Java JSpinner extend to create custom spinner

import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.lang.reflect.Field;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.SpinnerListModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

class ColorSpinner extends JSpinner {
   public ColorSpinner(String[] colorNames) {
     super();//from   w  w  w  .  j  av  a  2s .  c o m
     setModel(new SpinnerListModel(colorNames));
     setEditor(new Editor(this));
   }

   public class Editor extends JPanel implements ChangeListener {
     int preferredWidth = 30;
     int preferredHeight = 16;

     Editor(JSpinner spinner) {
       spinner.addChangeListener(this);
       setPreferredSize(new Dimension(preferredWidth, preferredHeight));
       setColor((String) spinner.getValue());
     }
     public void stateChanged(ChangeEvent evt) {
       JSpinner spinner = (JSpinner) evt.getSource();

       String value = (String) spinner.getValue();

       setColor(value);
     }

     public void setColor(String colorName) {
       try {
         Field field = Class.forName("java.awt.Color").getField(colorName);
         Color color = (Color) field.get(null);
         setBackground(color);
       } catch (Exception e) {
       }
     }
   }
 }
public class Main extends JFrame {
   public Main() {
      super("java2s.com");

      setDefaultCloseOperation(EXIT_ON_CLOSE);
      setLayout(new FlowLayout());

      ColorSpinner spinner = new ColorSpinner(new String[]{"red","blue","black","yellow"}) ;
      
      getContentPane().add(spinner);
   }

   public static void main(String[] args) {
      Main frame = new Main();
      frame.pack();
      frame.setVisible(true);
   }
}