icecream.java

来自「Java 程序设计教程（第五版）EXAMPLESchap03源码」· Java 代码 · 共 40 行

//********************************************************************
//  IceCream.java       Author: Lewis/Loftus
//
//  Demonstrates the use of enumerated types.
//********************************************************************


public class IceCream
{
   enum Flavor {vanilla, chocolate, strawberry, fudgeRipple, coffee,
                rockyRoad, mintChocolateChip, cookieDough}

   //-----------------------------------------------------------------
   //  Creates and uses variables of the Flavor type.
   //-----------------------------------------------------------------
   public static void main (String[] args)
   {
      Flavor cone1, cone2, cone3;

      cone1 = Flavor.rockyRoad;
      cone2 = Flavor.chocolate;

      System.out.println ("cone1 value: " + cone1);
      System.out.println ("cone1 ordinal: " + cone1.ordinal());
      System.out.println ("cone1 name: " + cone1.name());

      System.out.println ();
      System.out.println ("cone2 value: " + cone2);
      System.out.println ("cone2 ordinal: " + cone2.ordinal());
      System.out.println ("cone2 name: " + cone2.name());

      cone3 = cone1;

      System.out.println ();
      System.out.println ("cone3 value: " + cone3);
      System.out.println ("cone3 ordinal: " + cone3.ordinal());
      System.out.println ("cone3 name: " + cone3.name());
   }
}