Thread: Problem with running a GUI form

Hi,

I'm new to java programming and am having a problem with running a GUI Form. I'm using NetBeans and it is showing an error at this part of the coding:

private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JTextField jTextField1;

I have copied the coding from a book and it is supposed to allow the user to enter some text (in a textfield) and then push the button, which results the text that was entered appear (as a label) below the button after the button is pressed. How do I make it work? Please can you help. Here's the coding:

package test1;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.awt.event.ActionListener.*;
 
 
public class PushMe extends javax.swing.JFrame implements ActionListener {
 
    JTextField jTextField1 = new JTextField(15);
    JButton jButton1 = new JButton ("please push me");
    JLabel jLabel1 = new JLabel ("Enter some text and push the button", JLabel.CENTER);
 
 
    /**
     * Creates new form PushMe
     */
    public PushMe() {
        initComponents();
 
       setTitle("Push Me");
       setLayout(new FlowLayout());
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       setSize(220,120);
       setLocation(400,300);
       add(jTextField1);
       add(jLabel1);
       jButton1.addActionListener(this);
       setVisible(true);
 
 
 
    }
 
 
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {
 
        jButton1 = new javax.swing.JButton();
        jTextField1 = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
                jButton1ActionPerformed1(evt);
            }
        });
 
        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.TRAILING)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 270, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(41, 41, 41)
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 287, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(72, Short.MAX_VALUE))
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGap(0, 0, Short.MAX_VALUE)
                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 162, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(121, 121, 121))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(86, 86, 86)
                .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 27, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(34, 34, 34)
                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 28, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(30, 30, 30)
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(62, Short.MAX_VALUE))
        );
 
        pack();
    }// </editor-fold>                        
 
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
 
 
        // TODO add your handling code here:
    }                                        
 
    private void jButton1ActionPerformed1(java.awt.event.ActionEvent evt) {                                          
       String myText;
       myText = jTextField1.getText();
       jLabel1.setText("You entered: " + myText);
 
    }                                         
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
 
        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(PushMe.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(PushMe.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(PushMe.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(PushMe.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
 
        /*
         * Create and display the form
         */
        java.awt.EventQueue.invokeLater(new Runnable() {
 
            public void run() {
                new PushMe().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration                   
 
    @Override
    public void actionPerformed(ActionEvent ae) {
        throw new UnsupportedOperationException("Not supported yet.");
    }
}