🚀 go-pugleaf

Hello,
I have a problem with the application i am developing. I have an main
frame and the others are InternalFrames. In my main frame i have the
menu bar which i use in calling one of the internalframes. After i
click a button on the displayed internalframe, i would like the current
internalframa to hide/close while it will make another Internalframe
visible. I have made t like this for control reasons.

Here is my main frame class:
/*
 * Billing.java
 *
 * Created on 13. februar 2006, 14:33
 */

package systemInterface;
import billingsystem.Rooms;
import java.awt.*;


/**
 *
 * @author  noah
 */
public class Billing extends javax.swing.JFrame {

    /** Creates new form Billing */
    public Billing() {

        initComponents();
         int inset = 0;
        Dimension screenSize =
Toolkit.getDefaultToolkit().getScreenSize();
        setBounds(inset, inset, screenSize.width, screenSize.height -
30);

      /* addWindowListener(new WindowAdapter() {
             public void windowClosing(WindowEvent e) {
                 System.exit(0);
             }
         });
        */



    }

    /** 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.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">

    private void initComponents() {
        jDesktopPane1 = new javax.swing.JDesktopPane();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        Restaurant = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();


setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jMenu1.setText("Menu");
        jMenuBar1.add(jMenu1);

        Restaurant.setText("Restaurant");
        jMenuItem1.setText("Billing");
        jMenuItem1.addActionListener(new
java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt)
{
                jMenuItem1ActionPerformed(evt);
            }
        });

        Restaurant.add(jMenuItem1);

        jMenuBar1.add(Restaurant);

        setJMenuBar(jMenuBar1);

        org.jdesktop.layout.GroupLayout layout = new
org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jDesktopPane1,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 1031, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jDesktopPane1,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 496, Short.MAX_VALUE)
        );
        pack();
    }// </editor-fold>

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent
evt) {
// TODO add your handling code here:


        RoomInterface roomForm = new RoomInterface();
        roomForm.setVisible(true);
        jDesktopPane1.add(roomForm);
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Billing().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JMenu Restaurant;
    private javax.swing.JDesktopPane jDesktopPane1;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    // End of variables declaration

}


here is my first internalframe class:

/*
 * PurchaseInterface.java
 *
 * Created on 13. februar 2006, 10:24
 */

package systemInterface;
import java.awt.*;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import systemInterface.RoomInterface;
import java.awt.Button;
import java.awt.event.ActionEvent;


/**
 *
 * @author  noah
 */
public class PurchaseInterface extends javax.swing.JInternalFrame
implements ActionListener {

    /** Creates new form PurchaseInterface */
    public PurchaseInterface() {
        initComponents();
         int inset = 0;
     Dimension screenSize =
Toolkit.getDefaultToolkit().getScreenSize();
     setBounds(inset, inset, screenSize.width, screenSize.height - 30);

     init();
    }

    /** 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.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">
    private void initComponents() {
        jpQuantity = new javax.swing.JPanel();
        jBtn1 = new javax.swing.JButton();
        jBtn2 = new javax.swing.JButton();
        jBtn3 = new javax.swing.JButton();
        jBtn4 = new javax.swing.JButton();
        jBtn5 = new javax.swing.JButton();
        jBtn6 = new javax.swing.JButton();
        jBtn7 = new javax.swing.JButton();
        jBtn8 = new javax.swing.JButton();
        jBtn9 = new javax.swing.JButton();
        jBtn10 = new javax.swing.JButton();
        jBtnOK = new javax.swing.JButton();
        jBtnClear = new javax.swing.JButton();
        jTxtQuantity = new javax.swing.JTextField();
        jpProdPanel = new javax.swing.JPanel();
        jButton1 = new javax.swing.JButton();
        jPanel1 = new javax.swing.JPanel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jList1 = new javax.swing.JList();
        jBtnTotal = new javax.swing.JButton();


setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        jBtn1.setText("1");

        jBtn2.setText("2");

        jBtn3.setText("3");

        jBtn4.setText("4");

        jBtn5.setText("5");

        jBtn6.setText("6");

        jBtn7.setText("7");

        jBtn8.setText("8");

        jBtn9.setText("9");

        jBtn10.setText("0");

        jBtnOK.setText("ok");

        jBtnClear.setText("Clear");

        org.jdesktop.layout.GroupLayout jpQuantityLayout = new
org.jdesktop.layout.GroupLayout(jpQuantity);
        jpQuantity.setLayout(jpQuantityLayout);
        jpQuantityLayout.setHorizontalGroup(

jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING,
jpQuantityLayout.createSequentialGroup()
                .add(34, 34, 34)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                    .add(org.jdesktop.layout.GroupLayout.LEADING,
jTxtQuantity, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 247,
Short.MAX_VALUE)
                    .add(jpQuantityLayout.createSequentialGroup()

