Mastering Java: The Ultimate Quiz for 'Thinking in Java

The 'compete()' method in the 'RoShamBo' example returns an enum instance indicating whether the player won, lost, or tied the game. Option A is incorrect because it suggests that an integer value is returned, which would not make sense for a game that has more than two possible outcomes. Option B is also incorrect because the 'ROCK, PAPER, SCISSORS' enum is used to represent the choices, not the result. Option D is incorrect because a boolean value would not be able to accurately represent all the possible outcomes in the game. Therefore, option C is the correct and most logical answer.