doubt about "this" object in java

Question

Dhanesh10 0 Newbie Poster

12 Years Ago

hello friends,
i have two frames suppose A and B,

when i open or make visible frame B from frame A by making a new object of frame B, I make invisible frame A by " this.setVisible(false); "

when i done with work in frame B, i need to close frame B (that i do with dispose method)
and again want to make visible frame A.

now how can i make visible frame A from frame B that i made invisible by this object in frame A earlier ?

Do i need to make new object of frame A in frame B ? If so, then how to retain or maintain previous values in frame A?

java

Edited 12 Years Ago by Dhanesh10 because: n/a

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Latest Post 12 Years Ago Latest Post by Dhanesh10

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Majestics 84 Posting Pro

12 Years Ago

//opening Frame B

frameA.setVisible(false);
frameB = new JFrame();
frameB.setVisible(true);
//Or
frameB.setVisible(true);

// Closing Frame B

frameA.setVisible(true);
frameB.dispose();

Just remove your title bar from frame B and provide a close button.

Majestics 84 Posting Pro

12 Years Ago

If you have used single class then both objects can easily see each other, if u are using two different classes then pass them to constructor as reference

classBFrame = new classBFrame(FrameA);

Also paste your code here.............

Edited 12 Years Ago by Majestics because: n/a

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Dhanesh10 0 Newbie Poster · Answer 1 · 2011-07-19T12:17:28+00:00

buddy, nonstatic method setVisible method can not be referenced from a static context,
this error is coming, we need to create object but if w do so, as i mentioned above also, we'll be creating new object and thus can't keep previous values...
my problem is that, how to make visible a frame from another frame that I made invisible by using this object..

mKorbel 274 Veteran Poster · Answer 2 · 2011-07-19T13:31:47+00:00

@Majestics

then pass them to constructor as reference == parent

Dhanesh10 0 Newbie Poster · Answer 3 · 2011-07-19T13:55:57+00:00

Home frame

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * Home.java
 *
 * Created on Jul 16, 2011, 4:08:47 PM
 */

package dhanesh;

import javax.swing.JOptionPane;

/**
 *
 * @author Dhanesh
 */
public class Home extends javax.swing.JFrame {

    /** Creates new form Home */
    public Home() {
        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")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jButton3 = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jTextField2 = new javax.swing.JTextField();
        jButton4 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(dhanesh.DhaneshApp.class).getContext().getResourceMap(Home.class);
        setTitle(resourceMap.getString("Form.title")); // NOI18N
        setAlwaysOnTop(true);
        setBackground(resourceMap.getColor("Form.background")); // NOI18N
        setName("Form"); // NOI18N
        setResizable(false);
        getContentPane().setLayout(new java.awt.GridBagLayout());

        jPanel1.setBackground(resourceMap.getColor("jPanel1.background")); // NOI18N
        jPanel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        jPanel1.setName("jPanel1"); // NOI18N

        jButton1.setText(resourceMap.getString("jButton1.text")); // NOI18N
        jButton1.setName("jButton1"); // NOI18N
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText(resourceMap.getString("jButton2.text")); // NOI18N
        jButton2.setName("jButton2"); // NOI18N
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jButton3.setText(resourceMap.getString("jButton3.text")); // NOI18N
        jButton3.setName("jButton3"); // NOI18N
        jButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton3ActionPerformed(evt);
            }
        });

        jLabel1.setText(resourceMap.getString("jLabel1.text")); // NOI18N
        jLabel1.setName("jLabel1"); // NOI18N

        jTextField1.setText(resourceMap.getString("jTextField1.text")); // NOI18N
        jTextField1.setName("jTextField1"); // NOI18N

        jTextField2.setText(resourceMap.getString("jTextField2.text")); // NOI18N
        jTextField2.setName("jTextField2"); // NOI18N

