1  /**

  2     This class collects a pair of elements of different types.

  3  */

  4  public class Pair<T, S>

  5  {

  6     private T first;

  7     private S second;

  8  

  9     /**

 10        Constructs a pair containing two given elements.

 11        @param firstElement the first element

 12        @param secondElement the second element

 13     */

 14     public Pair(T firstElement, S secondElement)

 15     {

 16        first = firstElement;

 17        second = secondElement;

 18     }

 19  

 20     /**

 21        Gets the first element of this pair.

 22        @return the first element

 23     */

 24     public T getFirst() { return first; }

 25  

 26     /**

 27        Gets the second element of this pair.

 28        @return the second element

 29     */

 30     public S getSecond() { return second; }

 31  

 32     public String toString() { return "(" + first + ", " + second + ")"; }

 33  }