Untitled

using System;
//ISSUE cINPUT1INT and CINPUT2INT are 0!

namespace testconsole
{
    internal class Program
    {
        int number = 1234;  
        public int[] list = new int[9877];
        public int cInput2int, digit1, digit2, digit3, digit4, cInput1int, randomArrayItem, firstOne, wrong, correct;
        bool value = false;
        string playerNumber;
        public static bool win_;    
        Random rnd = new Random();
        static void Main(string[] args)

        {
            Program some = new Program();
            some.askForNumber();
            some.createArray();
            some.avoidImposible();
   
            do
            {
                some.selectArrayItem();
                some.checkForCorrectness();
                
                foreach (int i in some.list)
                {
                    if (some.list[some.randomArrayItem] != 0)
                    {
                        some.firstOne = some.list[some.randomArrayItem];
                        some.value = some.compareNumbers(some.firstOne, i, some.cInput1int, some.cInput2int);
                        if (some.value == false)
                        {
                            if (some.list[i] != 0)
                            {
                                if (some.list[i] == 1234)
                                {
                                    Console.ReadKey();
                                    Console.WriteLine("YOU ARE THE ONE MESSED UP!");
                                    Environment.Exit(420);
                                }
                                Console.WriteLine("eliminating " + some.list[i]);
                                some.list[i] = 0;
                            }
                        }
                    }
                }
            } while (win_ is false);
        }

        public void createArray()   
        {
            // Creates array that ranges from 1234-9876
            do
            {
                list[number] = number;
                number = number + 1;
            } while (number < 9877);
        }

        public void avoidImposible()
        {
            foreach (int i in list)
            {
                if (list[i] != 0)
                {
                    digit1 = list[i] / 1000;

                    digit2 = list[i] - (digit1 * 1000);
                    digit2 = digit2 / 100;

                    digit3 = list[i] - (digit2 * 100 + digit1 * 1000);
                    digit3 = digit3 / 10;

                    digit4 = list[i] - (digit2 * 100 + digit1 * 1000 + digit3 * 10);

                    if (digit1 == 0 || digit2 == 0 || digit3 == 0 || digit4 == 0)
                    {
                        list[i] = 0;
                    }
                    if (digit1 == digit2 || digit1 == digit3 || digit1 == digit4 || digit2 == digit3 || digit2 == digit4 || digit3 == digit4)
                    {
                        list[i] = 0;
                    }
                }
            }
        }

        public void askForNumber()
        {
            Console.WriteLine("Enter your 4 digit number that does not contain 0's or repeating digits: ");
            playerNumber = Console.ReadLine();
            Console.WriteLine("Enter in '{possitive number},{negative number}' form: ");
        }

        public void selectArrayItem()
        {
            randomArrayItem = rnd.Next(0, list.Length);
            if (list[randomArrayItem] != 0)
            {
                Console.WriteLine(list[randomArrayItem]);
            }
            else
            {
                selectArrayItem();
            }
        }

        public void checkForCorrectness()
        {
            //here cInput's are normal
            string correctnessInput = Console.ReadLine();
            string cInput1 = ToSplit(correctnessInput, 0);
            string cInput2 = ToSplit(correctnessInput, 1);
            Console.WriteLine("cInput1: " + cInput1 +  " cInput2: " + cInput2);
            int cInput1int = Convert.ToInt32(cInput1);
            int cInput2int = Convert.ToInt32(cInput2);
            Console.WriteLine("cInput1int: " + cInput1int + " cInput2int: " + cInput2int);

        }

        string ToSplit(string a, int b)
        {
            return a.Split(',')[b];
        }

        bool compareNumbers(int a , int b, int otherCorrect, int otherWrong)
        {
            correct = 0;
            wrong = 0;

            //compares a to b and checks if otherCorrect and otherWrong is mathching gives true or false
            //numberdigit is a. number2digit is b
            //spliting a into 4 digits
            int numberDigit1 = (a / 1000);
            int numberDigit2 = (a - numberDigit1 * 1000) / 100;
            int numberDigit3 = (a - numberDigit2 * 100 + numberDigit1 * 1000) / 10;
            int numberDigit4 = (a - numberDigit2 * 100 + numberDigit1 * 1000 + numberDigit3 * 10);

            //spliting b into 4 digits
            int number2Digit1 = (b / 1000);
            int number2Digit2 = (b - number2Digit1 * 1000) / 100;
            int number2Digit3 = (b - number2Digit2 * 100 + number2Digit1 * 1000) / 10;
            int number2Digit4 = (b - number2Digit2 * 100 + number2Digit1 * 1000 + number2Digit3 * 10);

            if (numberDigit1 == number2Digit1)
            {
                correct++;
            }
            if (number2Digit1 == number2Digit2 || numberDigit1 == number2Digit3 || numberDigit1 == number2Digit4)
            {
                wrong++;
            }
            if (numberDigit2 == number2Digit2)
            {
                correct++;
            }
            if (numberDigit2 == number2Digit1 || numberDigit2 == number2Digit3 || numberDigit2 == number2Digit4)
            {
                wrong++;
            }
            if (numberDigit3 == number2Digit3)
            {
                correct++;
            }
            if (numberDigit3 == number2Digit1 || numberDigit3 == number2Digit2 || numberDigit3 == number2Digit4)
            {
                wrong++;
            }
            if (numberDigit4 == number2Digit4)
            {
                correct++;
            }
            if (numberDigit4 == number2Digit1 || numberDigit4 == number2Digit2 || numberDigit4 == number2Digit3)
            {
                wrong++;
            }

            //here the cInputs are 0 (otherCorrect and otherWrong)

            if (correct == otherCorrect && wrong == otherWrong)
            {   
                return true;
            }
            else
            {
                return false;
            }
        }

        public void printArray()
        {
            foreach (int i in list)
            {
                Console.WriteLine(list[i]);
            }
        }
    }
}