        jButton4.setText(resourceMap.getString("jButton4.text")); // NOI18N
        jButton4.setName("jButton4"); // NOI18N
        jButton4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton4ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(33, 33, 33)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 171, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 116, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(79, 79, 79)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                            .addComponent(jTextField2, javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jTextField1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 85, Short.MAX_VALUE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jButton4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, 146, Short.MAX_VALUE)))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                        .addGap(207, 207, 207)
                        .addComponent(jButton3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(37, 37, 37)
                .addComponent(jLabel1)
                .addGap(18, 18, 18)
                .addComponent(jButton1)
                .addGap(30, 30, 30)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton2))
                .addGap(26, 26, 26)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jButton4))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 20, Short.MAX_VALUE)
                .addComponent(jButton3)
                .addContainerGap())
        );

        getContentPane().add(jPanel1, new java.awt.GridBagConstraints());

        pack();
    }// </editor-fold>                        

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        if(evt.getSource()==jButton1)
        {
            
            this.setVisible(false);
            new NewAccountForm();
           
        }
            //JOptionPane.showMessageDialog(null, "Tested.");
    }                                        

    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
    }                                        

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
      int acno=0;
        int amount=100;
        int total=2000;
        String nm="ABC";
        int phn=9999;
        String addr="XYZ";
        if(evt.getSource()==jButton2)
        {
            if(jTextField1.getText().equals("") ||jTextField1.getText().equals("acc no") )
                {
                    JOptionPane.showMessageDialog(null, "Please Enter the Account Number to search the client.");
                    return;
                }
        else acno= Integer.parseInt(jTextField1.getText());
            Search S=new Search(acno,amount,total,nm,phn,addr);
            S.setVisible(true);
            this.setVisible(false);
       // System.out.println("ac no :"+acno);
    }                                        
    }

       private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {                                         
          int acno=0;
          int amount=100;
          String nm="ABC";
          int fine=2;
           if(evt.getSource()==jButton4)
        {
            if(jTextField2.getText().equals("") ||jTextField2.getText().equals("acc no") )
                {
                    JOptionPane.showMessageDialog(null, "Please Enter the Account Number to insert into account.");
                    return;
                }
        else acno= Integer.parseInt(jTextField2.getText());
            Insert I=new Insert(acno,amount,nm,fine);
            I.setVisible(true);
            this.setVisible(false);
       }                                        
    }
    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Home().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JButton jButton4;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    // End of variables declaration                   

}

Search frame

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * Search.java
 *
 * Created on Jul 16, 2011, 5:17:23 PM
 */

package dhanesh;

import javax.swing.JFrame;

/**
 *
 * @author Dhanesh
 */
public class Search extends javax.swing.JFrame {

    /** Creates new form Search */
    public Search() {
        initComponents();
        //jTextField1.setText("hello");
    }
   
   public Search(int acc,int amount, int total, String nm, int phn, String addr) {

        initComponents();
        jTextField1.setText(Integer.toString(acc));

        jTextField8.setText(Integer.toString(amount));

        jTextField2.setText(Integer.toString(total));

        jTextField3.setText(nm);

        jTextField4.setText(Integer.toString(phn));

        jTextField5.setText(addr);

    }

    
   


    /** 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")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        jTextField3 = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        jTextField4 = new javax.swing.JTextField();
        jLabel5 = new javax.swing.JLabel();
        jTextField5 = new javax.swing.JTextField();
        jLabel6 = new javax.swing.JLabel();
        jTextField6 = new javax.swing.JTextField();
        jLabel7 = new javax.swing.JLabel();
        jTextField7 = new javax.swing.JTextField();
        jLabel8 = new javax.swing.JLabel();
        jTextField8 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jButton3 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(dhanesh.DhaneshApp.class).getContext().getResourceMap(Search.class);
        setTitle(resourceMap.getString("Form.title")); // NOI18N
        setName("Form"); // NOI18N
        getContentPane().setLayout(new java.awt.GridBagLayout());

        jPanel1.setBackground(resourceMap.getColor("jPanel1.background")); // NOI18N
        jPanel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        jPanel1.setToolTipText(resourceMap.getString("jPanel1.toolTipText")); // NOI18N
        jPanel1.setName("jPanel1"); // NOI18N

