課后練習----實現窗口的切換

1、運用事件處理相關知識，完成兩個窗口之間的切換，例如：登陸窗口------》注冊窗口

package?Date;

import?java.awt.Color;

import?java.awt.Font;

import?java.awt.event.ActionEvent;

import?java.awt.event.ActionListener;

import?javax.swing.*;

public?class?myframe?implements?ActionListener {

???JFrame f1,f2;

???JPanel p1,p2;

???JButton b1,b2;

???JLabel l1,l2,l3;

???JTextField t1,t2;//文本框

???public?myframe() {

???????f1=new?JFrame("LYX");

???????f2=new?JFrame("LYX");

???????p1=new?JPanel();

???????p2=new?JPanel();

???????p1.setLayout(null);//流布局

???????p2.setLayout(null);

???????b1=new?JButton("注冊");

???????b2=new?JButton("登錄");

???????l1=new?JLabel("賬戶");

???????l1.setFont(new?Font("楷體",Font.BOLD,18));//自定義標簽字體

???????l2=new?JLabel("密碼");

???????l2.setFont(new?Font("楷體",Font.BOLD,18));

???????l3=new?JLabel("登錄成功!");

???????l3.setForeground(Color.red);

???????t1=new?JTextField();

???????t2=new?JTextField();

???????b1.addActionListener(this);

???????b2.addActionListener(this);

???????f1.add(p1);

???????p1.add(b1);

???????p1.add(b2);

???????p1.add(l1);

???????p1.add(l2);

???????p1.add(t1);

???????p1.add(t2);

???????b1.setBounds(150,150,60,40);

???????b2.setBounds(270,150,60,40);

???????l1.setBounds(80,50,40,30);

???????l2.setBounds(80,100,40,30);

???????t1.setBounds(120,50,300,30);

???????t2.setBounds(120,100,300,30);

???????f1.setVisible(true);

???????f1.setSize(500,300);

???}

????public?static?void?main(String[] args) {

?????????new?myframe();

}

????public?void?actionPerformed(ActionEvent e) {

????????f1.setVisible(false);

????????p2.setBackground(new?Color(211,252,4));//自定義面板顏色

????????f2.setVisible(true);

????????f2.add(p2);

????????p2.add(l3);

????????l3.setBounds(225,75,150,60);

????????f2.setLocation(600,0);

????????f2.setSize(500,300);

????}

}