열혈강의 자바 24장 과제 1 [미완성]

//기본틀만 대충 잡아낫는데... 언제 완성할지...딴거 할게 너무 많으...
import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
import javax.swing.border.*;
class Ex1 extends JFrame implements ActionListener{
 private Container con;
 private JPanel p1=new JPanel();
 private JPanel p2=new JPanel();
 private JPanel p3=new JPanel();
 private JPanel p4=new JPanel();
 private JPanel p5=new JPanel();
 private JPanel p6=new JPanel();
 private JPanel p7=new JPanel();
 private JPanel p8=new JPanel();
 private JPanel p9=new JPanel();
 private JPanel p10=new JPanel();
 private JPanel p11=new JPanel();
 private JPanel p12=new JPanel();
 private JPanel p13=new JPanel();
 private JPanel p14=new JPanel();
 private JPanel p15=new JPanel();
 private JPanel p16=new JPanel();
 private JPanel p17=new JPanel();
 
 private CardLayout cl=new CardLayout();
 
 private JTextField tf1=new JTextField();
 private JTextField tf2=new JTextField();
 private JTextField tf3=new JTextField(30);
 private JTextField tf4=new JTextField(30);
 private JTextField tf5=new JTextField(5);
 
 private JTextArea tfa1=new JTextArea();
 
 private JList list1=new JList();
 
 
 private JButton bt1=new JButton("회원가입");
 private JButton bt2=new JButton("로그인");
 private JButton bt3=new JButton("대화시작");
 private JButton bt4=new JButton("전송");
 private JButton bt5=new JButton("종료");
 private JRadioButton rb1=new JRadioButton("귓속말 설정");
 private JRadioButton rb2=new JRadioButton("귓속말 해체");
 private ButtonGroup bg1=new ButtonGroup();
 
 
 private ImageIcon im1 =new ImageIcon("background.jpg");
 private JLabel jl1=new JLabel(im1);
 private JLabel jl2=new JLabel("명");
 public Ex1(String title){
  super(title);
  this.init();
  this.start();
  this.setSize(600,400);
  Dimension screen =Toolkit.getDefaultToolkit().getScreenSize(); //화면 크기 구함
  Dimension frm=super.getSize(); //f사이즈
  //f를 중앙에 출력하기위해 x,y좌표 구함
  int xpos =(int)(screen.getWidth()/2 -frm.getWidth()/2);
  int ypos =(int)(screen.getHeight()/2 -frm.getHeight()/2);
  this.setLocation(xpos,ypos);
  this.setResizable(false);
  this.setVisible(true);
  
 }
 public void init(){
  con=this.getContentPane();
  con.setLayout(cl);
  p1.setLayout(new BorderLayout());
  p1.add("North",p2);
  p2.setLayout(new BorderLayout());
  p2.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.RAISED), "Login Module"));
  tf1.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED), "ID"));
  p2.add("North",tf1);
  tf2.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED), "PASS"));
  p2.add("Center",tf2);
  p4.setLayout(new FlowLayout());
  p4.add(bt1);
  p4.add(bt2);
  p2.add("South",p4);
 
  p8.setLayout(new BorderLayout());
  p8.add("Center",jl1);  
  p5.setLayout(new GridLayout(1,3,5,5));
  p5.add(p6);
  p5.add(p7);
  p5.add(p1);
  p8.add("South",p5);
  con.add("login",p8);
  p9.setLayout(new BorderLayout());
  p10.setLayout(new FlowLayout());
  p10.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED), "Nick Name"));
  p10.add(tf3);
  p10.add(bt3);
  p11.setLayout(new BorderLayout());
  p11.add("North",p10);
  
  p12.setLayout(new BorderLayout());
  p12.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED), "View Pane"));
  p12.add(tfa1);
  p11.add("Center",p12);
  
  p13.setLayout(new FlowLayout());
  p13.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED), "Talk Data"));
  p13.add(tf4);
  p13.add(bt4);
  p11.add("South",p13);
  
  p9.add("West",p11);
  
  p14.setLayout(new FlowLayout());
  p14.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED), "총인원"));
  p14.add(tf5);
  p14.add(jl2);
  
  p15.setLayout(new GridLayout(3,1));
  p15.setBorder(new TitledBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED), "Option"));
  bg1.add(rb1);
  bg1.add(rb2);
  p15.add(rb1);
  p15.add(rb2);
  p15.add(bt5);
  
  p16.setLayout(new BorderLayout());
  p16.add("North",p14);
  
  p16.add("Center",list1);
  p16.add("South",p15);
  
  p9.add("Center",p16);
  
  
  
  con.add("chatting",p9);
 
  
 }
 public void start(){
  bt2.addActionListener(this);
 }
 @Override
 public void actionPerformed(ActionEvent e) {
  // TODO Auto-generated method stub
  if(e.getSource()==bt2){
   String id = tf1.getText();
   String pass = tf2.getText();
   if(id == null || pass == null || id.trim().length() == 0 || pass.trim().length() == 0) {
    JOptionPane.showMessageDialog(this,
     "ID나 PASS가 비었습니다.", "경고",
      JOptionPane.ERROR_MESSAGE);
    return;
   }
   cl.show(con, "chatting");
  }
 }
}
public class Ex01 {
 public static void main(String [] ar){
  Ex1 ex=new Ex1("Chatting~!");
 }
}