javaswinguser-interfacewindow
i get this window with out any of content why?
i am looking into the code and i cant figure out what is the problem with this code why the window doesnt show up the content, please help anyone thanks in advance!
i built with netbeans very simple swing app with window builder , and this time it doesnt show the content at all the window is not set right or this is another problem i am busting my mind how to solve this
public class AddCoupon extends javax.swing.JFrame {
private javax.swing.JTextField amount;
private javax.swing.JButton cancel;
private javax.swing.JLabel compName;
private javax.swing.JLabel compName1;
private javax.swing.JLabel compName2;
private javax.swing.JLabel compPass;
private javax.swing.JLabel compPass1;
private javax.swing.JLabel compPass2;
private javax.swing.JLabel compPass3;
private javax.swing.JLabel compPass6;
private javax.swing.JList<String> couponTypes;
private javax.swing.JTextField endDate;
private javax.swing.JTextField imgPath;
private javax.swing.JLabel jLabel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTextArea massage;
private javax.swing.JButton okBtn;
private javax.swing.JTextField price;
private javax.swing.JTextField startDate;
private javax.swing.JTextField title;
public AddCoupon() {
super("Add Coupon");
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(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
setLocationRelativeTo(null);
setVisible(true);
}
/**
* 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() {
compName = new javax.swing.JLabel();
compPass = new javax.swing.JLabel();
title = new javax.swing.JTextField();
startDate = new javax.swing.JTextField();
okBtn = new javax.swing.JButton();
cancel = new javax.swing.JButton();
jLabel1 = new javax.swing.JLabel();
endDate = new javax.swing.JTextField();
compPass1 = new javax.swing.JLabel();
amount = new javax.swing.JTextField();
compPass2 = new javax.swing.JLabel();
compName1 = new javax.swing.JLabel();
compPass3 = new javax.swing.JLabel();
price = new javax.swing.JTextField();
compName2 = new javax.swing.JLabel();
jScrollPane1 = new javax.swing.JScrollPane();
couponTypes = new javax.swing.JList<>();
jScrollPane2 = new javax.swing.JScrollPane();
massage = new javax.swing.JTextArea();
compPass6 = new javax.swing.JLabel();
imgPath = new javax.swing.JTextField();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setAlwaysOnTop(true);
setLocation(new java.awt.Point(0, 0));
compName.setText("Coupon title :");
compPass.setText("Start Date :");
startDate.setText("MM/dd/yyyy");
okBtn.setText("Ok");
okBtn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
okBtnActionPerformed(evt);
}
});
cancel.setText("Cancel");
cancel.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cancelActionPerformed(evt);
}
});
jLabel1.setText("Add New Coupon");
endDate.setText("MM/dd/yyyy");
compPass1.setText("End Date :");
compPass2.setText("Massage:");
compName1.setText("Amount :");
compPass3.setText("Type");
compName2.setText("Price :");
couponTypes.setModel(new javax.swing.AbstractListModel<String>() {
String[] strings = { "blah","blah" };
public int getSize() { return strings.length; }
public String getElementAt(int i) { return strings[i]; }
});
jScrollPane1.setViewportView(couponTypes);
massage.setColumns(20);
massage.setRows(5);
jScrollPane2.setViewportView(massage);
compPass6.setText("img path :");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(86, 86, 86)
.addComponent(jLabel1))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(30, 30, 30)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(compName)
.addComponent(compPass)
.addComponent(compPass1))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(endDate, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(startDate, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(title, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(compName1)
.addComponent(compPass3)
.addComponent(compPass2))
.addGap(29, 29, 29)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(amount, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)))))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(compName2, javax.swing.GroupLayout.PREFERRED_SIZE, 57, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(compPass6, javax.swing.GroupLayout.PREFERRED_SIZE, 56, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(price, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(imgPath, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(2, 2, 2))))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(layout.createSequentialGroup()
.addGap(86, 86, 86)
.addComponent(okBtn)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(cancel)
.addGap(40, 40, 40))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(17, 17, 17)
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(compName)
.addComponent(title, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(compPass)
.addComponent(startDate, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(compPass1)
.addComponent(endDate, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(compName1)
.addComponent(amount, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(20, 20, 20)
.addComponent(compPass3))
.addGroup(layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(27, 27, 27)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(compPass2)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 72, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(price, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(compName2))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(compPass6)
.addComponent(imgPath, 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)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(okBtn)
.addComponent(cancel))
.addContainerGap())
);
pack();
}// </editor-fold>
private void okBtnActionPerformed(java.awt.event.ActionEvent evt) {
}
private void cancelActionPerformed(java.awt.event.ActionEvent evt) {
dispose();
}
}Solution
You need to call ìnitComponents() within your constructor
public AddCoupon() {
super("Add Coupon");
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(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(AddCoupon.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
initComponents(); <---- HERE
setLocationRelativeTo(null);
setVisible(true);
}
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