请编写一个用户登录界面,界面中必须要有文本控件(TextView)、编辑框(EditText)、按钮(Button),分别用于显示用户名、密码,输入用户名、密码,登录功能
package com.zhidao20190103;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Test extends JFrame {
// 定义组件
JPanel jp1, jp2, jp3;
JLabel jl1, jl2;
JTextField jtf;
JPasswordField jpf;
JButton jb1, jb2;
public static void main(String[] args) {
Test test = new Test();
}
// 构造函数 初始化组件
public Test() {
jp1 = new JPanel();
jp2 = new JPanel();
jp3 = new JPanel();
jl1 = new JLabel("用户名");
jl2 = new JLabel("密 码");
jtf = new JTextField(10);
jpf = new JPasswordField(10);
jb1 = new JButton("登录");
jb2 = new JButton("取消");
jb1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JFrame frame = new JFrame("成功");
frame.setLayout(null);
frame.setBounds(0, 0, 200, 100);
frame.setVisible(true);
frame.setLocationRelativeTo(null);
}
});
jp1.add(jl1);
jp1.add(jtf);
jp2.add(jl2);
jp2.add(jpf);
jp3.add(jb1);
jp3.add(jb2);
this.add(jp1);
this.add(jp2);
this.add(jp3);
this.setLayout(new GridLayout(3, 1));
this.setTitle("登录");
this.setSize(400, 400);
this.setLocationRelativeTo(null);
this.setResizable(true);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Test extends JFrame {
// 定义组件
JPanel jp1, jp2, jp3;
JLabel jl1, jl2;
JTextField jtf;
JPasswordField jpf;
JButton jb1, jb2;
public static void main(String[] args) {
Test test = new Test();
}
// 构造函数 初始化组件
public Test() {
jp1 = new JPanel();
jp2 = new JPanel();
jp3 = new JPanel();
jl1 = new JLabel("用户名");
jl2 = new JLabel("密 码");
jtf = new JTextField(10);
jpf = new JPasswordField(10);
jb1 = new JButton("登录");
jb2 = new JButton("取消");
jb1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JFrame frame = new JFrame("成功");
frame.setLayout(null);
frame.setBounds(0, 0, 200, 100);
frame.setVisible(true);
frame.setLocationRelativeTo(null);
}
});
jp1.add(jl1);
jp1.add(jtf);
jp2.add(jl2);
jp2.add(jpf);
jp3.add(jb1);
jp3.add(jb2);
this.add(jp1);
this.add(jp2);
this.add(jp3);
this.setLayout(new GridLayout(3, 1));
this.setTitle("登录");
this.setSize(400, 400);
this.setLocationRelativeTo(null);
this.setResizable(true);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
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第1个回答 2019-01-03
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