CODEWITHSUNDEEP
c#loops
Osti991
Osti991

Reputation: 11

c# What loop to use

Ok so my question is this, I currently have 3 possible answers: yes, no, and everything else. I want my program to write "Pardon me?" until I answer yes or no... I'm new to using c# and still learning so please as simple as possible. Thank you 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Pitalica
{
class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("Kvisko");
        Console.WriteLine("\"Hello Traveller!!\" says a man. \"What's your name?\"");
        string playerName = Console.ReadLine();
        Console.WriteLine("\"Hi " + playerName + ", welcome to the beautiful city of Osijek!\nI would like to give you a tour of our little town, but I don't have time to do so right now.\nI need to go to class.\"");
        Console.WriteLine("He looks at you with your backpack on your back.\"But I could show you later if you're up to?\"");
        string answer1 = Console.ReadLine();
        if (answer1 == "yes")

            Console.WriteLine("\"We have a deal, " + playerName + "!\"");
        else if (answer1 == "no")

            Console.WriteLine("\"Your loss," + playerName + "...\"");
        else 
        {
            Console.WriteLine("Pardon me?");
        }
        Console.WriteLine("After some time...");

        }
    }
}

Upvotes: 1

Views: 73

Answers (1)

Dmitrii Bychenko
Dmitrii Bychenko

Reputation: 186803

Technically, you can implement any loop, but I suggest while

 ...
 string answer1 = Console.ReadLine();

 while (answer1 != "yes" && answer1 != "no") {
   Console.WriteLine("Pardon me?");
   answer1 = Console.ReadLine();
 }
 ...

Just keep asking while answer1 is not a correct one.

Edit: As Hogan suggested in the comment, we should be nice to user: let he/she enter YES/no in any register with leading and trailing white spaces:

 ...
 // with Trim() and ToUpper() all "Yes", "   yes", "YES  " are OK
 string answer1 = Console.ReadLine().Trim().ToUpper();

 while (answer1 != "YES" && answer1 != "NO") {
   Console.WriteLine("Pardon me?");

   answer1 = Console.ReadLine().Trim().ToUpper();
 }
 ...

Edit 2: to exit the program (see an additional question in the comments), just return from the Main:

 ...
 if (answer1 == "NO") {
   Console.WriteLine("Your loss"); 

   return; // return from Main will exit the program
 }

Upvotes: 7

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