Question

用Java编写用户注册界面，包含：用户名、密码、密码确认、邮箱，以及注册和清空两个按钮。求高手，感谢!

⑴编写界面，包括4个标签，2个文本框，2个密码框，2个按钮
⑵初始化上述控件
⑶为输入和按钮添加事件响应

当按要求输入信息时，点击注册按钮，在窗口上提示注册成功！两个密码框输入信息时显示的是点。

Answer 1

界面建议用可视化来做，美观且便捷。下面这个是完全用代码写的，仅供参考。
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.sql.*;
public class Register extends JFrame {
JLabel jl1 = new JLabel("用户名");
JTextField jt1 = new JTextField();
JLabel jl2 = new JLabel("邮箱");
JTextField jt2 = new JTextField();
JLabel jl3 = new JLabel("密码");
JPasswordField jpw1 = new JPasswordField();
JLabel jl4 = new JLabel("密码确认");
JPasswordField jpw2 = new JPasswordField();
JButton register = new JButton("注册");
JButton clean = new JButton("清空");
public Register(){
setLayout(new GridLayout(5,2));
add(jl1);
add(jt1);
add(jl2);
add(jt2);
add(jl3);
add(jpw1);
add(jl4);
add(jpw2);
add(register);
add(clean);
String name = jt1.getText();
String email = jt2.getText();
String pw = jpw1.getText();
register.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost/db","root","");
Statement sta = con.createStatement();
sta.executeUpdate("INSERT INTO register VALUES(name,email,pw)");
JOptionPane.showMessageDialog(null,"注册成功","提示",JOptionPane.INFORMATION_MESSAGE);
}
catch(Exception ex){
ex.getStackTrace();
}
}
});
clean.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
jt1.setText("");
jt2.setText("");
jpw1.setText("");
jpw2.setText("");
}
});
}
public static void main(String[] args){
Register frame = new Register();
frame.setTitle("用户注册");
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400,400);
frame.setVisible(true);
}
}

Answer 2

我是高手，你，看不懂