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在java的JFrame内通过创建匿名对象的方式做登录界面
package com.sxt; import java.awt.Container; 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.JPasswordField; import javax.swing.JTextField; public class LoginFrame extends JFrame{ JTextField txtname=new JTextField(); JPasswordField txtpass=new JPasswordField(); JButton bl=new JButton("登录"); JButton bg=new JButton("关闭"); //构造无参构造器把主要的方法放在构造器里,然后在main方法里面调 public LoginFrame(){ setBounds(25,25,250,250); Container c = getContentPane(); c.setLayout(new GridLayout(4,2,10,10)); c.add(new JLabel("用户名")); c.add(txtname); c.add(new JLabel("密码")); c.add(txtpass); c.add(bl); c.add(bg); setDefaultCloseOperation(EXIT_ON_CLOSE); setVisible(true); //注意:此处是匿名内部类 bg.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub System.exit(0); } } ); //注意:此处是匿名内部类 bl.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub String name = txtname.getText(); String pass = txtpass.getText(); if(name.equals("tom")&&pass.equals("123")){ System.out.println("登陆成功"); } else{ System.out.println("登录失败"); } } } ); } public static void main(String[] args) { new LoginFrame(); } }
结果展示: