string myString = "hello world";
File.WriteAllText("myfile.txt", "hello world");
SqlConnection con = new SqlConnection("Data Source=myServerAddress;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword;");
Response.Write("hello world");
ListPackage/Library: System.Collections.Genericnumbers = new List { 1, 2, 3, 4 };