• Proof of Execution
  • Challenges

Proof of Execution

// Scoreboard FRQ
class Scoreboard {
    private String team1;
    private String team2;
    private int score1;
    private int score2;
    private boolean team1active;

    public Scoreboard(String team1Name, String team2Name) {
        team1 = team1Name;
        team2 = team2Name;
        score1 = 0;
        score2 = 0;
        team1active = true;
    }

    public void recordPlay(int points) {
        if (points > 0) 
        {
            if (team1active == true)
            {
                score1 += points;
            }
            else
            {
                score2 += points;
        	}
        }
        else
        {
            team1active = !team1active;
        }
    }

    public String getScore() {
        if (team1active == true)
        {
            return score1 + "-" + score2 + "-" + team1;
        }
        else
        {
            return score1 + "-" + score2 + "-" + team2;
        }
    }
}

// Testing the Scoreboard class (DO NOT MODIFY this part unless you change the class, method, or constructer names)
// DO NOT MODIFY BELOW THIS LINE
class Main {
    public static void main(String[] args) {
        String info;

        // Step 1: Create a new Scoreboard for "Red" vs "Blue"
        Scoreboard game = new Scoreboard("Red", "Blue");

        // Step 2
        info = game.getScore();                  // "0-0-Red"
        System.out.println("(Step 2) info = " + info);

        // Step 3
        game.recordPlay(1);

        // Step 4
        info = game.getScore();                  // "1-0-Red"
        System.out.println("(Step 4) info = " + info);

        // Step 5
        game.recordPlay(0);

        // Step 6
        info = game.getScore();                  // "1-0-Blue"
        System.out.println("(Step 6) info = " + info);

        // Step 7 (repeated call to show no change)
        info = game.getScore();                  // still "1-0-Blue"
        System.out.println("(Step 7) info = " + info);

        // Step 8
        game.recordPlay(3);

        // Step 9
        info = game.getScore();                  // "1-3-Blue"
        System.out.println("(Step 9) info = " + info);

        // Step 10
        game.recordPlay(1);

        // Step 11
        game.recordPlay(0);

        // Step 12
        info = game.getScore();                  // "1-4-Red"
        System.out.println("(Step 12) info = " + info);

        // Step 13
        game.recordPlay(0);

        // Step 14
        game.recordPlay(4);

        // Step 15
        game.recordPlay(0);

        // Step 16
        info = game.getScore();                  // "1-8-Red"
        System.out.println("(Step 16) info = " + info);

        // Step 17: Create an independent Scoreboard
        Scoreboard match = new Scoreboard("Lions", "Tigers");

        // Step 18
        info = match.getScore();                 // "0-0-Lions"
        System.out.println("(Step 18) match info = " + info);

        // Step 19: Verify the original game is unchanged
        info = game.getScore();                  // "1-8-Red"
        System.out.println("(Step 19) game info = " + info);
    }
}

Challenges

Syntax was a big challenge for me. I forgot the brackets multiple times, as well as variable definition. I need to remember to add semicolons after each statement and to memorize the case-sensitivity of Java. Furthermore, I need to remember that “=” assigns values to the variable, while “==” compares values. Finally, when I finish writing my code, I always need to make sure to test it for logical errors, as I accidentally prevented team Red from ever gaining points before reviewing my code.