        jLabel1.setText(resourceMap.getString("jLabel1.text")); // NOI18N
        jLabel1.setName("jLabel1"); // NOI18N

        jTextField1.setEditable(false);
        jTextField1.setText(resourceMap.getString("jTextField1.text")); // NOI18N
        jTextField1.setName("jTextField1"); // NOI18N
        jTextField1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField1ActionPerformed(evt);
            }
        });

        jLabel2.setText(resourceMap.getString("jLabel2.text")); // NOI18N
        jLabel2.setName("jLabel2"); // NOI18N

        jTextField2.setText(resourceMap.getString("jTextField2.text")); // NOI18N
        jTextField2.setName("jTextField2"); // NOI18N

        jLabel3.setText(resourceMap.getString("jLabel3.text")); // NOI18N
        jLabel3.setName("jLabel3"); // NOI18N

        jTextField3.setText(resourceMap.getString("jTextField3.text")); // NOI18N
        jTextField3.setName("jTextField3"); // NOI18N

        jLabel4.setText(resourceMap.getString("jLabel4.text")); // NOI18N
        jLabel4.setName("jLabel4"); // NOI18N

        jTextField4.setText(resourceMap.getString("jTextField4.text")); // NOI18N
        jTextField4.setName("jTextField4"); // NOI18N

        jLabel5.setText(resourceMap.getString("jLabel5.text")); // NOI18N
        jLabel5.setName("jLabel5"); // NOI18N

        jTextField5.setText(resourceMap.getString("jTextField5.text")); // NOI18N
        jTextField5.setName("jTextField5"); // NOI18N

        jLabel6.setText(resourceMap.getString("jLabel6.text")); // NOI18N
        jLabel6.setName("jLabel6"); // NOI18N

        jTextField6.setText(resourceMap.getString("jTextField6.text")); // NOI18N
        jTextField6.setName("jTextField6"); // NOI18N

        jLabel7.setText(resourceMap.getString("jLabel7.text")); // NOI18N
        jLabel7.setName("jLabel7"); // NOI18N

        jTextField7.setText(resourceMap.getString("jTextField7.text")); // NOI18N
        jTextField7.setName("jTextField7"); // NOI18N

        jLabel8.setText(resourceMap.getString("jLabel8.text")); // NOI18N
        jLabel8.setName("jLabel8"); // NOI18N

        jTextField8.setText(resourceMap.getString("jTextField8.text")); // NOI18N
        jTextField8.setName("jTextField8"); // NOI18N

        jButton1.setText(resourceMap.getString("jButton1.text")); // NOI18N
        jButton1.setName("jButton1"); // NOI18N
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText(resourceMap.getString("jButton2.text")); // NOI18N
        jButton2.setName("jButton2"); // NOI18N
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jButton3.setText(resourceMap.getString("jButton3.text")); // NOI18N
        jButton3.setName("jButton3"); // NOI18N

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(38, 38, 38)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(jLabel3)
                                .addGap(18, 18, 18)
                                .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 189, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(18, 18, 18)
                                .addComponent(jLabel4)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, 87, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(jLabel5)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, 254, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(jLabel6)
                                .addGap(18, 18, 18)
                                .addComponent(jTextField6, javax.swing.GroupLayout.PREFERRED_SIZE, 82, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jLabel7)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jTextField7, javax.swing.GroupLayout.PREFERRED_SIZE, 36, javax.swing.GroupLayout.PREFERRED_SIZE)))
                        .addGap(118, 118, 118))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jLabel1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jLabel8)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jTextField8, javax.swing.GroupLayout.DEFAULT_SIZE, 41, Short.MAX_VALUE)
                        .addGap(18, 18, 18)
                        .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 93, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(97, 97, 97))))
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(59, 59, 59)
                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 77, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(37, 37, 37)
                .addComponent(jButton2)
                .addGap(35, 35, 35)
                .addComponent(jButton3)
                .addContainerGap(72, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(34, 34, 34)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1)
                    .addComponent(jLabel8)
                    .addComponent(jTextField8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(29, 29, 29)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jLabel3)
                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                        .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addComponent(jLabel4)
                        .addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGap(35, 35, 35)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel5)
                    .addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(32, 32, 32)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel6)
                    .addComponent(jTextField6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel7)
                    .addComponent(jTextField7, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(46, 46, 46)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jButton2)
                    .addComponent(jButton3))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jTextField1.getAccessibleContext().setAccessibleName(resourceMap.getString("jTextField1.AccessibleContext.accessibleName")); // NOI18N

