background color of a jframe

[doug smith]

Greetings All,
I'm having some problems getting the background color to change.


I have a guiClass that extends JFrame and implements ActionListener (once "implements" was spelled correctly). my main program basically just makes a guiClass object.


i have been trying to use setBackground(Color.red); but it is not working. i tried this.setBackground(Color.red) but it didn't work.

I have tried setting the background color in the constructor as well as in a method. Is it something do with JFrame? Am I using the wrong method? any hints as to how I can find out?

this is the last program for a Java class I'm taking at school. I didn't post all my code, since its for a class. I've been able to figure out the rest of the program on my own.

[Rob Spoor]

Try setting the background of the frame's content pane instead.

[Nitin Surana]

http://www.dreamincode.net/forums/topic/59010-cant-set-jframe-background-color/

[Ranganathan Kaliyur Mannar]

This is interesting...so, other methods do not delegate like add() was changed...

[Randall Twede]

this is kind of different and may help or not

/**
 *
 * Randall Twede
 */
import java.awt.*;
import javax.swing.*;

public class StandardColorSelector extends JPanel
{
    private String names[] = {"Black", "Blue", "Cyan", "Dark Gray", "Gray", "Green", "Light Gray", "Magenta", "Orange", "Pink", "Red", "White", "Yellow"};
    private Color colors[] = {Color.black, Color.blue, Color.cyan,
                   Color.darkGray, Color.gray, Color.green, Color.lightGray, Color.magenta, Color.orange, Color.pink, Color.red, Color.white, Color.yellow};
    private JComboBox selector = new JComboBox(names);
    
    /** Creates a new instance of StandardColorSelector */
    public StandardColorSelector()
    {
        selector.setEditable(false);
        selector.setSelectedIndex(0);	// Default selection is black
        add(selector);
    }
    
    public Color getSelectedColor()
    {
        return colors[selector.getSelectedIndex()];
    }

    // Requires an integer parameter between 0 and 12 inclusive
    public void setDefaultSelection(int selection)
    {
        selector.setSelectedIndex(selection);
    }
    
}

        public Color getBack()
 private StandardColorSelector backcolor = new StandardColorSelector();

        public Color getBack()
    {
        return backcolor.getSelectedColor();
    }