/* Interface/specification of a simple Counter
   Purpose: simplest example of an ADT
   Author: RJBotting
   Started: Tue Jun 19 10:11:33 PDT 2007
*/

#ifndef COUNTDOWN_H
#define COUNTDOWN_H

class CountDown
{ //Counts down from a given start until zero

  public: //Application Programmer Interface
	CountDown(int start); // it is set to start
	void next(); // subtracts one from it
	bool end()const; // returns true if and only if it <= 0
 private:
	int it;
};//end class CountDown
#endif