Add Panels To JFrame

**jo15765** · January 12th, 2019, 11:17 PM

Hello - I have a main jframe that I am using to launch a secondary jframe - now my secondary jframe launches as I would expect and shows the header info, however the left panel (or the right panel which I have left out) is not being added for some reason.

I am using NETBEANS - and this is my code for the JFrame

What do I need to add so that the two panels will be added?

package gametest;
 
import java.awt.Color;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
 
public class JFrameGamePlay extends javax.swing.JFrame {
 
    String playerimage;
    String cpuimage;
    String BattlesWon = "0";
    String BattlesLost = "0";
    String Gold = "0";
    String PlayerLevel = "1";
 
    public JFrameGamePlay() {
        initComponents();
    }
 
    public JFrameGamePlay(String playername, String playerselected) {
        initComponents();
        JPanel leftpanel = new JPanel();
        JPanel rightpanel = new JPanel();
        JSplitPane pane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftpanel, rightpanel);
 
        pnlPlayerInfo.setBackground(Color.WHITE);
 
            JLabel lblPlayer = new JLabel(new ImageIcon("/resources/House.png"));
            leftpanel.add(lblPlayer);
            leftpanel.validate();
            leftpanel.repaint();
            leftpanel.setVisible(true);
 
 
        //Setting variables
        txtPlayerName.setText(playername);
        txtPlayerName.setEditable(false);
        txtBattlesWon.setText(BattlesWon);
        txtBattlesWon.setEditable(false);
        txtBattlesLost.setText(BattlesLost);
        txtBattlesLost.setEditable(false);
        txtGold.setText(Gold); 
        txtGold.setEditable(false);
        txtPlayerLevel.setText(PlayerLevel);
        txtPlayerLevel.setEditable(false);
    }
 
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {
 
        pnlPlayerInfo = new javax.swing.JPanel();
        lblPlayerName = new javax.swing.JLabel();
        txtPlayerName = new javax.swing.JTextField();
        lblGold = new javax.swing.JLabel();
        txtGold = new javax.swing.JTextField();
        lblPlayerLevel = new javax.swing.JLabel();
        txtPlayerLevel = new javax.swing.JTextField();
        lblBattlesWon = new javax.swing.JLabel();
        txtBattlesWon = new javax.swing.JTextField();
        lblBattlesLost = new javax.swing.JLabel();
        txtBattlesLost = new javax.swing.JTextField();
        pnlPlayer = new javax.swing.JPanel();
        pnlCPU = new javax.swing.JPanel();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
        pnlPlayerInfo.setBackground(new java.awt.Color(255, 255, 255));
 
        lblPlayerName.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        lblPlayerName.setLabelFor(txtPlayerName);
        lblPlayerName.setText("Player Name:");
        lblPlayerName.setToolTipText("");
 
        txtPlayerName.setText("jTextField1");
 
        lblGold.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        lblGold.setLabelFor(txtGold);
        lblGold.setText("Gold:");
 
        txtGold.setText("jTextField1");
 
        lblPlayerLevel.setText("Player Level:");
 
        txtPlayerLevel.setText("jTextField1");
 
        lblBattlesWon.setLabelFor(txtBattlesWon);
        lblBattlesWon.setText("Battles Won:");
        lblBattlesWon.setToolTipText("");
 
        txtBattlesWon.setText("JTextField1");
        txtBattlesWon.setToolTipText("");
        txtBattlesWon.setName("txtBattlesWon"); // NOI18N
 
        lblBattlesLost.setLabelFor(txtBattlesLost);
        lblBattlesLost.setText("Battles Lost:");
 
        txtBattlesLost.setText("jTextField1");
 
        javax.swing.GroupLayout pnlPlayerInfoLayout = new javax.swing.GroupLayout(pnlPlayerInfo);
        pnlPlayerInfo.setLayout(pnlPlayerInfoLayout);
        pnlPlayerInfoLayout.setHorizontalGroup(
            pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(pnlPlayerInfoLayout.createSequentialGroup()
                .addContainerGap()
                .addGroup(pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(txtPlayerName)
                    .addComponent(lblPlayerName, javax.swing.GroupLayout.DEFAULT_SIZE, 113, Short.MAX_VALUE))
                .addGap(36, 36, 36)
                .addGroup(pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(txtGold)
                    .addComponent(lblGold, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addGap(34, 34, 34)
                .addGroup(pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(lblPlayerLevel)
                    .addComponent(txtPlayerLevel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(40, 40, 40)
                .addGroup(pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(lblBattlesWon)
                    .addComponent(txtBattlesWon, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(44, 44, 44)
                .addGroup(pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(txtBattlesLost, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(lblBattlesLost))
                .addContainerGap(18, Short.MAX_VALUE))
        );
        pnlPlayerInfoLayout.setVerticalGroup(
            pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(pnlPlayerInfoLayout.createSequentialGroup()
                .addContainerGap()
                .addGroup(pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(lblPlayerName)
                    .addComponent(lblGold)
                    .addComponent(lblPlayerLevel)
                    .addComponent(lblBattlesWon)
                    .addComponent(lblBattlesLost))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(pnlPlayerInfoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(txtPlayerName, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(txtGold, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(txtPlayerLevel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(txtBattlesWon, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(txtBattlesLost, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(15, Short.MAX_VALUE))
        );
 
