//An enumeration type to represent US coins
public enum US_Coin
{
   PENNY(1), NICKLE(5), DIME(10), QUARTER(25), HALF_DOLLAR(50), DOLLAR(100);
   
   //Instance Variable   
   private int value;   //The cents value of this US_Coin
   
   //Constructor  
   private US_Coin(int value)
   {
      this.value = value;
   }
   
   //Accessor
   //Returns the cents value of this US_Coin   
   public int getValue()
   {
      return this.value;
   }
   
   //Override
   //Returns a printable image of this US_Coin
   public String toString()
   {
      if (this == DOLLAR)
         return "$1";
      return this.value + "c.";
   }
}