Wrong integer output on Console.Read()

Question

I'm trying to output a variable that I'm getting as an input from the user, but I get the wrong number.

Here is my code so far:

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

namespace sequence
{
    class Program
    {
        static void Main(string[] args)
        {
            int userInput = Console.Read();

            Console.WriteLine("User input is: {0}", userInput.GetType());
            Console.WriteLine("User input is: {0}", userInput);
        }
    }
}

Output:

3
User input type is: System.Int32
User input is: 51
Press any key to continue

If I type 4, I get 52. 5, 53 and so on.

Answer 1

Use Console.ReadLine() which returns string and you need to convert into int

Try this

namespace sequence
{
    class Program
    {
        static void Main(string[] args)
        {
            var input = Console.ReadLine();
            int userInput;
            if (!int.TryParse(input, out userInput))
            {
                Console.WriteLine("You have entered invalid number");
            }
            else
            {
                Console.WriteLine("User input is: {0}", userInput.GetType());
                Console.WriteLine("User input is: {0}", userInput);
            }
            Console.WriteLine("Press any key to exit");
            Console.ReadKey();                
        }
    }
}

Answer 2

That's because Console.Read() returns the integer code of the character being read. You must subtract 48 from the char to get the actual number.

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

namespace sequence
{
    class Program
    {
        static void Main(string[] args)
        {
            int userInput = Console.Read();

            Console.WriteLine("User input is: {0}", userInput.GetType());
            Console.WriteLine("User input is: {0}", userInput - 48);
        }
    }
}