rockPaperScissors.java

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

public class rockPaperScissors {
    public static void main(String[] args){
        //Rock paper scissors game
        // declare variables
        //get choice from the user
        //get random choice for the computer
        //ask to play again
        //goodbye
        Scanner scanner = new Scanner(System.in);
        Random random = new Random();
        String[] choices = {"rock","paper","scissors"};
        String playerChoice;
        String computerChoice;
        String playAgain = "yes";
        do {
            
        System.out.print("Enter your move(rock/paper/scissors): ");
        playerChoice = scanner.nextLine().toLowerCase();

        if(!(playerChoice.equals("rock")||playerChoice.equals("paper")||playerChoice.equals("scissor"))){
            System.out.println("Invalid Choice!");
            continue;
        }
        computerChoice = choices[random.nextInt(3)];
        System.out.println("Computer coice : "+computerChoice);
        
        if(playerChoice.equals(computerChoice)){
            System.out.println("It's a tie!");
        }
        else if((playerChoice.equals("rock")&&computerChoice.equals("scissors"))||
                (playerChoice.equals("paper")&&computerChoice.equals("rock"))||
                (playerChoice.equals("scissors")&&computerChoice.equals("paper"))){
            System.out.println("You win!");
        }
        else{
            System.out.println("You lose!");
        }
        System.out.print("You want to play again(yes/no):");
        playAgain = scanner.nextLine().toLowerCase();  
        } while (playAgain.equals("yes"));
        System.out.println("Thanks for playing.");
        scanner.close();
    }
}