import java.awt.*;
import java.awt.event.*;

class PanelMainFrame extends Frame{
 Panel panel = null;
 private Button 남쪽;
 Button btn = 남쪽;
 TextArea textArea = null;

 class ButtonEventListener implements ActionListener{
  public void actionPerformed(ActionEvent ev){

  textArea.append("Hello World\\n");                                                        <<<<<< 이게 눌렀을때 이거 출력되게 어케해?
}
 }
 class WindowHandler extends WindowAdapter{
  public void windowClosing(WindowEvent ev) {
  }
  {
   System.out.println("프로그램을 종료");                                                <<<<<<<<<<<<<<<, 종료가 안되네 x표 눌러도 왝러징
   System.exit(0);
  }
 }

 public PanelMainFrame(){
  add(new Button("서쪽"), BorderLayout.WEST);
  add(new Button("남쪽"), BorderLayout.SOUTH);
  add(new Button("동쪽"), BorderLayout.EAST);
  add(new TextArea("중앙입니다. 북쪽은 패널이 붙어 있습니다"),BorderLayout.CENTER);

  panel = new Panel();
  panel.add(new Button("btn1"));
  panel.add(new Button("btn2"));
  panel.add(new Button("btn3"));
  add(panel,BorderLayout.NORTH);
  setSize(300,200);
  setVisible(true);
 }

}
public class PanelExam{
 public static void main(String[] args){
  PanelMainFrame panelFrame = new PanelMainFrame();

 }
}