using System;

public class LoopingBankBal

{

    public static void Main()

    {

        /*

        double bankBal = 1000;

        const double INT_RATE = 0.04;

        string inputString;

        char response;

        //Console.Write("Do you want to see your balance? Y or N...");

        //inputString = Console.ReadLine();

        //response = Convert.ToChar(inputString);

        do

        {

            Console.WriteLine("Bank balance is {0}", bankBal.ToString("C"));

            bankBal = bankBal + bankBal * INT_RATE;

            Console.WriteLine("Do you want to see next year's balance? Y or N ...");

            response = Convert.ToChar(Console.ReadLine());

        } while (response == 'Y');

        Console.WriteLine("Have a nice day!");

        */

        /*

        double bankBal;

        double rate;

        int year;

        const double START_BAL = 1000;

        const double START_INT = 0.04;

        const double INT_INCREASE = 0.02;

        const double LAST_INT = 0.08;

        const int END_YEAR = 5; 

        for (rate = START_INT; rate <= LAST_INT; rate += INT_INCREASE)

        {

            bankBal = START_BAL; 

            Console.WriteLine("Starting bank balance is {0}", bankBal.ToString("C"));

            Console.WriteLine(" Interest Rate: {0}", rate.ToString("P"));

            for (year = 1; year <= END_YEAR; ++year)

            {

                bankBal = bankBal + bankBal * rate;

                Console.WriteLine(" After year {0}, bank balance is {1}", year, bankBal.ToString("C"));

            }

        }

        */

        /*

        int i = 0;

        while (i < 4)

        {

            int j = 0;

            while (j < 4)

            {

                Console.Write("({0}, {1}) ", i, j);

                j++;

            }

            i++;

            Console.WriteLine();

        } */

        /*

        char op;

        double first, second, result; 

        first = Convert.ToDouble(Console.ReadLine());

        second = Convert.ToDouble(Console.ReadLine());

        op = Convert.ToChar(Console.ReadLine());

        switch (op)

        {

            case '+':

                result = first + second;

                Console.WriteLine("{0} + {1} = {2}", first, second, result);

                break;

            case '-':

                result = first - second;

                Console.WriteLine("{0} - {1} = {2}", first, second, result);

                break;

            case '*':

                result = first * second;

                Console.WriteLine("{0} * {1} = {2}", first, second, result);

                break;

            case '/':

                result = first / second;

                Console.WriteLine("{0} / {1} = {2}", first, second, result);

                break;

            default:

                Console.WriteLine("Invalid Operator");

                break;

        }

        */

        //GOTO

        //label

        /*

        repeat:

            Console.WriteLine("Enter a number < 10: ");

            int num = Convert.ToInt32(Console.ReadLine());

        if (num >= 10)

        {

            goto repeat; //transfer control to label 

        }

        Console.WriteLine(num + " is less than 10");

        Console.ReadLine();

    */

        Console.Write("Choose your coffee? milk or blakc: ");

        string coffeeType = Console.ReadLine(); 

        switch (coffeeType)

        {

            case "milk":

                Console.WriteLine("Can I have a milk coffee?");

                break;

            case "black":

                Console.WriteLine("Can I have a black coffee?");

                goto case "milk";

                //tranfer to other case

            default:

                Console.WriteLine("Not available");

                break;

        }

    }

}