Changing Panel view from

  To: comp.lang.java.gui
Hi all.
I hava a problem with my Gui. I have:
1 Frame with 2 panels (JPanel)
on first JPanel I have JComboBox object

and on second panel i want to have different objects for each
JComboBox Item :(JSlider, JTable etc) and i dont know how to do this.
I'm beginner in java

My code that works bad (creating a another Jpanel inside second JPanel
depending of choice JComboBox)

public class MainFrame extends JFrame{
         (...kod...)
             public MainFrame(){
             (...kod...)
                        //mainDesktops@MainFrame
                //1->z modelami
                mainDesktop1 = new JPanel();
                comboBox =new JComboBox();

                mainDesktop1.add(comboBox);
                comboBox.setBackground(Color.WHITE);

                for(int i=0; i<comboBoxItems.length;i++)
                        comboBox.addItem(comboBoxItems[i]);

                comboBox.addActionListener(new ActionListener(){
                        public void actionPerformed(ActionEvent eve){
                                mainDesktop2.removeAll();
                                mainDesktop2.validate();
 
mainDesktop2.add( setView(comboBox.getSelectedIndex()),BorderLayout.CENTER );
                                validate();
                        }//actionPerf
                });

                //2 -> opcje modeli
                mainDesktop2 = new JPanel();
                titleBorder2 =
BorderFactory.createLineBorder(Color.RED);
                add(mainDesktop2,BorderLayout.CENTER);
                mainDesktop2.setBackground(Color.BLACK);
                mainDesktop2.setBorder(new
javax.swing.border.TitledBorder(titleBorder2,titleBorder));

}//konstruktor

        JPanel setView(int wybor){
                JPanel pan = new JPanel();
                if (wybor==0){
                        bscLabel.setText("\n BER - probablity: \n" +
(int)(bscKanal.getProbablity()*100) +"%");
                        bscLabel.setForeground(Color.BLUE);

                        bscSlider.setMajorTickSpacing(20);
                        bscSlider.setPaintTicks(true);
                        bscSlider.setPaintLabels(true);
 
bscSlider.setBorder(BorderFactory.createLineBorder(Color.GRAY, 2));
                        bscKanal.setProbablity(bscSlider.getValue()/
100);
                        pan.add(bscLabel);
 
pan.add(bscSlider,BorderLayout.AFTER_LAST_LINE);
                }

                return pan;
        }

}//class

I will be thankfull if someone show a code that changing panel view
from JComboBox or any Idea how to do this

thanks

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