rpsjava

import java.util.Random;
import java.util.Scanner;

public class RockPaperScissors {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        Random random = new Random();

        boolean playAgain = true;
        while (playAgain) {
            int computerChoice = random.nextInt(3) + 1; //1=rock, 2=paper, 3=scissors

            System.out.println("Let's play Rock, Paper, Scissors!");
            System.out.print("Enter your choice (1=rock, 2=paper, 3=scissors): ");
            int userChoice = input.nextInt();

            System.out.println("You chose " + getChoice(userChoice));
            System.out.println("The computer chose " + getChoice(computerChoice));

            int result = getResult(userChoice, computerChoice);
            if (result == 0) {
                System.out.println("It's a tie!");
            } else if (result == 1) {
                System.out.println("You win!");
            } else {
                System.out.println("The computer wins!");
            }

            System.out.print("Do you want to play again? (y/n): ");
            String playAgainChoice = input.next();
            if (!playAgainChoice.equalsIgnoreCase("y")) {
                playAgain = false;
            }
        }
    }

    public static String getChoice(int choice) {
        switch (choice) {
            case 1:
                return "rock";
            case 2:
                return "paper";
            case 3:
                return "scissors";
            default:
                return "invalid";
        }
    }

    public static int getResult(int userChoice, int computerChoice) {
        if (userChoice == computerChoice) {
            return 0;
        } else if ((userChoice == 1 && computerChoice == 3) || (userChoice == 2 && computerChoice == 1) || (userChoice == 3 && computerChoice == 2)) {
            return 1;
        } else {
            return -1;
        }
    }
}