21 Match Sticks Game

21 Match Sticks is a small game. That can be implemented easily in any programming language.

In this game, user/computer needs to pick 1 to 4 sticks and whoever picks the last stick will lose the game.

import java.util.Scanner;

public class MatchSticks21 {

      public static void main(String[] args) {

            int matchstick = 21;

            int user = 0;

            int computer = 0;

            Scanner scanner = new Scanner(System.in);

            while (matchstick >= 1) {

                  if (matchstick == 1) {

                        System.out.println("Match stick status: " + matchstick);

                        System.out.println("\nYou loose!!!!!!:(:(");

                        break;

                  }                            

                  System.out.println("Match stick status: " + matchstick);

                  System.out.println("\nEnter the choice (1,2,3,4)):");

                  user = scanner.nextInt();

                  System.out.println("\nYou picked: " + user);

                  if (user >= 5 || user <= 0) {

                        System.out.println("\nInvalid value");

                        continue;

                  }

                  computer = 5 - user;

                  System.out.println("\nComputer picked " + computer);

                  matchstick = matchstick - computer - user;

            }

      }

}