Question

Java编写一个窗体,用户可以输入用户名密码，求大神帮助

用Java编写一个窗体,用户可以输入用户名密码
要求：按确定的时候,弹出提示框,显示"你输入的姓名为:"+用户输入的姓名.
按退出按钮时,窗体关闭.
求大神帮助我呀

Answer 1

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPasswordField;

import javax.swing.JTextField;

public class FrameTest extends JFrame implements ActionListener {

private JTextField textField;

private JPasswordField passwordField;

private JButton button;

public FrameTest() {

super("窗体测试");

textField = new JTextField("这里写姓名，下面写密码");

passwordField = new JPasswordField("");

button = new JButton("确定");

textField.setBounds(60, 10, 200, 30);

passwordField.setBounds(60, 70, 200, 30);

button.setBounds(70, 120, 150, 35);

button.addActionListener(this);

this.setLayout(null);

this.add(textField);

this.add(passwordField);

this.add(button);

this.setSize(300, 200);

this.setDefaultCloseOperation(3);

this.setVisible(true);

}

@Override

public void actionPerformed(ActionEvent e) {

JOptionPane.showMessageDialog(this, "你输入的姓名为：" + textField.getText());

}

public static void main(String[] args) {

new FrameTest();

}

}