queueProvides Queue data type
class queue
This class does not inherit to any class.
This class does not have attributes.
construct() — The constructor. Create an instance of class queue getsize() — Get the size of the Queue isempty() — Check whether the size of the Queue is empty or not makeempty() — Make the Queue empty pop() — Retrieve and remove the head of the Queue, or return nothing if the Queue is empty push() — Insert a new element into the Queue toarray() — Create an array containing all of the elements in the Queue top() — Retrieve but not remove the head of the Queue, or return nothing if the Queue is empty