package LL; import java.awt.Color; import java.awt.Font; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.*; public class CK { public static class work implements ActionListener { JFrame f; JPanel p,p1; JButton b,b1; JLabel l,l1,l2; JTextField t; JPasswordField s; public work() { f = new JFrame("QQ"); p = new JPanel(); p1 = new JPanel(); b = new JButton("注册:"); b1 = new JButton("登录:"); b1.setForeground(Color.GREEN); t = new JTextField(); s = new JPasswordField(); t.setBounds(110,82,200,28); s.setBounds(110,140,200,28); p.setLayout( null ); p1.setLayout(null); b.setBounds(90, 210, 80, 25); b1.setBounds(240, 210, 80, 25); b.addActionListener(this); b1.addActionListener(this); l = new JLabel("账号:"); l1 = new JLabel("密码:"); l2 = new JLabel("登录成功!"); l2.setBounds(130, 15, 150, 60); l.setBounds(75, 80, 80, 30); l1.setBounds(75, 140, 80, 30); p.add(b); p.add(b1); p.add(l); p.add(l1); p.add(t); p.add(s); p.setBackground(new Color(240,248,255)); p1.add(l2); f.add(p); f.setLocation(430,198); f.setVisible(true); f.setSize(435, 324); b1.setFont(new Font("仿宋", Font.BOLD, 13)); b.setFont(new Font("仿宋", Font.BOLD, 13)); } public static void main(String args[]) { new work(); } public void actionPerformed(ActionEvent e) { f.setVisible(false); JFrame f1 = new JFrame("QQ"); f1.setVisible(true); f1.add(p1); p1.add(l2); f1.setLocation(430,198); f1.setSize(450,180); p1.setBackground(new Color(230,230,250)); } } }