KeyValuePair
KeyValuePair is a basic data structure that stores two related items: a key and its associated value. It is used to model associations in dictionaries, maps, and other data collections where data is looked up by a key. In many languages the key identifies the value within a container, while the value holds the stored data.
In C#, KeyValuePair<TKey, TValue> is a value type defined in System.Collections.Generic. It represents a single association
Java uses Map.Entry<K, V> as the corresponding concept. Entries are provided by map implementations and typically
Key-value stores and databases use the broader term to describe storage models where data is addressed by
Usage and properties: Keys are unique within a collection, so a KeyValuePair represents a single mapping. They