Creating folder and sub folder programmatically in SharePoint

public static void createFolderSubFolder()

        {

            string libraryName = "Test";

            string folderName = "Folder";

            string siteUrl = "http://myserver03:8989/abc";

            try

            {

                SPSecurity.RunWithElevatedPrivileges(delegate()

              

                    using (SPSite osite = newSPSite("http://myserver03:8989/abc"))

                    {

                        using (SPWeb oweb = osite.OpenWeb())

                        {

                            SPFolderCollection folderCollection = oweb.Folders;

                            string newFolderUrl = siteUrl + "/" + libraryName + "/" + folderName;

 

                            SPFolder newFolder = folderCollection.Add(newFolderUrl);

 

                            Console.WriteLine("Folder created");

 

                            string secondFolderName = "subFolder";

                            string newSubFolderUrl = newFolderUrl + "/" + secondFolderName + "/";

 

                            SPFolder newSubFolder = folderCollection.Add(newSubFolderUrl);

                            Console.WriteLine("SubFolder created");

                            Console.ReadLine();

                        }

                    }

                });

 

            }

 

            catch (Exception ex)

            {

                throw ex;

            }

 

        }

Please note : Please check out my blog on how to create a library,content type,columns,subsite programmatically.