public/subjects/java/piscine/Chifoumi

Chifoumi

Prerequisite

Create a file ChifoumiAction.java and paste the following code inside it:

public enum ChifoumiAction {
    ROCK, PAPER, SCISSOR
}

Instructions

Create a file Chifoumi.java.

Write a function getActionBeatenBy which takes an action as a parameter, and returns the action which is beaten by the argument.

The actions:

• ROCK will return SCISSOR
• PAPER will return ROCK
• SCISSOR will return PAPER

Use the switch operator.

Expected Functions

public class Chifoumi {
    public static ChifoumiAction getActionBeatenBy(ChifoumiAction chifoumiAction) {
        // your code here
    }
}

Usage

Here is a possible ExerciseRunner.java to test your function :

public class ExerciseRunner {
    public static void main(String[] args) {
        System.out.println(Chifoumi.getActionBeatenBy(ChifoumiAction.ROCK));
        System.out.println(Chifoumi.getActionBeatenBy(ChifoumiAction.PAPER));
        System.out.println(Chifoumi.getActionBeatenBy(ChifoumiAction.SCISSOR));
    }
}

and its output :

$ javac *.java -d build
$ java -cp build ExerciseRunner
SCISSOR
ROCK
PAPER
$

Notions

Switch statement
Enum