        getContentPane().add(jPanel1, new java.awt.GridBagConstraints());

        pack();
    }// </editor-fold>

    private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {                                            

        if(evt.getSource()==jTextField1)
        {
        String acno="";
        int a=10;
        
        acno=Integer.toString(a);
        jTextField1.setText(acno);
        }
    }                                           

    @SuppressWarnings("empty-statement")
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        int acc=Integer.parseInt(jTextField1.getText());
        int amount=Integer.parseInt(jTextField8.getText());
        String nm =jTextField3.getText();
        int fine=2;
        
        Insert I=new Insert(acc,amount,nm,fine);
            I.setVisible(true);
            this.setVisible(false);
    }

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
       int acc=Integer.parseInt(jTextField1.getText());
       String nm=jTextField3.getText();

       new Withdraw(acc,nm).setVisible(true);
       this.setVisible(false);
    }

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

              // new Search().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JTextField jTextField3;
    private javax.swing.JTextField jTextField4;
    private javax.swing.JTextField jTextField5;
    private javax.swing.JTextField jTextField6;
    private javax.swing.JTextField jTextField7;
    private javax.swing.JTextField jTextField8;
    // End of variables declaration

}

Insert frame

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * Insert.java
 *
 * Created on Jul 16, 2011, 9:58:30 PM
 */

package dhanesh;

/**
 *
 * @author Dhanesh
 */
public class Insert extends javax.swing.JFrame {

    /** Creates new form Insert */
    public Insert() {
        initComponents();
    }

    Insert(int acno, int amount, String nm, int fine) {
        initComponents();

         jTextField1.setText(nm);

        jTextField2.setText(Integer.toString(acno));

        jTextField3.setText(Integer.toString(amount));

        jTextField4.setText(Integer.toString(fine));
    }

    /** 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")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        jTextField3 = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        jTextField4 = new javax.swing.JTextField();
        jLabel5 = new javax.swing.JLabel();
        jTextField5 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(dhanesh.DhaneshApp.class).getContext().getResourceMap(Insert.class);
        setTitle(resourceMap.getString("Form.title")); // NOI18N
        setName("Form"); // NOI18N
        setResizable(false);
        getContentPane().setLayout(new java.awt.GridBagLayout());

        jPanel1.setBackground(resourceMap.getColor("jPanel1.background")); // NOI18N
        jPanel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        jPanel1.setName("jPanel1"); // NOI18N

        jLabel1.setText(resourceMap.getString("jLabel1.text")); // NOI18N
        jLabel1.setName("jLabel1"); // NOI18N

        jTextField1.setEditable(false);
        jTextField1.setText(resourceMap.getString("jTextField1.text")); // NOI18N
        jTextField1.setName("jTextField1"); // NOI18N

        jLabel2.setText(resourceMap.getString("jLabel2.text")); // NOI18N
        jLabel2.setName("jLabel2"); // NOI18N

        jTextField2.setEditable(false);
        jTextField2.setText(resourceMap.getString("jTextField2.text")); // NOI18N
        jTextField2.setName("jTextField2"); // NOI18N

        jLabel3.setText(resourceMap.getString("jLabel3.text")); // NOI18N
        jLabel3.setName("jLabel3"); // NOI18N

        jTextField3.setEditable(false);
        jTextField3.setText(resourceMap.getString("jTextField3.text")); // NOI18N
        jTextField3.setName("jTextField3"); // NOI18N

