Question

How to append string to existing string using StringBuilder in C#

Answer 1

using System;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            StringBuilder sb = new StringBuilder("string");

            sb.Append(" builder");
            Console.WriteLine(sb); // string builder
        }
    }
}

/*
run:
  
string builder

*/

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Answer 2

using System;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            StringBuilder sb = new StringBuilder("numbers: ");
            
            for (int i = 1; i <= 10; i++)
            {
                sb.Append(i).Append(" ");
            }
            Console.WriteLine(sb); // numbers: 1 2 3 4 5 6 7 8 9 10
        }
    }
}

/*
run:
 
numbers: 1 2 3 4 5 6 7 8 9 10

*/ 

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