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C# | Padding an integer number with leading zeros
In this tutorial, we will learn how to pad an integer number with leading zero in C#?
By IncludeHelp Last updated : April 09, 2023
Padding an integer number with leading zeros
To pad an integer number with leading zero, we use String.Format() method which is library method of String class in C#. It converts the given value based on the specified format.
Consider the below statement for padding with leading zeros,
String.Format("{0:000000}", number)
C# code for padding an integer number with leading zeros
using System;
namespace ConsoleApplication1 {
class Program {
static void Main(string[] args) {
Console.WriteLine("Demo for pad zeros before an integer number:");
Console.WriteLine(String.Format("{0:000000}", 256));
Console.WriteLine(String.Format("{0:000000}", -256));
Console.WriteLine();
}
}
}
Output
Demo for pad zeros before an integer number:
000256
-000256
Explanation
In the above program, we are printing 256 and -256 numbers in 6 digits, as we know that 256 has 3 digits and we are padding (left/leading) them with zeros.
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