Question

JAVA

Remember the childhood game “Rock, Paper, Scissors”? It is a two-players game in which each person simultaneously chooses either rock, paper, or scissors. Rock beats scissors but loses to paper, paper beats rock but loses to scissors, and scissors beats paper but loses to rock. Your program must prompt the player 1 and player 2 to each enter a string for their choice: rock, paper, or scissors. Then appropriately reports if “Player 1 wins”, “Player 2 wins”, or “It is a tie.” Your program should work for both lower case and uppercase letters. If the user string is not rock, scissors or paper the program will print “Wrong choice”.

Sample Run: User input is in Bold.

Player 1: Choose rock, scissors, or paper:

rock

Player 2: Choose rock, scissors, or paper:

paper

Player 2 wins.

Player 1: Choose rock, scissors, or paper:

scissors

Player 2: Choose rock, scissors, or paper:

rock

Player 2 wins.

Player 1: Choose rock, scissors, or paper:

PAPER

Player 2: Choose rock, scissors, or paper:

Rock

Player 1 wins.

Player 1: Choose rock, scissors, or paper:

rock

Player 2: Choose rock, scissors, or paper:

pen

Wrong choice!

Answer 1

import java.util.*;
public class Test {
   public static int result(String player1, String player2){
       if(player1.equalsIgnoreCase("rock") && player2.equalsIgnoreCase("rock"))
           return 0;
       else if(player1.equalsIgnoreCase("rock") && player2.equalsIgnoreCase("scissors"))
           return 1;
       else if(player1.equalsIgnoreCase("rock") && player2.equalsIgnoreCase("paper"))
           return 2;
       else if(player1.equalsIgnoreCase("scissors") && player2.equalsIgnoreCase("rock"))
           return 2;
       else if(player1.equalsIgnoreCase("scissors") && player2.equalsIgnoreCase("scissors"))
           return 0;
       else if(player1.equalsIgnoreCase("scissors") && player2.equalsIgnoreCase("paper"))
           return 1;
       else if(player1.equalsIgnoreCase("paper") && player2.equalsIgnoreCase("rock"))
           return 1;
       else if(player1.equalsIgnoreCase("paper") && player2.equalsIgnoreCase("scissors"))
           return 2;
       else if(player1.equalsIgnoreCase("paper") && player2.equalsIgnoreCase("paper"))
           return 0;
       return -1;
   }
   public static void main(String[] args) {
       String player1,player2;
       Scanner sc=new Scanner(System.in);
       System.out.println("Player 1: Choose rock, scissors, or paper:");
       player1=sc.nextLine();
       System.out.println("Player 2: Choose rock, scissors, or paper:");
       player2=sc.nextLine();
       if(result(player1,player2)==1){
           System.out.println("Player 1 wins");
       } else if(result(player1,player2)==2){
           System.out.println("Player 2 wins");
       } else if(result(player1,player2)==0){
           System.out.println("It is a tie");
       } else {
           System.out.println("Wrong choice!");
       }
   }
}