Preview pane simply displays the currently selected color. : JColorChooser « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JColorChooser

class MyPreviewPane extends JLabel{
  Color curColor;
  public MyPreviewPane(JColorChooser chooser) {
    curColor = chooser.getColor();
    ColorSelectionModel model = chooser.getSelectionModel();
    model.addChangeListener(new ChangeListener() {
      public void stateChanged(ChangeEvent evt) {
        ColorSelectionModel model = (ColorSelectionModel) evt.getSource();
        curColor = model.getSelectedColor();
      }
    });
    setPreferredSize(new Dimension(50, 50));
  }
  public void paint(Graphics g) {
    g.setColor(curColor);
    g.fillRect(0, 0, getWidth() - 1, getHeight() - 1);
  }
}

14.76.JColorChooser
	14.76.1.	Display Color chooser dialog
	14.76.2.	Use a Color Chooser
	14.76.3.	Creating a JColorChooser Dialog
	14.76.4.	Getting and Setting the Selected Color in a JColorChooser Dialog
	14.76.5.	Preview pane simply displays the currently selected color.
	14.76.6.	Listening to Color Selection Changes
	14.76.7.	Creating and Showing a JColorChooser Pop-Up Window
	14.76.8.	Customizing Action Listeners on JColorChooser Buttons
	14.76.9.	Linking JColorChooser with component's color
	14.76.10.	Dragging-and-Dropping Colors Across JColorChooser Components
	14.76.11.	JColorChooser with custom preview panel
	14.76.12.	Changing the Color Chooser Panels
	14.76.13.	Setting the Order of the Color Chooser Panel Tabs in a JColorChooser Dialog
	14.76.14.	Retrieving the Color Chooser Panels in a JColorChooser Dialog
	14.76.15.	Removing a Color Chooser Panel from a JColorChooser Dialog
	14.76.16.	Removing the Preview Panel from a JColorChooser Dialog
	14.76.17.	Customizing the Preview Panel of a JColorChooser Dialog
	14.76.18.	Listening for OK and Cancel Events in a JColorChooser Dialog
	14.76.19.	Adding a Custom Color Chooser Panel to a JColorChooser Dialog
	14.76.20.	Customizing a JColorChooser Look and Feel
	14.76.21.	Choose foreground or background color