static void Main() { // create a new ListBox and initialize ListBoxTest lbt = new ListBoxTest("Hello", "World"); // add a few strings lbt.Add("Proust"); lbt.Add("Faulkner"); lbt.Add("Mann"); lbt.Add("Hugo"); // test the access string subst = "Universe"; lbt[1] = subst; lbt["Hel"] = "GoodBye"; // lbt["xyz"] = "oops"; // access all the strings for (int i = 0; i < lbt.GetNumEntries(); i++) { Console.WriteLine("lbt[{0}]: {1}", i, lbt[i]); } }