/**   @version 1.0 2004-05-24   @author Cay Horstmann*/import java.util.*;public class EnumTest{     public static void main(String[] args)   {        Scanner in = new Scanner(System.in);      System.out.print("Enter a size: (SMALL, MEDIUM, LARGE, EXTRA_LARGE) ");      String input = in.next().toUpperCase();      Size size = Enum.valueOf(Size.class, input);      System.out.println("size=" + size);      System.out.println("abbreviation=" + size.getAbbreviation());      if (size == Size.EXTRA_LARGE)         System.out.println("Good job--you paid attention to the _.");         }}enum Size{   SMALL("S"), MEDIUM("M"), LARGE("L"), EXTRA_LARGE("XL");   private Size(String abbreviation) { this.abbreviation = abbreviation; }   public String getAbbreviation() { return abbreviation; }   private String abbreviation;}