Hogwarts the Hogwarts Express that students take at the start of each school year. Students board the train from the also fictional and hidden Platform 9¾ at King's Cross station in London. The train arrives near Hogwarts, some time after nightfall. From there, first-year students are accompanied by the "Keeper of the Keys, Game and Grounds" (which was Hagrid during the first novel) to small boats, which magically sail across the lake and get them near the entrance of Hogwarts. The older students ride up to the castle in carriages pulled by creatures called Thestrals. When the first-year students initially arrive
Poltergeist (computer programming) Command pattern, and the programmer anticipates separating the two phases. However, this more complex architecture may actually never materialize. Poltergeists should not be confused with long-lived, state-bearing objects of a pattern such as Model-view-controller, or tier-separating patterns such as Business-Delegate. To remove a poltergeist, delete the class and insert its functionality in the invoked class, possibly by inheritance or as a mixin. Poltergeist (computer programming) In computer programming, a poltergeist (or gypsy wagon) is a short-lived, typically stateless object used to perform initialization or to invoke methods in another, more permanent class. It is considered an anti-pattern. The original definition