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                            .add(jBtnOK,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 78, Short.MAX_VALUE)

.add(org.jdesktop.layout.GroupLayout.LEADING, jBtn7,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 78, Short.MAX_VALUE)

.add(org.jdesktop.layout.GroupLayout.LEADING, jBtn4,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 78, Short.MAX_VALUE)
                            .add(jBtn1,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 78, Short.MAX_VALUE))

.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING,
false)

.add(org.jdesktop.layout.GroupLayout.LEADING, jBtn10, 0, 0,
Short.MAX_VALUE)

.add(org.jdesktop.layout.GroupLayout.LEADING, jBtn8,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.add(org.jdesktop.layout.GroupLayout.LEADING, jBtn5,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.add(org.jdesktop.layout.GroupLayout.LEADING, jBtn2,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 76, Short.MAX_VALUE))

.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                            .add(jBtnClear,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 81, Short.MAX_VALUE)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING,
false)

.add(org.jdesktop.layout.GroupLayout.TRAILING, jBtn6,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                .add(jBtn3,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 72, Short.MAX_VALUE)

.add(org.jdesktop.layout.GroupLayout.TRAILING, jBtn9,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 81, Short.MAX_VALUE)))))
                .addContainerGap())
        );
        jpQuantityLayout.setVerticalGroup(

jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jpQuantityLayout.createSequentialGroup()
                .add(43, 43, 43)
                .add(jTxtQuantity,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 48,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(75, 75, 75)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jBtn2,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 53,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jBtn3,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 51,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jBtn1,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 53,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(6, 6, 6)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jBtn5,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 55,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jBtn4,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 50,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jBtn6,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 55,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))

.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jBtn8,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 50,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jBtn7,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 49,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jBtn9,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 49,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jpQuantityLayout.createSequentialGroup()

.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                        .add(jBtn10,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 52,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                    .add(jpQuantityLayout.createSequentialGroup()
                        .add(45, 45, 45)

.add(jpQuantityLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                            .add(jBtnClear,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 48,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                            .add(jBtnOK,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 50,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))))
                .add(63, 63, 63))
        );

        jButton1.setText("jButton1");

        org.jdesktop.layout.GroupLayout jpProdPanelLayout = new
org.jdesktop.layout.GroupLayout(jpProdPanel);
        jpProdPanel.setLayout(jpProdPanelLayout);
        jpProdPanelLayout.setHorizontalGroup(

jpProdPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jpProdPanelLayout.createSequentialGroup()
                .add(21, 21, 21)
                .add(jButton1)
                .addContainerGap(102, Short.MAX_VALUE))
        );
        jpProdPanelLayout.setVerticalGroup(

jpProdPanelLayout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jpProdPanelLayout.createSequentialGroup()
                .add(66, 66, 66)
                .add(jButton1)
                .addContainerGap(385, Short.MAX_VALUE))
        );

        jList1.setModel(new javax.swing.AbstractListModel() {
            String[] strings = { "Item 1", "Item 2", "Item 3", "Item
4", "Item 5" };
            public int getSize() { return strings.length; }
            public Object getElementAt(int i) { return strings[i]; }
        });
        jScrollPane1.setViewportView(jList1);

        jBtnTotal.setText("Total");

        org.jdesktop.layout.GroupLayout jPanel1Layout = new
org.jdesktop.layout.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(

jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()

.add(jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jPanel1Layout.createSequentialGroup()
                        .add(83, 83, 83)
                        .add(jBtnTotal,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 120,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                    .add(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .add(jScrollPane1,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 266,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))

.addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(

jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .add(jScrollPane1,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 337,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)

.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jBtnTotal,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 31, Short.MAX_VALUE)
                .addContainerGap())
        );

        org.jdesktop.layout.GroupLayout layout = new
org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING,
layout.createSequentialGroup()
                .addContainerGap(235, Short.MAX_VALUE)
                .add(jpProdPanel,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)

