how to set action event

[Roldan Baldo]

import java.awt.BorderLayout;
import java.awt.image.BufferedImage;
/**
*
* @author BHADZ
*/
public class imageFinalize extends javax.swing.JDialog {
BufferedImage origImage;
BufferedImage tempImageSize;
BufferedImage imageResizable;
BufferedImage cropImage;
/** Creates new form imageFinalize */
public imageFinalize(java.awt.Frame parent, boolean modal, BufferedImage origImage) {
super(parent, modal);
initComponents();
this.origImage = origImage;
tempImageSize = null;
cropImage = null;
imageResizable = null;
layImage(origImage);
}
private void layImage(BufferedImage initImage){
javax.swing.ImageIcon imageBack = new javax.swing.ImageIcon(initImage);
javax.swing.JLabel background = new javax.swing.JLabel(imageBack);
background.setBounds(0, 0, imageBack.getIconWidth(), imageBack.getIconHeight());
jPanel2.add(background,BorderLayout.CENTER);
}
/** 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();
jPanel2 = new javax.swing.JPanel();
jPanel3 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
jPanel2.setBorder(javax.swing.BorderFactory.createEtchedBorder());
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 405, Short.MAX_VALUE)
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 350, Short.MAX_VALUE)
);
jPanel3.setBorder(javax.swing.BorderFactory.createTitledBorder("Resize"));
jButton1.setText("UP");
jButton2.setText("DOWN");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
jPanel3.setLayout(jPanel3Layout);
jPanel3Layout.setHorizontalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel3Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jButton2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 80, Short.MAX_VALUE)
.addComponent(jButton1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 80, Short.MAX_VALUE))
.addContainerGap())
);
jPanel3Layout.setVerticalGroup(
jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel3Layout.createSequentialGroup()
.addComponent(jButton1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton2)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
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()
.addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(73, Short.MAX_VALUE))
);
getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER);
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
setBounds((screenSize.width-563)/2, (screenSize.height-465)/2, 563, 465);
}// </editor-fold>
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
tempImageSize = origImage;
double w = tempImageSize.getWidth();
double h = tempImageSize.getHeight();
//double imageSize[] = {1,.9,.8,.7,.6,.5,.4,.3,.2};
double tempImageRes = .9;
imageResizable = Methods.createResizedCopy(tempImageSize, w*tempImageRes, h*tempImageRes, rootPaneCheckingEnabled);
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
// End of variables declaration
}

the imageResizable variable is changing its values but the effect is not changed, the picture is the same,.. i get the value of imageResizable after it resizes and it return
a smaller image. but when i click the button it doesnt take its effect.

[Rob Spoor]

I never see you use it. If I do a search on your code I find 3 occurrences: the declaration, the initialization to null and the setting in the action performed method.

[Roldan Baldo]

im sorry i forgot to write the last 2 lines there. and it works now. but i have a little problem about the picture

public static BufferedImage createResizedCopy(Image originalImage,
double scaledWidth,
double scaledHeight,
boolean preserveAlpha) {
int imageType = preserveAlpha ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB;
BufferedImage scaledBI = new BufferedImage((int)scaledWidth, (int)scaledHeight, imageType);
Graphics2D g = scaledBI.createGraphics();
if (preserveAlpha) {
g.setComposite(AlphaComposite.Src);
}
g.drawImage(originalImage, 0, 0, (int)scaledWidth, (int)scaledHeight, null);
g.dispose();
return scaledBI;
}

when i performed this method im going to resize the picture into smaller, it seems that the picture is more pixeleted, unlike the orig one. the pic became ugly, did i miss something about manipulating images using BufferedImage?