Change former path to custom path keeping the filename and create a file using stream writer in c#

Question

I am creating multiple files using StreamWriter, I want these files to be created in a specific directory

StreamWriter w = new StreamWriter(File.Create(name + ".txt"));
w.WriteLine(name);
w.Close();

here name is variable that is used as file name and also to be written in that file, but my problem is I want this file to be created in specific directory.

Answer 1

        FileStream fileStream = null;
        StreamWriter writer = null;
        try
        {

           string folderPath = @"D:\SpecificDirecory\";
           string path =  Path.Combine(folderPath , "fileName.txt");

           if (!Directory.Exists(folderPath))
           {
               Directory.CreateDirectory(folderPath);
           }

           fileStream = new FileStream(@path, FileMode.Create);
           writer = new StreamWriter(fileStream);
           writer.Write(fileBuilder.ToString());            
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            writer.Close();
            fileStream.Close();
        }