need help converting string to int

[Sara Bear]

//
//
//
// 
//
//
//

import java.util.Scanner;
import java.util.Random;
public class RockPaperScissors
{
	static Scanner keyboard;
		public static void main(String[] args)
		{
		
			
			String player = "";
			int playerAnswer = 0;
			int computer = 0;
			String random;
		
			Scanner Keyboard = new Scanner(System.in);
		
			playerAnswer = playerAnswer(player);
			
			
			computer = computerRandom(computer);
		
			getWinner(player, computer);
		
		
		}
		
		public static int playerAnswer(String player)
			{
			Scanner Keyboard = new Scanner(System.in);
			System.out.println("Choose rock, paper or scissors");
			player = keyboard.nextLine();
			if (player.equalsIgnoreCase("rock"))
				playerAnswer = 0;  // these are my problem areas
			else if(player.equalsIgnoreCase("paper"))
				playerAnswer = 1;  //here
			else if (player.equalsIgnoreCase("scissors"))
				playerAnswer = 2;	// here
			return playerAnswer;
			}
			
		public static int computerRandom(int computer)
			{
			Random randomNumbers = new Random();
			computer = randomNumbers.nextInt(3);
			return computer;
			}
			
		public static void getWinner(int playerAnswer, int computer)
			{
			if (playerAnswer == 0 && computer == 1)
				System.out.print("Computer wins");
			else if (playerAnswer  == 0 && computer == 2)
				System.out.print("Player wins");
			else if (playerAnswer  == 1 && computer == 0)
				System.out.print("Player wins");
			else if (playerAnswer == 1 && computer == 2)
				System.out.print("Computer wins");
			else if (playerAnswer  == 2 && computer == 0)
				System.out.print("Computer wins");
			else if (playerAnswer == 2 && computer == 1)
				System.out.print("Player wins");
			
			while (playerAnswer == computer)
				System.out.print("Tie, Please select again");
			playerAnswer  = playerAnswer(player);
			}	
}			
		
	

my errors are:

RockPaperScissors.java:30: error: method getWinner in class RockPaperScissors ca
nnot be applied to given types;
getWinner(player, computer);
^
required: int,int
found: String,int
reason: actual argument String cannot be converted to int by method invocation
conversion
RockPaperScissors.java:41: error: cannot find symbol
playerAnswer.toInt = 0;
^
symbol: variable playerAnswer
location: class RockPaperScissors
RockPaperScissors.java:43: error: cannot find symbol
playerAnswer = 1;
^
symbol: variable playerAnswer
location: class RockPaperScissors
RockPaperScissors.java:45: error: cannot find symbol
playerAnswer = 2;
^
symbol: variable playerAnswer
location: class RockPaperScissors
RockPaperScissors.java:46: error: cannot find symbol
return playerAnswer;
^
symbol: variable playerAnswer
location: class RockPaperScissors
RockPaperScissors.java:73: error: cannot find symbol
playerAnswer = playerAnswer(player);
^
symbol: variable player
location: class RockPaperScissors
6 errors



I kind of assumed it would look something like this:

public static int playerAnswer(String player)
{
Scanner Keyboard = new Scanner(System.in);
System.out.println("Choose rock, paper or scissors");
player = keyboard.nextLine(); //maybe player.toInt = keyboard.nextLine()
if (player.equalsIgnoreCase("rock"))
playerAnswer = 0; // or maybe something like player.toInt = 0; instead of having playerAnswer
else if(player.equalsIgnoreCase("paper"))
playerAnswer = 1;
else if (player.equalsIgnoreCase("scissors"))
playerAnswer = 2;
return playerAnswer;
}

[Jeff Verdegan]

You're already converting a String to an int. You're just ignoring that int and passing your original String to the method that expects an int.

A couple of other points:

You should only create a single Random, rather than creating a new one each time through the method. Make it a static member varaible.

There's no need to pass an int to your computerRandom() method. You're not using that parameter at all. Just declare a local variable instead.