Question

I’ve a String with Length = 100;

I need to center the text “Hello”, in that string using whitespaces.

How can i do ?

thanks.

Answer 1

You can use the string padding methods and a little match to calcualte the center position:

var stringToCenter = "hello";
var totalLength = 100;

var centeredString = 
     stringToCenter.PadLeft(((totalLength - stringToCenter.Length) / 2) 
                            + stringToCenter.Length)
                   .PadRight(totalLength);

And you can move this logic into an extension method:

public static class StringExtensions{

    public static string CenterString(this string stringToCenter, int totalLength)
    {
        return stringToCenter.PadLeft(((totalLength - stringToCenter.Length) / 2) 
                            + stringToCenter.Length)
                   .PadRight(totalLength);
    }
}

And you can use it like

var centeredString = "hello".CenterString(100);

Demo .NETFiddle.