        jLabel4.setText(resourceMap.getString("jLabel4.text")); // NOI18N
        jLabel4.setName("jLabel4"); // NOI18N

        jTextField4.setEditable(false);
        jTextField4.setText(resourceMap.getString("jTextField4.text")); // NOI18N
        jTextField4.setName("jTextField4"); // NOI18N

        jLabel5.setText(resourceMap.getString("jLabel5.text")); // NOI18N
        jLabel5.setName("jLabel5"); // NOI18N

        jTextField5.setText(resourceMap.getString("jTextField5.text")); // NOI18N
        jTextField5.setName("jTextField5"); // NOI18N

        jButton1.setText(resourceMap.getString("jButton1.text")); // NOI18N
        jButton1.setName("jButton1"); // NOI18N

        jButton2.setText(resourceMap.getString("jButton2.text")); // NOI18N
        jButton2.setName("jButton2"); // NOI18N

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(48, 48, 48)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jLabel1)
                        .addGap(18, 18, 18)
                        .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 181, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 74, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jLabel2)
                                    .addComponent(jLabel4))
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(jTextField4)
                                    .addComponent(jTextField2, javax.swing.GroupLayout.DEFAULT_SIZE, 43, Short.MAX_VALUE))
                                .addGap(18, 18, 18)))
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGap(13, 13, 13)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                                        .addComponent(jLabel5)
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                        .addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE))
                                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                                        .addComponent(jLabel3)
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                        .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 46, javax.swing.GroupLayout.PREFERRED_SIZE)))
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 2, Short.MAX_VALUE))
                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jButton2)
                                .addGap(29, 29, 29)))))
                .addContainerGap(70, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(43, 43, 43)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1))
                .addGap(27, 27, 27)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(jLabel3)
                    .addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel4)
                    .addComponent(jLabel5)
                    .addComponent(jTextField5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 25, Short.MAX_VALUE)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jButton2))
                .addGap(70, 70, 70))
        );

        getContentPane().add(jPanel1, new java.awt.GridBagConstraints());

        pack();
    }// </editor-fold>                        

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

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JTextField jTextField3;
    private javax.swing.JTextField jTextField4;
    private javax.swing.JTextField jTextField5;
    // End of variables declaration                   

}

i've posted code of 3 frames, Home, Search and Insert, I search with acount no given in Home and Search frame opens by making invisible Home frame, then there is Insert button which when clicked insert page opens making Search invisible, when i done with Insert or click cancel button there i need to come on Search frame that is want to make visible Search frame. i can't create object of Search from Insert because values for it i've passed from home first time through the constructor which are not avaialble at Insert.
1 solution is that pass the values of Search to Insert and when its work is done pass it back to Search. But is it ideal solution? i'll be passing value to and fro unneccesarily

mKorbel 274 Veteran Poster · Answer 4 · 2011-07-19T14:09:04+00:00

that isn't answer to your question

don't create lot's of JFrames on Runtime, because with its contents (and if isn't removed) are still presents in memory, to avoiding memory lack or aplication freze or..., you have to create only one JFrame and other Top-Level Containers would be JDialog or JWindow (undecorated by defalut), create only one max two JDialog/JWindow(s) and reuse that by removing all JComponents, or better would be in your case look for CardLaoyut (there you only switch between cards)

Majestics 84 Posting Pro · Answer 5 · 2011-07-19T14:44:51+00:00

Insert I=new Insert(acc,amount,nm,fine,// Pass this as well);
I.setVisible(true);
this.setVisible(false);

In insert class define a jframe and do this

frame  = this; //Reference Transfer , this "this" refer to original calling frame..

and when u close that insert class frame then through "frame" reference u can open back parent frame.

this "this" isnt syntax only to show u how to get work done.

Dhanesh10 0 Newbie Poster · Answer 6 · 2011-07-24T21:02:36+00:00

i resolved my problem by taking separate class through which i am passing values

doubt about "this" object in java

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