/**   @version 1.12 2004-09-15   @author Cay Horstmann*/import java.util.*;import javax.swing.*;/**   A combo box that lets users choose from among static field   values whose names are given in the constructor.*/public class EnumCombo extends JComboBox{    /**      Constructs an EnumCombo.      @param cl a class      @param labels an array of static field names of cl   */   public EnumCombo(Class cl, String[] labels)   {        for (int i = 0; i < labels.length; i++)      {           String label = labels[i];         String name = label.toUpperCase().replace(' ', '_');         int value = 0;         try         {              java.lang.reflect.Field f = cl.getField(name);            value = f.getInt(cl);         }         catch (Exception e)         {              label = "(" + label + ")";         }         table.put(label, value);         addItem(label);      }      setSelectedItem(labels[0]);   }   /**      Returns the value of the field that the user selected.      @return the static field value   */   public int getValue()   {        return table.get(getSelectedItem());   }   private Map<String, Integer> table = new TreeMap<String, Integer>();}