import java.util.*;
import java.io.*;

public class Main
{
    static int colourNum, correctGuesses = 0;;
    static String colour;
    static Scanner kbd = new Scanner(System.in);
    static Random rnd = new Random();
    public static void main(String[] args)
    {
        userValidation();

        System.out.println("You have guessed " + correctGuesses + " colours correct!");
    }
    /**

        The userChoice method get's their color guess while determining if it is correct to the computer's

     */
    public static void userChoice()
    {
        colourNum = rnd.nextInt(5);
        System.out.println("Enter the colour selected by the computer:");
        colour = kbd.nextLine();
        userCorrect(colour, colourNum);
        computerChoice(colourNum);
    }
    /**

        The computerChoice method prints the color the computer chooses.
        @param colourNum The random color selected by the computer

     */
    public static void computerChoice(int colourNum)
    {
        switch(colourNum)
        {
            case(0):
                System.out.println("The colour is Red");
                break;
            case(1):
                System.out.println("The colour is Green");
                break;
            case(2):
                System.out.println("The new colour is Blue");
                break;
            case(3):
                System.out.println("The new colour is Orange");
                break;
            case(4):
                System.out.println("The new colour is Yellow");
                break;
        }
    }
    public static boolean userCorrect(String colour, int colourNum)
    {
        switch(colour.toLowerCase())
        {
            case("red"):
                if(colourNum == 0)
                {
                    System.out.println("Correct!");
                    correctGuesses ++;
                    return true;
                }
                    break;
            case("green"):
                if(colourNum == 1)
                {
                    System.out.println("Correct!");
                    correctGuesses ++;
                    return true;
                }
                    break;
            case("blue"):
                if(colourNum == 2)
                {
                    System.out.println("Correct!");
                    correctGuesses ++;
                    return true;
                }
                    break;
            case("orange"):
                if(colourNum == 3)
                {
                    System.out.println("Correct!");
                    correctGuesses ++;
                    return true;
                }
                    break;
            case("yellow"):
                if(colourNum == 4)
                {
                    System.out.println("Correct!");
                    correctGuesses ++;
                    return true;
                }
                    break;
        }
        return false;
    }
    public static void userValidation()
    {
        boolean valid = false;
        while(!valid)
        {
            for(int i = 0; i < 5;i++)
            {
            userChoice();
            }
            valid = true;
        }
    }

}