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Thread: JColorChooser won't change text color of JLabel

  1. #1
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    Cool JColorChooser won't change text color of JLabel

    I'm trying to create a JColorChooser dialog box with a JLabel above it, so that the JLabel text color will change to the color chosen with JColorChooser by the user. Here's what I have so far, but it is not compiling for me. I am getting the following error:

    JColorChooserExample.java:22: cannot find symbol
    symbol : method addChangeListener(JColorChooserExample.ListenerCla ss)
    location: class javax.swing.JColorChooser
    colorChooser.addChangeListener(listener);
    ^
    1 error

    import javax.swing.*;
    import java.awt.*;
    import javax.swing.event.*;
     
    public class JColorChooserExample extends JFrame
    {		
    	private JColorChooser colorChooser;						           // instance variables		  
    	private JLabel banner;
     
    	public JColorChooserExample()											  // constructor
    	{
    		add(banner = new JLabel("Welcome to the Tutorial Zone!", JLabel.CENTER), BorderLayout.NORTH);
          banner.setForeground(Color.BLACK);
    		add(colorChooser = new JColorChooser(banner.getForeground()), BorderLayout.SOUTH);
     
    		ListenerClass listener = new ListenerClass();
    		colorChooser.addChangeListener(listener);
    	}
     
    	public static void main(String[] args)
    	{		
    		JColorChooserExample frame = new JColorChooserExample();   // new frame object 
    		frame.setTitle("JColorChooser Example");                   // set frame title
    		frame.pack();															  // sizes the frame so components fit frame  
    		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);      // ends program on frame closing
    		frame.setLocationRelativeTo(null);								  // centre frame
    		frame.setVisible(true);                                    // make frame visible
    	}
     
    	private class ListenerClass implements ChangeListener
    	{	
    		public void stateChanged(ChangeEvent e) 
    		{
        		Color newColor = colorChooser.getColor();
        		banner.setForeground(newColor);
    		}
    	}
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: JColorChooser won't change text color of JLabel

    Where is the addChangeListener() method defined?
    If you don't understand my answer, don't ignore it, ask a question.

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