@startuml
annotation java.lang.Override
class Main
class Purchase
class Shop
class ShoppingBasket
class Storehouse
class java.util.HashMap
class java.util.Map
class java.util.Scanner
class java.util.Set
Main ..> java.util.Scanner
Purchase ..> java.lang.Override
Shop ..> java.util.Scanner
ShoppingBasket ..> java.util.HashMap
ShoppingBasket ..> java.util.Map
Storehouse ..> java.util.HashMap
Storehouse ..> java.util.Map
Storehouse ..> java.util.Set
@enduml