my prog. is in c# of switch case, and im getting error of cannot implicitly convert type 'string ' to 'int'

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1.00/5 (1 vote)

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C#

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

namespace ConsoleApplication6
{
    class Program
    {
        static void Main(String[]args)
        {
            int n;
            Console.WriteLine("enter your choice ");
            n =   Console.ReadLine();
            switch (n)
            {
                case 1: if (n == 1)
                        Console.WriteLine("1:Monday");
                    break;


                case 2: if (n == 2)
                        Console.WriteLine("2:Tuesday");
                    break;

                case 3: if (n == 3)
                        Console.WriteLine("3:Wednesday");
                    break;

                case 4: if (n == 4)
                        Console.WriteLine("4:Thursday");
                    break;


                case 5: if (n == 5)
                        Console.WriteLine("5:friday");
                    break;


                case 6: if (n == 6)
                        Console.WriteLine("6:saturday");
                    break;

                case 7: if (n == 7)
                        Console.WriteLine("7:sunday");
                    break;

                default: Console.WriteLine("wrong choice");
                    break;
            }
        }
    }
}

[edit]Code block added - OriginalGriff[/edit]

Posted 6-Mar-14 4:56am

Member 10648744

Updated 6-Mar-14 4:57am

OriginalGriff

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2 solutions

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

phil.o · Answer 1 · 2014-03-06T06:02:00

You don't need the if blocks inside the case ones.
So we could reduce your code to:

C#

static void Main(String[]args)
{
   string input;
   Console.WriteLine("enter your choice ");
   input = Console.ReadLine();
   int n;
   if (int.TryParse(input, out n)) {
      switch (n) {
         case 1:
            Console.WriteLine("1:Monday");
            break;

         case 2:
            Console.WriteLine("2:Tuesday");
            break;

         case 3:
            Console.WriteLine("3:Wednesday");
            break;

         case 4:
            Console.WriteLine("4:Thursday");
            break;

         case 5:
            Console.WriteLine("5:friday");
            break;

         case 6:
            Console.WriteLine("6:saturday");
            break;

         case 7:
            Console.WriteLine("7:sunday");
            break;

         default:
            Console.WriteLine("wrong choice");
            break;
      }
   }
   else {
      Console.WriteLine("Wrong input! You did not seem to enter a valid integer.");
   }
}

Hope this helps.

OriginalGriff · Answer 2 · 2014-03-06T05:00:00

ReadLine returns a string, so you can't assign it to an integer value. You need to look at it first, make sure it is a number and then convert it to one.
Try this:

C#

int n;
Console.WriteLine("enter your choice ");
string s = Console.ReadLine();
if (!int.TryParse(s, out n))
    {
    Console.WriteLine("\"{0}\" is not a number", s);
    }
else
    {
    switch (n)
        {
        case 1: if (n == 1)
                Console.WriteLine("1:Monday");
            break;


        case 2: if (n == 2)
                Console.WriteLine("2:Tuesday");
            break;

        case 3: if (n == 3)
                Console.WriteLine("3:Wednesday");
            break;

        case 4: if (n == 4)
                Console.WriteLine("4:Thursday");
            break;


        case 5: if (n == 5)
                Console.WriteLine("5:friday");
            break;


        case 6: if (n == 6)
                Console.WriteLine("6:saturday");
            break;

        case 7: if (n == 7)
                Console.WriteLine("7:sunday");
            break;

        default: Console.WriteLine("wrong choice");
            break;
        }
    }

my prog. is in c# of switch case, and im getting error of cannot implicitly convert type 'string ' to 'int'

2 solutions

Solution 3

Solution 1

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my prog. is in c# of switch case, and im getting error of cannot implicitly convert type 'string ' to 'int'

2 solutions

Solution 3

Solution 1

Add your solution here

Preview 0

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