/** Source code example for "A Practical Introduction to Data
    Structures and Algorithm Analysis, 3rd Edition (Java)" 
    by Clifford A. Shaffer
    Copyright 2008-2011 by Clifford A. Shaffer
*/

/** Container class for a key-value pair */
class KVpair<Key, E> {
  private Key k;
  private E e;

  /** Constructors */
  KVpair()
    { k = null; e = null; }
  KVpair(Key kval, E eval)
    { k = kval; e = eval; }

  /** Data member access functions */
  public Key key() { return k; }
  public E value() { return e; }
}