Question

How to use string format double numbers between zero and one in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            double d = 0.12;

            try
            {
                Console.WriteLine(String.Format("{0:0.0}", d));     // 0.1
                Console.WriteLine(String.Format("{0:0.0}", 0.0));   // 0.0
                Console.WriteLine(String.Format("{0:0.0}", 0.00));  // 0.0
                Console.WriteLine(String.Format("{0:0.0}", 0.57));  // 0.6
                Console.WriteLine(String.Format("{0:0.00}", 0.34)); // 0.34
                Console.WriteLine(String.Format("{0:0.#}", 0.0));   // 0
                Console.WriteLine(String.Format("{0:0.#}", 0.1));   // 0.1
                Console.WriteLine(String.Format("{0:#.0}", 0.0));   // .0
                Console.WriteLine(String.Format("{0:#.0}", 0.3));   // .3
                Console.WriteLine(String.Format("{0:#.#}", 0.0));   // ""
                Console.WriteLine(String.Format("{0:#.#}", 0.7));   // .7
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:

0.1
0.0
0.0
0.6
0.34
0
0.1
.0
.3

.7
 
*/

 

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