

} else {

s = "当前已经没有顾客了";

jl3.setText(s);

is3Ready = false;

}

}

if (e.getSource() == workBut1) {

if (is1Ready) {

s = call1 + "号顾客正在办理业务。。。";

jl1.setText(s);

is1Ready = false;

}

} else if (e.getSource() == workBut2) {

if (is2Ready) {

s = call2 + "号顾客正在办理业务。。。";

jl2.setText(s);

is2Ready = false;

}

} else if (e.getSource() == workBut3) {

if (is3Ready) {

s = call3 + "号顾客正在办理业务。。。";

jl3.setText(s);

is3Ready = false;

}

}

}

public boolean hasCustomers() {

if (now total) {

return true;

} else {

return false;

}

}

public static void main(String[] args) {

new BankWaiting();

}

}

java多线程例子银行排队系统

写一个产生号码的方法,用synchronized 声明

再写几个线程调用它

求一个java web项目,包含源码,是银行排队系统!

可以通过Baidu Hi提示我

有时间可能完成你所面临的任务

相关的要求也可能提示我

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交易提醒:预付定金是诈骗

2条大神的评论

  • avatar
    访客 2022-07-05 下午 08:08:52

    quals("2")) { in = Integer.parseInt(userIn); } else if (userIn != null userIn.equals("3")) { in = Integer.parseInt(userIn); } e

  • avatar
    访客 2022-07-05 下午 07:45:37

    int in = 0; if (userIn != null userIn.equals("1")) { in = Integer.parseInt(userIn); } else if (

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