Thread: Swing (Problems)

Originally Posted by LoganC

I am trying to get this program to output where they put their name in a different area on the box, I have bolded the area that I feel is the issue.

??
Can you give us more information? Please assume that we have no idea to start with what you're trying to accomplish with your program or what it might currently be doing wrong. We're dependent on you for all these details.

All I am trying to do is take a string that they are inputting in the GUI[TheirLabel], and just move it to a different part on the GUI. [NameAfterCalc]

The user enters string in a textbox I have assigned, The string is initially where they input it in the GUI. It is supposed to be moved to a label in the bottom of the GUI. I am stuck getting the button to work. I have used the actionPerform and it still is not working. It is almost as if code is not right for me moving the code. I am trying to move what they input to a different part on the GUI

Below is my action listener code. No text is being display at all. Text will be displayed in a jLabel that is already made.

private void NameCheckerActionPerformed(java.awt.event.ActionEvent evt) {                                            
        String TheirName = String.valueOf(TheirAnswer);
        NameAfterCalc.setText(TheirName);
 
    }

TheirAnswer is the JTextField where they input their name.

Originally Posted by LoganC

TheirAnswer is the JTextField where they input their name.

Please see the edit to my post above.

So TheirAnswer is the JTextField itself? then String.valueOf(TheirAnswer) doesn't make much sense since this will return the toString() value of the JTextField which is not very useful for your purposes. Wouldn't you rather get the text held in the JTextField? Calling getText() on it here seems like a better idea, I think.

I added the code you said for debugging, and I got this in the IDE:

Inside of NameCheckerActionPerformed. String TheirName is: javax.swing.JTextField[,28,38,151x28,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.synth.SynthBorder@8497904,flags=288,maximumSize=,minimumSize=,preferredSize=,caretColor=,disabledTextColor=DerivedColor(color=142,143,145 parent=nimbusDisabledText offsets=0.0,0.0,0.0,0 pColor=142,143,145,editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=DerivedColor(color=255,255,255 parent=nimbusSelectedText offsets=0.0,0.0,0.0,0 pColor=255,255,255,selectionColor=DerivedColor(color=57,105,138 parent=nimbusSelectionBackground offsets=0.0,0.0,0.0,0 pColor=57,105,138,columns=0,columnWidth=0,command=,horizontalAlignment=LEADING]

Yep, as I thought, that's the toString() returned from your JTextField variable which is certainly not what you want. Get the JTextField's text instead by calling getText() on it.

Also, did your JLabel get a red border after the button press?

TheirAnswer is the JTextField, correct. We didn't learn much about get text, is this the correct application? I am getting an error.

String TheirName = String.getText(TheirAnswer);
        NameAfterCalc.setText(TheirName);

You call the method on the JTextField itself. To learn how to use JTextFields, please check the tutorials, Using JTextFields and the JTextField API

Hmm all areas are gone, but it's still not printing out for some reason.

private void NameCheckerActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_NameCheckerActionPerformed
        String TheirName = TheirAnswer.getText();
        NameAfterCalc.setText(TheirName);

If you use [code=java] before the code and [/code] at the end of your code, instead of [code] at the start and [/code] at the end, look how pretty.
Plus you can decorate with comments and all those pretty colors make it so easy to see.

Originally Posted by LoganC

I am trying to get this program to output where they put their name in a different area on the box, I have bolded the area that I feel is the issue.

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
 
/**
 *
 * @author Logan
 */
public class NameGUI extends javax.swing.JFrame {
 
    /**
     * Creates new form NameGUI
     */
    public NameGUI() {
        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">//GEN-BEGIN:initComponents
    private void initComponents() {
 
        NameLabel = new javax.swing.JLabel();
        TheirAnswer = new javax.swing.JTextField();
        NameChecker = new javax.swing.JButton();
        ResultLabel = new javax.swing.JLabel();
        NameAfterCalc = new javax.swing.JLabel();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
        NameLabel.setText("What Is Your Name?");
 
        TheirAnswer.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                TheirAnswerActionPerformed(evt);
            }
        });
 
        NameChecker.setText("Check My Name!");
        NameChecker.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                NameCheckerActionPerformed(evt);
            }
        });
 
        ResultLabel.setText("Name Result:");
 
        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(28, 28, 28)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(NameChecker)
                            .addComponent(TheirAnswer, javax.swing.GroupLayout.PREFERRED_SIZE, 151, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(NameLabel)))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(ResultLabel)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(NameAfterCalc, javax.swing.GroupLayout.PREFERRED_SIZE, 0, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(NameLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(TheirAnswer, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(NameChecker)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 29, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(ResultLabel)
                    .addComponent(NameAfterCalc, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(27, 27, 27))
        );
 
        pack();
    }// </editor-fold>//GEN-END:initComponents
 
    private void TheirAnswerActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_TheirAnswerActionPerformed
        // TODO add your handling code here:
    }//GEN-LAST:event_TheirAnswerActionPerformed
 
    private void NameCheckerActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_NameCheckerActionPerformed
        String TheirName = String.valueOf(TheirAnswer);
/**000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000*/
        [B]NameAfterCalc.setText(TheirName);[/B]
/**000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000*/
 
    }//GEN-LAST:event_NameCheckerActionPerformed
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see [url=http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html]How to Set the Look and Feel (The Java™ Tutorials > Creating a GUI With JFC/Swing > Modifying the Look and Feel)[/url] 
         */
        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(NameGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(NameGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(NameGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(NameGUI.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 NameGUI().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel NameAfterCalc;
    private javax.swing.JButton NameChecker;
    private javax.swing.JLabel NameLabel;
    private javax.swing.JLabel ResultLabel;
    private javax.swing.JTextField TheirAnswer;
    // End of variables declaration//GEN-END:variables
}