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C# | Rounding the digits before decimal point using String.Format() method

C# | String.Format() method example: Here, we are going to learn how to round the digits before the decimal point using String.Format() method in C#?
Submitted by IncludeHelp, on November 02, 2019

To round the digits before the decimal point, we can use String.Format() method, here is the example.

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            //Minimum two digits before decimal point
            Console.WriteLine("Minimum Two digits before decimal point");
            Console.WriteLine(String.Format("{0:00.0}", 12512.4567));
            Console.WriteLine(String.Format("{0:00.0}", 512.4567));
            Console.WriteLine(String.Format("{0:00.0}", 2.4567)); 
            Console.WriteLine(String.Format("{0:00.0}", -2.4567));

            //Minimum three digits before decimal point
            Console.WriteLine("Minimum Three digits before decimal point");
            Console.WriteLine(String.Format("{0:000.0}", 12512.4567));
            Console.WriteLine(String.Format("{0:000.0}", 12.4567));
            Console.WriteLine(String.Format("{0:000.0}", 2.4567));
            Console.WriteLine(String.Format("{0:000.0}", -2.4567));

            Console.WriteLine();  
        }
    }
}

Output

Minimum Two digits before decimal point
12512.5
512.5
02.5
-02.5
Minimum Three digits before decimal point
12512.5
012.5
002.5
-002.5





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