Ready to drink Ready to drink Ready to drink (often known as RTD) packaged beverages are those sold in a prepared form, ready for consumption. Examples include iced tea (prepared using tea leaves and fruit juice) and alcopops (prepared by mixing alcoholic beverages with fruit juices or soft drinks). There are different types of RTD beverages, each serves a different purpose, the most notable ones are: Alcopops are mainly ready made alcoholic cocktails that are carbonated and bottled under various brand names. Alcopops are the most commonly consumed type of RTD in the world after iced tea. It is also important to note
Is-a and type(type(a)) is a metatype. While as distributed all types have the same metatype (PyType_Type, which is also its own metatype), this is not a requirement. The type of classic classes, known as types.ClassType, can also be considered a distinct metatype. In Java, is-a relation between the type parameters of one class or interface and the type parameters of another are determined by the extends and implements clauses. Using the Collections classes, ArrayList<E> implements List<E>, and List<E> extends Collection<E>. So ArrayList<String> is a subtype of List<String>, which is a subtype of Collection<String>. The subtyping relationship is preserved between the types