Event handler for the Choose Color button

Listing 1 defines and registers an ActionListener on the Choose Color button.

Listing 1. Event handler for the Choose Color button. 
    chooseButton.addActionListener(
      new ActionListener(){
        public void actionPerformed(ActionEvent e){
          Color selColor = JColorChooser.showDialog(
                    chooseButton,"Choose color",new Color(
                       redInt,greenInt,blueInt));
          if(selColor != null){
            //Don't change the color if the user cancels
            // out.
            redField.setText("" + selColor.getRed());
            greenField.setText(
                                "" + selColor.getGreen());
            blueField.setText("" + selColor.getBlue());
          }//end if

        }//end action performed
      }//end new ActionListener
    );//end addActionListener
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