/** 
 * Hypotenuse.java computes the hypotenuse length of a right triangle,
 * given the lengths of its two legs.
 *
 * @author Author
 * @version Version as of 2006-05-05
 * For: CIS 355 with Professor Sethi
 *
 * Specification:
 *   input(keyboard):
 *   output(screen):
 ******************************************************************/