【年少的风】控制台模拟银行操作

 

import javax.swing.*;
import java.awt.event.*;

public class TestBank {
    public static void main(String args[]) {
        new MyFrame().frame();
    }
}

class MyListener implements ActionListener {

    public void actionPerformed(ActionEvent e) {
        System.out.print(e.getSource());
        System.out.print("btShowMoney clicked");
    }
}

class MyFrame extends JFrame {
    void frame() {
        Object[] possibleValues = { "用户1", "用户2" };
        Object selectedValue = JOptionPane.showInputDialog(null, "Choose one",
                "Input", JOptionPane.INFORMATION_MESSAGE, null, possibleValues,
                possibleValues[0]);

        // System.out.println();
        JFrame frame = new JFrame(selectedValue.toString() + "正在操作");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setBounds(300, 300, 300, 300);
        // frame.setLayout(new FlowLayout());
        JButton btGetMoney = new JButton("取款");
        btGetMoney.addActionListener(new MyListener());
        JButton btSaveMoney = new JButton("存款");
        btSaveMoney.addActionListener(new MyListener());
        JButton btShowMoney = new JButton("显示余额");
        btShowMoney.addActionListener(new MyListener());
        JButton btShowName = new JButton("显示帐号");
        btShowName.addActionListener(new MyListener());

        frame.add(btGetMoney);
        frame.add(btSaveMoney);
        frame.add(btShowMoney);
        frame.add(btShowName);

        frame.setVisible(true);
    }
}