public class HashEntry<K,V>  implements Entry<K,V>
{
   private K key;
   private V value;

   /** Constructor */
   HashEntry( K k, V v)
   {
      key = k;
      value = v;
   }

   /** Returns the key stored in this entry. */
   public K getKey()
   {
      return key;
   }

   /** Returns the value stored in this entry. */
   public V getValue()
   {
      return value;
   }

   public V setValue(V val) 
   {
      V oldValue = value;

      value = val;                // Update value
      return oldValue;            // Return old value
   }

   public boolean equals(Object o) 
   {
      HashEntry<K,V> ent;

      try 
      { 
         ent = (HashEntry<K,V>) o;    // Try casting it to a HashEntry
      }
      catch (ClassCastException ex) 
      { 
         return false;                // Casting failed, can't compare
      }

      /* -------------------------------------------------------
         Object is equal is key and value are same object...
         ------------------------------------------------------- */
      return (ent.getKey() == key) && (ent.getValue() == value);
   }

   public String toString() 
   {
      return "(" + key + "," + value + ")";
   }
}