Problem when add component

Question

Hi all!
I am newbie at swing and i want to ask something..
I create a swing interface with some components but when i call a function and a player component in a JPanel, all the other components of the application disappear!
Why?
Thank in advance,
muldergr

Answer 1

ok ok.. i post some code:
public class FrameMain extends JFrame {
     public FrameMain() {
          initialize();
     private void initialize() {
          this.setSize(1024, 768);
          this.setContentPane(getJPanel());
          this.setVisible(true);
     private JPanel getJPanel() {
          if (jPanel == null) {
               jPanel = new JPanel();
               jPanel.setLayout(null);
               jPanel.add(getJTabbedPane(), null);
          return jPanel;
     private JTabbedPane getJTabbedPane() {
          if (jTabbedPane == null) {
               jTabbedPane = new JTabbedPane();
               jTabbedPane.setSize(new java.awt.Dimension(1024,768));
               jTabbedPane.setLocation(new java.awt.Point(0,10));
               jTabbedPane.addTab("", null, getJPanel1(), null);
          return jTabbedPane;
     private JPanel getJPanel1() {
          if (jPanel1 == null) {
               jPanel1 = new JPanel();
               jPanel1.setLayout(null);
               jPanel1.setPreferredSize(new java.awt.Dimension(1,1));
               jPanel1.add(getJTabbedPane1(), null);
               jPanel1.add(getJPanel3(), null);
               jPanel1.add(getJPanel5(), null);
               jPanel1.add(getJPanel4(), null);
          return jPanel1;
          private JPanel getJPanel5() {
          if (jPanel5 == null) {
               jPanel5 = new JPanel();
               jPanel5.setLayout(null);
               jPanel5.setLocation(new java.awt.Point(650,18));
               jPanel5.setSize(new java.awt.Dimension(340,425));
               jPanel5.setBorder(new TitledBorder(null,"Video"));
               jPanel5.add(getPanelPlayer(), null);
               jPanel5.add(getPanelControl(), null);
          return jPanel5;
          private JPanel getPanelPlayer() {
          if (panelPlayer == null) {
               panelPlayer = new JPanel();
               panelPlayer.setSize(new java.awt.Dimension(320,240));
               panelPlayer.setLocation(new java.awt.Point(10,50));
               panelPlayer.setLayout(new GridLayout(1,1));
               panelPlayer.add(player.getVisualComponent());
          return panelPlayer;
          private JPanel getPanelControl() {
          if (panelControl == null) {
               panelControl = new JPanel();
               panelControl.setSize(new java.awt.Dimension(320,20));
               panelControl.setLocation(new java.awt.Point(10,290));
               panelControl.setLayout(new GridLayout(1,1));
               panelControl.add(player.getControlPanelComponent());
          return panelControl;
}     and i also have a function like this:
          private void createVideoWindow(String inVideoFile){
          this.getPlayer(inVideoFile);
          jPanel5.add(getPanelPlayer(), null);
          jPanel5.add(getPanelControl(), null);
     }but when i call this, all the other components of jpanel1 disappear..
any help?