C# Custom formatting of integer numbers using String.Format() method

C# String.Format() strategy with Example: Here, we will find out about the custom arranging of integer numbers in C#.

Here is the portion of the examples of custom organizing of integer numbers in C#.

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Demo for custom formatting of an integer number:");

            Console.WriteLine(String.Format("{0:+#### #### ####}" ,  1234567891012));
            Console.WriteLine(String.Format("{0:##-##-####}", 21102019));
            Console.WriteLine(String.Format("{0:##/##/####}", 21102019));
            
            Console.WriteLine();  
        }
    }
}

Output:

Demo for custom formatting of an integer number:
+12345 6789 1012
21-10-2019
21/10/2019

In the above program, we printed sign ‘+‘ and printed the numbers in 4 digits multiple times. What’s more, here we printed the date additionally with image ‘- ‘ and ‘/’.