Project E

Objective:

• The program will toss coins and/or dice and report the results.
• Create a Die and a Coin class that can each receive a toss() message. A single argument will determine the number of tosses. The tosses will, of course, result in random outcomes.
• These classes will implement a Tosser interface that declares the toss() method.
• Also create a TossFactory class that contains static methods returning references to instantiated Die or Coin objects.
• Be careful; avoid attempting to simply modify an example from the text. Close the book if you feel the temptation!
• You may use the following as a starting point for your work:

interface Tosser {/*...*/}

class Die implements Tosser {/*...*/}

class Coin implements Tosser {/*...*/}

class TossFactory {/*...*/}

public class TossGames {
  public static void main(String[] args) {
    Tosser t = TossFactory.getDie();
    t.toss(10);
    t = TossFactory.getCoin();
    t.toss(5); }
}

• Here is a sample of the output from one run of the completed code:

Three
Three
Three
Three
Four
One
Four
Two
One
Three

Heads
Tails
Tails
Tails
Heads

Submit your work via the CATE form for Project E.

Legend: method/function keyword literal

2007/03/28