How to show hide JPanels in a JFrame

Question

The application I am developing is a game   What I want to do is have JPanels that appear in the JFrame  like a text or message window  and then disappear when they are no longer used   I have designed these JPanels in Netbeans as external classes and want to be able to call them in an actionPerformed   method   JOptionPanes or other popup dialogs are not an option because they take the focus away from the game   I also saw someone suggest a CardLayout in a similar question   This is not what I want because I am not just trying to swap the panes   They should go away when the program tells them to   How would I do this  say by binding it to a JButton Action

User · Answer

If you want to hide panel on button click  write below code in JButton Action  I assume you want to hide jpanel1   jpanel1 setVisible false

User · Answer

Call parent remove panel   where parent is the container that you want the frame in and panel is the panel you want to add

User · Answer

To change this template  choose Tools   Templates    and open the template in the editor             Style1 java       Created on May 5  2011  6 31 16 AM     package Test   import javax swing JButton  import javax swing JFileChooser  import javax swing JOptionPane              author Sameera     public class Style2 extends javax swing JFrame            Creates new form Style1        public Style2             initComponents                   This method is called from within the constructor to        initialize the form         WARNING  Do NOT modify this code  The content of this method is        always regenerated by the Form Editor               SuppressWarnings  unchecked           lt editor-fold defaultstate  collapsed  desc  Generated Code  gt      private void initComponents              jPanel1   new javax swing JPanel            cmd SH   new javax swing JButton            pnl 2   new javax swing JPanel             setDefaultCloseOperation javax swing WindowConstants EXIT ON CLOSE            jPanel1 setBorder javax swing BorderFactory createLineBorder new java awt Color 0  0  0              cmd SH setText  Hide            cmd SH addActionListener new java awt event ActionListener                 public void actionPerformed java awt event ActionEvent evt                    cmd SHActionPerformed evt                                      javax swing GroupLayout jPanel1Layout   new javax swing GroupLayout jPanel1           jPanel1 setLayout jPanel1Layout           jPanel1Layout setHorizontalGroup              jPanel1Layout createParallelGroup javax swing GroupLayout Alignment LEADING               addGroup javax swing GroupLayout Alignment TRAILING  jPanel1Layout createSequentialGroup                    addContainerGap 558  Short MAX VALUE                   addComponent cmd SH                   addContainerGap                       jPanel1Layout setVerticalGroup              jPanel1Layout createParallelGroup javax swing GroupLayout Alignment LEADING               addGroup javax swing GroupLayout Alignment TRAILING  jPanel1Layout createSequentialGroup                    addContainerGap 236  Short MAX VALUE                   addComponent cmd SH                   addContainerGap                        pnl 2 setBorder javax swing BorderFactory createLineBorder new java awt Color 0  0  0              javax swing GroupLayout pnl 2Layout   new javax swing GroupLayout pnl 2           pnl 2 setLayout pnl 2Layout           pnl 2Layout setHorizontalGroup              pnl 2Layout createParallelGroup javax swing GroupLayout Alignment LEADING               addGap 0  621  Short MAX VALUE                     pnl 2Layout setVerticalGroup              pnl 2Layout createParallelGroup javax swing GroupLayout Alignment LEADING               addGap 0  270  Short MAX VALUE                      javax swing GroupLayout layout   new javax swing GroupLayout getContentPane             getContentPane   setLayout layout           layout setHorizontalGroup              layout createParallelGroup javax swing GroupLayout Alignment LEADING               addGroup layout createSequentialGroup                    addContainerGap                    addGroup layout createParallelGroup javax swing GroupLayout Alignment LEADING                       addComponent jPanel1  javax swing GroupLayout DEFAULT SIZE  javax swing GroupLayout DEFAULT SIZE  Short MAX VALUE                       addComponent pnl 2  javax swing GroupLayout DEFAULT SIZE  javax swing GroupLayout DEFAULT SIZE  Short MAX VALUE                    addContainerGap                       layout setVerticalGroup              layout createParallelGroup javax swing GroupLayout Alignment LEADING               addGroup layout createSequentialGroup                    addContainerGap                    addComponent jPanel1  javax swing GroupLayout PREFERRED SIZE  javax swing GroupLayout DEFAULT SIZE  javax swing GroupLayout PREFERRED SIZE                   addPreferredGap javax swing LayoutStyle ComponentPlacement UNRELATED                   addComponent pnl 2  javax swing GroupLayout PREFERRED SIZE  javax swing GroupLayout DEFAULT SIZE  javax swing GroupLayout PREFERRED SIZE                   addContainerGap 17  Short MAX VALUE                       pack             lt  editor-fold gt       private void cmd SHActionPerformed java awt event ActionEvent evt                                                     System out println evt getActionCommand             if  evt getActionCommand   equals  Hide                  pnl 2 setVisible false               cmd SH setText  Show                this setSize 643  294               this pack                        if  evt getActionCommand   equals  Show                  pnl 2 setVisible true               cmd SH setText  Hide                this setSize 643  583               this pack                                                                               param args the command line arguments             public static void main String args              java awt EventQueue invokeLater new Runnable                  public void run                     new Style1   setVisible true                                           Variables declaration - do not modify     private javax swing JButton cmd SH      private javax swing JPanel jPanel1      private javax swing JPanel pnl 2         End of variables declaration

User · Answer

You can hide a JPanel by calling setVisible false   For example   public static void main String args         JFrame f   new JFrame        f setLayout new BorderLayout         final JPanel p   new JPanel        p add new JLabel  A Panel         f add p  BorderLayout CENTER          create a button which will hide the panel when clicked      JButton b   new JButton  HIDE        b addActionListener new ActionListener            public void actionPerformed ActionEvent e                   p setVisible false                          f add b BorderLayout SOUTH       f pack        f setVisible true

[java] How to show/hide JPanels in a JFrame?

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