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

 
public class RockPaperScissor{

    public static void main(String [] args){

         

        int computerRandom;

        String userInput = "";

        char userChoice = 'j' ;

        char computerChoice = 'j';

        int computerWin = 0;

        int userWin = 0;

         

        Random random = new Random();

        Scanner reader = new Scanner (System.in);

		System.out.print("\nPlease enter the number of rounds you would like to play ");

	if (userChoice % 2 == 0) {

	//Enter error message here.

		System.out.println ("Sorry, enter an odd number of lines! Please try again.");

	if (userChoice == '3'){
}

                      

            while(userChoice != 'r' && userChoice != 'p' && userChoice != 's'){


                    System.out.print("\nPlease input r for Rock p for Paper or s for Scissor: ");


                     userInput = reader.nextLine();

                    userChoice = userInput.charAt(0);

                    System.out.print("\n" +userChoice);
            }


            computerRandom = random.nextInt(3);


          switch (computerRandom){

                case 1: computerChoice = 'r'; break;

                case 2: computerChoice = 'p'; break;

                case 3: computerChoice = 's'; break;

            }


            if (computerChoice == userChoice){

                System.out.print("\nTie ");

            }else{

                if (computerChoice  == 'r'){

                    if (userChoice == 'p'){

                        System.out.print("\nPaper beats rock, you win!");
                        userWin++;

                    }

                    if (userChoice == 's'){

                        System.out.print("\nRock beats scissor, you lose!");

                        computerWin++;

                    }

                }

                if (computerChoice  == 'p'){

                    if (userChoice == 'r'){

                        System.out.print("\nPaper beats rock, you lose!");

                        computerWin++;

                    }

                    if (userChoice == 's'){

                        System.out.print("\nScissors beat paper, you win!");

                        userWin++;

                    }

                }

                if (computerChoice  == 's'){

                    if (userChoice == 'r'){

                        System.out.print("\nRock beats Scissor, you lose!");

                        computerWin++;

                    }

                    if (userChoice == 'p'){

                        System.out.print("\nPaper beats rock, you win!");

                        userWin++;

                    }

               }

            }

            System.out.print("\nThe score is: user: " + userWin + " computer: " + computerWin);

        }

    }

            if (computerChoice == userChoice){

                System.out.print("\nTie ");

            }else{

                // ... else code here ...

            }

import java.io.*;

class RockPaperScissors {
	BufferedReader BR = new BufferedReader(new InputStreamReader(System.in));
	public static void main(String[] args) {
		RockPaperScissors RPS = new RockPaperScissors();
		System.out.println("Welcome to Rock, Paper, or Scissors!");
		System.out.print("Please enter the number of rounds you would like to play : ");
		int round = RPS.rounds();
		int user = 0;
		int computer = 0;
		for (int i = 0; i < round; i++) {
			if (RPS.choose(i + 1))
				user++;
			else
				computer++;
		}
		RPS.result(user, computer);
	}
	
	void result(int user, int computer) {
		System.out.println("RESULTS:"); 
		System.out.println("User wins : " + user); 
		System.out.println("Computer wins : " + computer); 
		if (user > computer)
			System.out.println("User wins the game!\n");
		else
			System.out.println("Computer wins the game!\n");
	}
	
	int rounds() {
		try {
			int temp = Integer.parseInt(BR.readLine());
			if (temp % 2 == 0)
				throw new Exception();
			return temp;
		}
		catch (Exception err) {
			System.out.print("Sorry, you need to enter an odd number. Please try again : ");
			return rounds();
		}
	}
	
	boolean choose(int val) {
		System.out.print("[Round " + val + "] Rock, Paper, or Scissors? : ");
		String input = "";
		try {
			input = BR.readLine();
		}
		catch(Exception err) {
		}
		if (input.equals("Rock"))
			return process(1, val);
		else if (input.equals("Paper"))
			return process(2, val);
		else if (input.equals("Scissors"))
			return process(3, val);
		else {
			System.out.println("Sorry, \"" + input + "\" is not a valid entry!\n");
			return choose(val);
		}
	}
	
	boolean process(int user, int val) {
		String[] hand = {"", "Rock", "Paper", "Scissors"};
		int comp = (int)(Math.random() * 3) + 1;
		if (user == comp) {
			System.out.println("Computer chooses " + hand[user] + ". It's a tie.\n");
			return choose(val);
		}
		else if (user == 1 && comp == 3) {
			System.out.println("Computer chooses " + hand[comp] + ". You win!\n");
			return true;
		}
		else if (user == 2 && comp == 3) {
			System.out.println("Computer chooses " + hand[comp] + ". You lose!\n");
			return false;
		}
		else if (user == 1 && comp == 2) {
			System.out.println("Computer chooses " + hand[comp] + ". You lose!\n");
			return false;
		}
		else if (user == 3 && comp == 2) {
			System.out.println("Computer chooses " + hand[comp] + ". You win!\n");
			return true;
		}
		else if (user == 2 && comp == 1) {
			System.out.println("Computer chooses " + hand[comp] + ". You win!\n");
			return true;
		}
		else {
			System.out.println("Computer chooses " + hand[comp] + ". You lose!\n");
			return false;
		}
	}
}