Changing images by clicking arrow buttons. help?

[ashton]

Hi guys! I'll just go straight to the point.

I have a program that displays an image. what i want to do is, as i click the right button, the image will change to a different one. And if i click the left button it will display the previous image.

I was playing with if-else's, do-whiles, but I still cant get through my problem..

Does anyone knows how to write a code that can enable you to browse images with the help of left and right buttons?? Please, I need you help.

Here's my code anyways: (just copy it all and run it)

[FONT="Courier New"]/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * CounterFrame.java
 *
 * Created on Feb 6, 2009, 12:53:29 PM
 */

package mycounter;

//some imported packages are here..
import java.io.*;
import javax.swing.UIManager.*;
import java.awt.event.*;
import java.awt.*;
import java.lang.*;
import java.lang.String;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
/**
 *
 * @author Kent
 */
public class CounterFrame extends javax.swing.JFrame {

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


        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() {

        jDialog1 = new javax.swing.JDialog();
        jFileChooser1 = new javax.swing.JFileChooser();
        jLayeredPane1 = new javax.swing.JLayeredPane();
        jLabel2 = new javax.swing.JLabel();
        rightButton = new javax.swing.JButton();
        leftButton = new javax.swing.JButton();
        jLabel4 = new javax.swing.JLabel();
        progressBar = new javax.swing.JProgressBar();
        previewImage = new javax.swing.JLabel();
        buyButton = new javax.swing.JButton();
        stockLabel = new javax.swing.JLabel();
        jComboBox1 = new javax.swing.JComboBox();
        nameField = new javax.swing.JTextField();
        contactField = new javax.swing.JTextField();
        addressField = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenuItem2 = new javax.swing.JMenuItem();
        jMenu3 = new javax.swing.JMenu();
        jMenuItem4 = new javax.swing.JMenuItem();
        jMenu2 = new javax.swing.JMenu();
        jMenuItem3 = new javax.swing.JMenuItem();

        javax.swing.GroupLayout jDialog1Layout = new javax.swing.GroupLayout(jDialog1.getContentPane());
        jDialog1.getContentPane().setLayout(jDialog1Layout);
        jDialog1Layout.setHorizontalGroup(
            jDialog1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE)
            .addGroup(jDialog1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(jDialog1Layout.createSequentialGroup()
                    .addGap(0, 0, Short.MAX_VALUE)
                    .addComponent(jFileChooser1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 0, Short.MAX_VALUE)))
        );
        jDialog1Layout.setVerticalGroup(
            jDialog1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE)
            .addGroup(jDialog1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(jDialog1Layout.createSequentialGroup()
                    .addGap(0, 0, Short.MAX_VALUE)
                    .addComponent(jFileChooser1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 0, Short.MAX_VALUE)))
        );

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        setResizable(false);

        jLabel2.setText("                    .");
        jLabel2.setBounds(10, 520, 320, 20);
        jLayeredPane1.add(jLabel2, javax.swing.JLayeredPane.DEFAULT_LAYER);

        rightButton.setText(">");
        rightButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                rightButtonActionPerformed(evt);
            }
        });
        rightButton.setBounds(620, 510, 41, 23);
        jLayeredPane1.add(rightButton, javax.swing.JLayeredPane.DEFAULT_LAYER);

        leftButton.setText("<");
        leftButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                leftButtonActionPerformed(evt);
            }
        });
        leftButton.setBounds(500, 510, 41, 23);
        jLayeredPane1.add(leftButton, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jLabel4.setFont(new java.awt.Font("Tahoma", 1, 12));
        jLabel4.setForeground(new java.awt.Color(209, 172, 47));
        jLabel4.setText("Browse");
        jLabel4.setBounds(560, 520, 50, 15);
        jLayeredPane1.add(jLabel4, javax.swing.JLayeredPane.DEFAULT_LAYER);
        progressBar.setBounds(0, 540, 730, 14);
        jLayeredPane1.add(progressBar, javax.swing.JLayeredPane.DEFAULT_LAYER);

        previewImage.setForeground(new java.awt.Color(204, 204, 204));
        previewImage.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mycounter/newFolder/newFolder/Sofa5.jpg"))); // NOI18N
        previewImage.setText("Preview..");
        previewImage.setCursor(new java.awt.Cursor(java.awt.Cursor.CROSSHAIR_CURSOR));
        previewImage.setMaximumSize(new java.awt.Dimension(120, 120));
        previewImage.setMinimumSize(new java.awt.Dimension(100, 100));
        previewImage.setPreferredSize(new java.awt.Dimension(100, 100));
        previewImage.setBounds(490, 340, 190, 160);
        jLayeredPane1.add(previewImage, javax.swing.JLayeredPane.DEFAULT_LAYER);

