Collections in C# | C sharp Collections | .NET Collections | AbFirstTech
Collections standardize the way of which the objects are handled by your program. In other words, it contains a set of classes to contain
Arrays are useful when you have a fixed number of elements, and you need to access them by their indices.
Lists are flexible arrays; they are best when you have an unknown number of elements to store, and you need to perform various operations like adding or removing items.
Dictionaries are great when you need to associate keys with values and retrieve values quickly based on their keys.
Sets, specifically HashSets, are beneficial when you need to ensure that all elements are unique and need to check whether an element is in the collection quickly.
Queues and Stacks are used when you need special kinds of insertion and retrieval orders (FIFO for queues and LIFO for stacks)