App Class using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Day7 { class App { //생성자 public App() { Console.WriteLine("App"); Inventory inventory = new Inventory(5); inventory.PrintAllItems(); inventory.AddItem(new Item("장검")); inventory.PrintAllItems(); inventory.AddItem(new Item("장검")); //이미 장검이 있습니다. inventory.PrintAl..