        buyButton.setBackground(new java.awt.Color(0, 0, 0));
        buyButton.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mycounter/Buy.jpg"))); // NOI18N
        buyButton.setCursor(new java.awt.Cursor(java.awt.Cursor.HAND_CURSOR));
        buyButton.setSelected(true);
        buyButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                buyButtonActionPerformed(evt);
            }
        });
        buyButton.setBounds(570, 280, 110, 40);
        jLayeredPane1.add(buyButton, javax.swing.JLayeredPane.DEFAULT_LAYER);

        stockLabel.setFont(new java.awt.Font("Tahoma", 1, 14));
        stockLabel.setForeground(new java.awt.Color(255, 204, 51));
        stockLabel.setText("Stocks Left:    ..");
        stockLabel.setBounds(560, 260, 150, 17);
        jLayeredPane1.add(stockLabel, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Chairs", "Sofa", "Tables", "Beds", "Desks", "Counters", "Cabinets", "Shelves", "Accessories" }));
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });
        jComboBox1.setBounds(400, 230, 310, 20);
        jLayeredPane1.add(jComboBox1, javax.swing.JLayeredPane.DEFAULT_LAYER);

        nameField.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                nameFieldActionPerformed(evt);
            }
        });
        nameField.setBounds(200, 160, 310, 30);
        jLayeredPane1.add(nameField, javax.swing.JLayeredPane.DEFAULT_LAYER);
        contactField.setBounds(190, 310, 170, 30);
        jLayeredPane1.add(contactField, javax.swing.JLayeredPane.DEFAULT_LAYER);
        addressField.setBounds(130, 240, 200, 30);
        jLayeredPane1.add(addressField, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mycounter/apartament1.jpg"))); // NOI18N
        jLabel1.setBounds(0, 0, 730, 550);
        jLayeredPane1.add(jLabel1, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jMenu1.setText("File");

        jMenuItem1.setText("About");
        jMenu1.add(jMenuItem1);

        jMenuItem2.setText("Exit");
        jMenu1.add(jMenuItem2);

        jMenuBar1.add(jMenu1);

        jMenu3.setText("Check Order Confirmation");

        jMenuItem4.setText("Check Order Form");
        jMenu3.add(jMenuItem4);

        jMenuBar1.add(jMenu3);

        jMenu2.setText("Help");

        jMenuItem3.setText("How_to_Use");
        jMenu2.add(jMenuItem3);

        jMenuBar1.add(jMenu2);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLayeredPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 731, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLayeredPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 550, javax.swing.GroupLayout.PREFERRED_SIZE)
        );

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

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

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

    private void leftButtonActionPerformed(java.awt.event.ActionEvent evt) {                                           
        // TODO add your handling code here:
    }                                          
[COLOR="DarkRed"]     //this is where I can't get my imaged-Label to change..[/COLOR]
    private void rightButtonActionPerformed(java.awt.event.ActionEvent evt) {                                            
        int i = 1;
        i++;//incrementing i

        if(i == 1){
            previewImage.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mycounter/Chair2.jpg")));
            i = 2;
        }else if(i == 2 ){
            previewImage.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mycounter/Chair3.jpg")));
            i = 3;
        }else if(i == 3){
            previewImage.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mycounter/Chair4.jpg")));
            i = 4;
        }else if(i == 4){
            previewImage.setIcon(new javax.swing.ImageIcon(getClass().getResource("mycounter/Chair5.jpg")));
            i = 5;
        }
    }                                           

    private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        String obj = (String) evt.getSource();
        if(obj=="Sofa"){
            previewImage.setIcon(new javax.swing.ImageIcon(getClass().getResource("/mycounter/Chair4.jpg")));
        }
    }                                          

    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) throws ClassNotFoundException, InstantiationException, 
                                                    IllegalAccessException, UnsupportedLookAndFeelException {

        //This is the window's visual setting..
        UIManager.put("control", new Color(143,154,166));
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new CounterFrame().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JTextField addressField;
    private javax.swing.JButton buyButton;
    private javax.swing.JTextField contactField;
    private javax.swing.JComboBox jComboBox1;
    private javax.swing.JDialog jDialog1;
    private javax.swing.JFileChooser jFileChooser1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLayeredPane jLayeredPane1;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenu jMenu3;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JMenuItem jMenuItem2;
    private javax.swing.JMenuItem jMenuItem3;
    private javax.swing.JMenuItem jMenuItem4;
    private javax.swing.JButton leftButton;
    private javax.swing.JTextField nameField;
    private javax.swing.JLabel previewImage;
    private javax.swing.JProgressBar progressBar;
    private javax.swing.JButton rightButton;
    private javax.swing.JLabel stockLabel;
    // End of variables declaration

}
[/FONT]

[mtyoung]

it is because you initialize int i and increment it to 2 in rightButtonActionPreformed method

it always shows the second pic
you can add a global variable to store which pic should shown

[ashton]

what do you suppose I do?

[Fubarable]

Again, as was already stated, don't declare and initialize "i" from within the actionperformed method. Declare it and initialize it to 0 in the class.