Java学习：一个仿ATM机键盘做的密码输入 |
您所在的位置：网站首页 › atm机数字键盘 › Java学习：一个仿ATM机键盘做的密码输入 |
Java学习：一个仿ATM机键盘做的密码输入
|
1.程序运行截图：
2.程序实现的功能 1）进入程序时，程序会询问你输入一个密码 2）进入键盘界面后，按下数字0-9可以输入一个字符，按取消按钮可以退出程序，重置按钮可以将上面的JPasswordField变为空，按下确定按钮，提示输入的密码是否正确 3.程序代码 import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.Arrays; import javax.swing.*; public class FrameTest_20150214 { //密码 public static char[] correctPassword = {'1', '2', '3', '4', '5', '6'}; public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { //输入一个密码，要求密码全部为数字组成 boolean isNumber = false; String inputPassword = ""; while(!isNumber) { inputPassword = JOptionPane.showInputDialog("请输入一个密码"); isNumber = inputPassword.matches("[0-9]+"); } correctPassword = inputPassword.toCharArray(); //打开窗体 TestFrame testFrame = new TestFrame(correctPassword); testFrame.setVisible(true); } }); } } //密码输入窗体 class TestFrame extends JFrame { private static final long serialVersionUID = 1L; private static final int DEFAULT_WIDTH = 600; private static final int DEFAULT_HEIGHT = 400; //密码输入框 JPasswordField psdDisplay; //数字键盘容器 JPanel panel; //数字键盘上的按钮 JButton btnNum1; //按键1 JButton btnNum2; //按键2 JButton btnNum3; //按键3 JButton btnNum4; //按键4 JButton btnNum5; //按键5 JButton btnNum6; //按键6 JButton btnNum7; //按键7 JButton btnNum8; //按键8 JButton btnNum9; //按键9 JButton btnNum0; //按键0 JButton btnDot; //小数点 JButton btnNum00; //按键00 JButton btnOK; //确认 JButton btnCancel; //取消 JButton btnReset; //重置 //正确的密码 private char[] correctPassword; //构造函数 public TestFrame(char[] password) { correctPassword = password; SetTestFrame(); SetControls(); } //设置窗体 private void SetTestFrame() { //窗口大小 setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT); //窗口居中 Dimension dim = Toolkit.getDefaultToolkit().getScreenSize(); setLocation( (dim.width - getSize().width) / 2, (dim.height - getSize().height) / 2); //标题 setTitle("This is a Frame for test!"); //使窗体边界无法改变（也无法进行最大化） setResizable(false); //关闭窗口时退出程序 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } //设置控件 private void SetControls() { setLayout(new BorderLayout()); //密码输入框 psdDisplay = new JPasswordField(); psdDisplay.setEchoChar('*'); psdDisplay.setHorizontalAlignment(JTextField.CENTER); psdDisplay.setFont(new Font("Times New Roman", Font.BOLD, 60)); psdDisplay.setEditable(false); add(psdDisplay, BorderLayout.NORTH); //要绑定的事件 InsertNumberAction insertNumber = new InsertNumberAction(); OkCommandAction okCommand = new OkCommandAction(); CancelCommandAction cancelCommand = new CancelCommandAction(); ResetCommandAction resetCommand = new ResetCommandAction(); //输入键盘 panel = new JPanel(); panel.setLayout(new GridLayout(4, 4)); //数字7 btnNum7 = new JButton("7"); btnNum7.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum7.addActionListener(insertNumber); panel.add(btnNum7); //数字8 btnNum8 = new JButton("8"); btnNum8.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum8.addActionListener(insertNumber); panel.add(btnNum8); //数字9 btnNum9 = new JButton("9"); btnNum9.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum9.addActionListener(insertNumber); panel.add(btnNum9); //取消按钮 btnCancel = new JButton("取消"); btnCancel.setForeground(Color.RED); btnCancel.setFont(new Font("宋体", Font.BOLD, 40)); btnCancel.addActionListener(cancelCommand); panel.add(btnCancel); //数字4 btnNum4 = new JButton("4"); btnNum4.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum4.addActionListener(insertNumber); panel.add(btnNum4); //数字5 btnNum5 = new JButton("5"); btnNum5.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum5.addActionListener(insertNumber); panel.add(btnNum5); //数字6 btnNum6 = new JButton("6"); btnNum6.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum6.addActionListener(insertNumber); panel.add(btnNum6); //重置按钮 btnReset = new JButton("重置"); btnReset.setForeground(Color.BLUE); btnReset.setFont(new Font("宋体", Font.BOLD, 40)); btnReset.addActionListener(resetCommand); panel.add(btnReset); //数字1 btnNum1 = new JButton("1"); btnNum1.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum1.addActionListener(insertNumber); panel.add(btnNum1); //数字2 btnNum2 = new JButton("2"); btnNum2.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum2.addActionListener(insertNumber); panel.add(btnNum2); //数字3 btnNum3 = new JButton("3"); btnNum3.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum3.addActionListener(insertNumber); panel.add(btnNum3); //空按钮 panel.add(new JButton("")); //小数点（摆设） btnDot = new JButton("."); btnDot.setFont(new Font("Andalus", Font.BOLD, 60)); panel.add(btnDot); //数字0 btnNum0 = new JButton("0"); btnNum0.setFont(new Font("Andalus", Font.BOLD, 60)); btnNum0.addActionListener(insertNumber); panel.add(btnNum0); //数字00（摆设） btnNum00 = new JButton("00"); btnNum00.setFont(new Font("Andalus", Font.BOLD, 60)); panel.add(btnNum00); //确定按钮 btnOK = new JButton("确定"); btnOK.setForeground(Color.GREEN); btnOK.setFont(new Font("宋体", Font.BOLD, 40)); btnOK.addActionListener(okCommand); panel.add(btnOK); add(panel, BorderLayout.CENTER); } //按下数字按钮触发的事件 private class InsertNumberAction implements ActionListener { public void actionPerformed(ActionEvent event) { psdDisplay.setText(String.valueOf(psdDisplay.getPassword()) + event.getActionCommand()); } } //按下确定按钮触发的事件 private class OkCommandAction implements ActionListener { public void actionPerformed(ActionEvent event) { char[] inputPassword = psdDisplay.getPassword(); boolean isMatch = true; //密码长度需要相同 if (inputPassword.length != correctPassword.length) { isMatch = false; } //密码长度相同的情况下各位要一致 if (isMatch) { isMatch = Arrays.equals(inputPassword, correctPassword); } if (isMatch) { JOptionPane.showMessageDialog(null, "密码正确！", "提示信息", JOptionPane.INFORMATION_MESSAGE); } else { JOptionPane.showMessageDialog(null, "密码错误", "错误信息", JOptionPane.ERROR_MESSAGE); psdDisplay.setText(""); } } } //按下取消按钮触发的事件 private class CancelCommandAction implements ActionListener { public void actionPerformed(ActionEvent event) { JOptionPane.showMessageDialog(null, "即将退出程序", "提示信息", JOptionPane.INFORMATION_MESSAGE); System.exit(0); } } //按下重置按钮触发的事件 private class ResetCommandAction implements ActionListener { public void actionPerformed(ActionEvent event) { psdDisplay.setText(""); } } }END |
【本文地址】
今日新闻 |
推荐新闻 |