ListofT

ListOfT is a generic container type designed to hold a sequence of elements of a single type T. The T stands for a type parameter and allows the same data structure to store values of any type while preserving type safety. In languages with generics, ListOfT is typically a mutable, resizable sequence with random access.

Design and usage: A ListOfT provides operations such as append or add, insert, remove, contains, size or count, clear, and index-based access. The common property is that elements can be retrieved by index in constant time. The underlying implementation is commonly a dynamic array that grows as elements are added, though other implementations like linked lists are possible in different languages.

Typing and constraints: T can be any valid type in the language, subject to constraints (for example, T might be constrained to be comparable). This allows compile-time checking that only elements of type T are stored.

Example (pseudocode): ListOfT<int> scores = new ListOfT<int>(); scores.add(95); scores.add(88); int best = scores[0];

Comparison with similar types: ListOfT is often functionally equivalent to List<T> in languages that use such naming conventions. The exact behavior depends on the language's standard library: mutability, concurrency semantics, and copy-on-write rules.

See also: List, Array, LinkedList, Generics, Type parameter, Mutable container.