Обновление содержимого апплета

package myapplet;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class MyApplet extends JApplet implements ActionListener  {
JButton but1, but2, but3, but4, but5;
ButtonGroup Group;
JRadioButton RadioFlow, RadioBox;
JPanel PanelShow,PanelMain;
String check;
 
    @Override
public void actionPerformed(ActionEvent e) {
check = ((JRadioButton)e.getSource()).getText();
PanelShow.removeAll();
this.paint();
    }
 
    @Override
public void init()
 {
RadioFlow=new JRadioButton("FlowLayout");
RadioBox=new JRadioButton("BoxLayout",true);
 
RadioFlow.addActionListener(this);
RadioBox.addActionListener(this);
 
PanelMain = new JPanel();
PanelShow = new JPanel();
but1 = new JButton("Кнопка Раз");
but2 = new JButton("Кнопка Два");
but3 = new JButton("Кнопка Три");
but4 = new JButton("Кнопка Четыре");
but5 = new JButton("Кнопка Пять");
 
getContentPane().setLayout(new GridLayout(1,2,5,5));
 
Group=new ButtonGroup();
Group.add(RadioFlow);
Group.add(RadioBox);
PanelMain.setLayout(new BoxLayout(PanelMain,BoxLayout.Y_AXIS));
PanelMain.add(RadioFlow);
PanelMain.add(RadioBox);
getContentPane().add(PanelMain);
this.paint();
 }
 
 public void paint()
 {   
if("FlowLayout".equals(check)) {
PanelShow.setLayout(new FlowLayout());
PanelShow.add(but1);
PanelShow.add(but2);
PanelShow.add(but3);
PanelShow.add(but4);
PanelShow.add(but5);
} else {
PanelShow.setLayout(new BoxLayout(PanelShow,BoxLayout.Y_AXIS));
PanelShow.add(but1);
PanelShow.add(but2);
PanelShow.add(but3);
PanelShow.add(but4);
PanelShow.add(but5);
}
getContentPane().add(PanelShow);
}
 
}