Question

Using very basic Java programming Write a program that lets the user play the game of Rock, Paper, Scissors against the computer.The program should use an array of Strings with the names of the choices.The program should loop until the human player decides to quit.The game should keep track of how many times the human won, lost, or tied and present those values when the game ends.

Answer 1

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

public class RockPaperScissors {
   public final static String ONE = "rock";
   public final static String TWO = "paper";
   public final static String THREE = "scissors";
   static int comCount=0;
   static int userCount=0;
  
   public static void main(String[] args) {
       String ch = "y";
       Scanner sc = new Scanner(System.in);
       while (ch.equalsIgnoreCase("y")) {
           int cch = getSystemChoice();
           int uch = getPlayerChoice();
           displayWinner(cch, uch);
           System.out.println("Do you want to continue (Y/N)");
           ch = sc.nextLine();
       }
       System.out.println("Computer Wons : "+comCount);
       System.out.println("User Wons : "+userCount);
      
       sc.close();
   }

  
   private static int getSystemChoice() {
       // generating the random from 1 to 3
       int n = new Random().nextInt(3) + 1;
       return n;

   }
   private static int getPlayerChoice() {
       // asking the for user input
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter user chouce 1 rock 2 papaer 3 scissors");
       return sc.nextInt();
   }

   private static void displayWinner(int c, int user) {
       // checking winner based on user and computer choice
       if (c == 1 && user == 3){
           System.out.println("Computer wons");
           comCount++;
       }
       else if (c == 3 && user == 1){
           System.out.println("User wons");
           userCount++;
       }
       else if (c == 2 && user == 1){
           System.out.println("Computer wons");
           comCount++;
       }
       else if (c == 1 && user == 2){
           System.out.println("User wons");
           userCount++;
       }
       else
           System.out.println("game is tie");
   }
}