StringBuilder

A class for efficiently building or changing a sequence of characters.

What is StringBuilder in C#?

StringBuilder — A class for efficiently building or changing a sequence of characters.

using System.Text;

class MessageBuilder
{
    string Build()
    {
        StringBuilder message = new("Order");
        message.Append(" ready");
        return message.ToString();
    }
}

Level: Apprentice · More C# terms at this level

Updated September 27, 2026