        pnlPlayer.setBorder(new javax.swing.border.MatteBorder(null));
 
        javax.swing.GroupLayout pnlPlayerLayout = new javax.swing.GroupLayout(pnlPlayer);
        pnlPlayer.setLayout(pnlPlayerLayout);
        pnlPlayerLayout.setHorizontalGroup(
            pnlPlayerLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 141, Short.MAX_VALUE)
        );
        pnlPlayerLayout.setVerticalGroup(
            pnlPlayerLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 244, Short.MAX_VALUE)
        );
 
        pnlCPU.setBorder(new javax.swing.border.MatteBorder(null));
 
        javax.swing.GroupLayout pnlCPULayout = new javax.swing.GroupLayout(pnlCPU);
        pnlCPU.setLayout(pnlCPULayout);
        pnlCPULayout.setHorizontalGroup(
            pnlCPULayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 141, Short.MAX_VALUE)
        );
        pnlCPULayout.setVerticalGroup(
            pnlCPULayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 0, 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(pnlPlayerInfo, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(pnlPlayer, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addComponent(pnlCPU, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(pnlPlayerInfo, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(pnlPlayer, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(pnlCPU, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addGap(0, 84, Short.MAX_VALUE))
        );
 
        pack();
    }// </editor-fold>                        
 
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(JFrameGamePlay.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(JFrameGamePlay.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(JFrameGamePlay.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(JFrameGamePlay.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
 
        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new JFrameGamePlay().setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify                     
    private javax.swing.JLabel lblBattlesLost;
    private javax.swing.JLabel lblBattlesWon;
    private javax.swing.JLabel lblGold;
    private javax.swing.JLabel lblPlayerLevel;
    private javax.swing.JLabel lblPlayerName;
    private javax.swing.JPanel pnlCPU;
    private javax.swing.JPanel pnlPlayer;
    private javax.swing.JPanel pnlPlayerInfo;
    private javax.swing.JTextField txtBattlesLost;
    private javax.swing.JTextField txtBattlesWon;
    private javax.swing.JTextField txtGold;
    private javax.swing.JTextField txtPlayerLevel;
    private javax.swing.JTextField txtPlayerName;
    // End of variables declaration                   
}

**Norm** · January 13th, 2019, 07:10 AM

I am using NETBEANS

I see a lot of GUI code that was built by NB. Having that NB code in the class makes it hard to work with outside of the NB IDE.

**jim829** · January 13th, 2019, 09:48 AM

I would stay away from GUI designers in general. It is cleaner and you'll learn more by laying out the various components yourself. And it's poor form to extend JFrame. Just use an instance of it and work with that. Whenever possible, prefer composition instead of inheritance.

Regards,
Jim

**jo15765** · January 13th, 2019, 11:15 AM

Originally Posted by Norm

I see a lot of GUI code that was built by NB. Having that NB code in the class makes it hard to work with outside of the NB IDE.

Yes, I am using Netbeans GUI to write this code. - I just did a straight copy/paste of the class to ensure I did not omit any relevant code that could be causing my issue.

--- Update ---

Originally Posted by jim829

I would stay away from GUI designers in general. It is cleaner and you'll learn more by laying out the various components yourself. And it's poor form to extend JFrame. Just use an instance of it and work with that. Whenever possible, prefer composition instead of inheritance.

Regards,
Jim

So do not launch a new JForm from my main JForm, I should for example, have the one main JForm and have 2 JPanels one with the initial layout, then when the button is pressed, 'hide" that layout and show the secondary layout?

**Norm** · January 13th, 2019, 11:43 AM

There is code in the second constructor that does not look like it was added by the NB IDE. That will be a problem. Remove your code and
Try re-creating the GUI by using only the IDE's GUI creator. It is not easy or sometimes even possible to merge your own code in with the code generated by NB.

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