static void Main(string[] args) { Folder moives = new Folder("Moives"); Folder hindi = new Folder("Hindi"); Folder english = new Folder("English"); Folder comedy = new Folder("Comedy"); File abc = new File("ABC", "MP4", 100); File xyz = new File("XYZ", "AVI", 200); File dhamal = new File("Dhamal", "MP4", 1000); File endgame = new File("Endgame", "MP4", 2000); File lmn = new File("LMN", "AVI", 500); comedy.AddItems(lmn); english.AddItems(endgame); hindi.AddItems(dhamal); moives.AddItems(abc); moives.AddItems(xyz); moives.AddItems(hindi); moives.AddItems(english); moives.AddItems(comedy); moives.AddItems(new File("Jhon", "MP4", 5000)); moives.Display(0); }