Search results
Results From The WOW.Com Content Network
Reference counting. In computer science, reference counting is a programming technique of storing the number of references, pointers, or handles to a resource, such as an object, a block of memory, disk space, and others. In garbage collection algorithms, reference counts may be used to deallocate objects that are no longer needed.
Multiple dispatch or multimethods is a feature of some programming languages in which a function or method can be dynamically dispatched based on the run-time (dynamic) type or, in the more general case, some other attribute of more than one of its arguments. [1] This is a generalization of single-dispatch polymorphism where a function or ...
Multiset. In mathematics, a multiset (or bag, or mset) is a modification of the concept of a set that, unlike a set, [1] allows for multiple instances for each of its elements. The number of instances given for each element is called the multiplicity of that element in the multiset.
O ( n + k ) {\displaystyle O (n+k)} In computer science, counting sort is an algorithm for sorting a collection of objects according to keys that are small positive integers; that is, it is an integer sorting algorithm. It operates by counting the number of objects that possess distinct key values, and applying prefix sum on those counts to ...
It should be possible to define a new operation for (some) classes of an object structure without changing the classes. When new operations are needed frequently and the object structure consists of many unrelated classes, it's inflexible to add new subclasses each time a new operation is required because "[..] distributing all these operations across the various node classes leads to a system ...
t. e. In programming language theory and type theory, polymorphism is the use of a single symbol to represent multiple different types. [ 1 ] In object-oriented programming, polymorphism is the provision of a single interface to entities of different types. [ 2 ] The concept is borrowed from a principle in biology where an organism or species ...
In object-oriented programming, a factory is an object for creating other objects; formally, it is a function or method that returns objects of a varying prototype or class [1] from some method call, which is assumed to be "new". [a] More broadly, a subroutine that returns a "new" object may be referred to as a "factory", as in factory method ...
An iterator allows a consumer to process each element of a collection while isolating the consumer from the internal structure of the collection. [ 2 ] The collection can store elements in any manner while the consumer can access them as a sequence. In object-oriented programming, an iterator class is usually designed in tight coordination with ...