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Thread: Cannot align JTextField in JPanel

  1. #1
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    Default Cannot align JTextField in JPanel

    I'm writing a GUI for a DVD player. I'm attempting to align the JTextField to the center of the JPanel, but I am getting this error:

    DVDPlayer.java:23: cannot find symbol
    symbol : method setVerticalAlignment(int)
    location: class javax.swing.JTextField
    jtfDetails.setVerticalAlignment(JTextField.CENTER) ;
    ^
    1 error

     import javax.swing.*;
    import java.awt.*;
    import javax.swing.border.*;
     
    public class DVDPlayer extends JFrame
    {
    	private JPanel p1, p2;
    	private JButton jbtDVD, jbtPlay, jbtRewind, jbtFForward, jbtStop;
    	private JTextField jtfDetails;
     
    	public DVDPlayer()
    	{
    		add(jbtDVD = new JButton("DVD to be placed here"));
    		add(jbtDVD, BorderLayout.NORTH);
     
    		p1 = new JPanel();
    		p1.add(jtfDetails = new JTextField("DVD details to be displayed here"));
    		jtfDetails.setVerticalAlignment(JTextField.CENTER);
     
    		add(p1, BorderLayout.WEST);
     
    		p2 = new JPanel();
    		p2.setLayout(new FlowLayout());
    		p2.setBorder(new LineBorder(Color.BLACK, 2));
    		p2.add(jbtPlay = new JButton("Play"));
    		p2.add(jbtRewind = new JButton("<<"));
    		p2.add(jbtFForward = new JButton(">>"));
    		p2.add(jbtStop = new JButton("Stop"));
     
    		add(p2, BorderLayout.EAST);
    	}
     
    	public static void main(String[] args)
    	{
          DVDPlayer frame = new DVDPlayer();
          frame.setTitle("The Front View of a DVD Player");
          frame.pack();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setLocationRelativeTo(null);
          frame.setVisible(true);
       }
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Cannot align JTextField in JPanel

    The compiler can not find a definition for the symbol above the ^. What is the symbol that the compiler can't find? Posting the error message lost the position of the ^.
    Is that symbol defined? Did you spell it correctly?
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: Cannot align JTextField in JPanel

    The symbol above the ^ is the . between 'jtfDetails' and 'setVerticalAlignment'. Yes it is spelt correctly.

  4. #4
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    Default Re: Cannot align JTextField in JPanel

    What class is that method defined in? The compiler can't find it in the JTextField class.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Cannot align JTextField in JPanel

    It's defined in the JLabel class. setVerticalAlignment isn't defined in the JTextField class, so does that mean I must use a different method?

  6. #6
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    Default Re: Cannot align JTextField in JPanel

    must use a different method?
    You must use a method that belongs to the class of the variable.
    If you don't understand my answer, don't ignore it, ask a question.

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