.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jpQuantity,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)

.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jPanel1,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(29, 29, 29))
        );
        layout.setVerticalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap(102, Short.MAX_VALUE)

.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(jpQuantity,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 438,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(layout.createSequentialGroup()
                        .add(28, 28, 28)

.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                            .add(jPanel1,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                            .add(jpProdPanel,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE,
org.jdesktop.layout.GroupLayout.DEFAULT_SIZE,
org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))))
                .addContainerGap())
        );
        pack();
    }// </editor-fold>

    /**
     * @param args the command line arguments
     */

    // Variables declaration - do not modify
    private javax.swing.JButton jBtn1;
    private javax.swing.JButton jBtn10;
    private javax.swing.JButton jBtn2;
    private javax.swing.JButton jBtn3;
    private javax.swing.JButton jBtn4;
    private javax.swing.JButton jBtn5;
    private javax.swing.JButton jBtn6;
    private javax.swing.JButton jBtn7;
    private javax.swing.JButton jBtn8;
    private javax.swing.JButton jBtn9;
    private javax.swing.JButton jBtnClear;
    private javax.swing.JButton jBtnOK;
    private javax.swing.JButton jBtnTotal;
    private javax.swing.JButton jButton1;
    private javax.swing.JList jList1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField jTxtQuantity;
    private javax.swing.JPanel jpProdPanel;
    private javax.swing.JPanel jpQuantity;
    // End of variables declaration
    }

the second internal frame i want to call is like this:

/*
 * Rooms.java
 *
 * Created on 13. februar 2006, 11:44
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package billingsystem;
import java.awt.*;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import systemInterface.RoomInterface;
import java.awt.Button;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import systemInterface.PurchaseInterface;
import javax.swing.JInternalFrame;
/**
 *
 * @author noah
 */
public class Rooms extends javax.swing.JInternalFrame implements
ActionListener {

    int roomNum =0;

    Button[] roomButton = new Button[5];
    Container content = getContentPane();


    PurchaseInterface newPurchase = new PurchaseInterface();
    Rooms room = new Rooms();
    /** Creates a new instance of Rooms */
    public Rooms() {
      init();
      int inset = 0;
     Dimension screenSize =
Toolkit.getDefaultToolkit().getScreenSize();
     setBounds(inset, inset, screenSize.width, screenSize.height - 30);


    }



    public void setRoomNumber(int rmNumber){
        roomNum= rmNumber;

    }
    public int getRoomNumber(){
        return this.roomNum;
    }



  // Attributes
  String   slogan  = "Java Online";
  Button[] toolBar = new Button[5];

  public void init()
  {
    // 1. Toolbar Panel
    Panel p = new Panel();
    p.setLayout(new GridLayout(0,4));
    p.setBackground(Color.lightGray);

    // 2. Create the toolBar Buttons
    String[] captions =
      { "Red", "Blue", "Green", "Yellow", "Black" };

    for (int i = 0; i < toolBar.length; i++)
    {
      toolBar[i] = new Button(captions[i]);
      toolBar[i].addActionListener(this);

      p.add(toolBar[i]);
    }

    // 3. Add the Panel to the top of the applet
    //setLayout(new BorderLayout());
   content.add(p, "North");
  }

  public void actionPerformed(ActionEvent ae)
  // Here we call the form that is related to purchase using query
based on the room selected
  {
    // 1. Retrieve source of click
    Object obj = ae.getSource();

    // 2. Match it with toolBar Button
    int clicked;
    for (clicked = 0; clicked < toolBar.length; clicked++)
    {
      if (obj == toolBar[clicked])
        break;
    }
     PurchaseInterface newPurchase = new PurchaseInterface();
    Rooms room = new Rooms();
    // 3. Take action based upon Button pressed
    switch (clicked)
    {


      case 0:   newPurchase.setVisible(true);  room.setEnabled(false);
break;//content.setBackground(Color.red);
      case 1:   content.setBackground(Color.blue);  break;
      case 2:   content.setBackground(Color.green);   break;
      case 3:   content.setBackground(Color.yellow);  break;
      case 4:   content.setBackground(Color.black);   break;
    }
    //repaint();
  }

  

}