To Develop distributed applications as developer we have to work with group of related objects which has common task and common goal. To gather such objects we need collection. We can collect similar type of objects using Arrays and Advance Collection
Arrays are more useful when we want work with fixed number of elements and of same type but Advance collection have more flexibility over Arrays. These classes are more specialized and have benefit of dynamic memory allocation without the limitation of size. We can store and retrieve the data randomly.
These classes are available in the form of Stack, Queue, Hash Table, Sorted List. Collection classes implement with common interfaces like IEnumerable, ICollection, IList, IDictionary. Collection classes are variable with non-generic and generic form. If you want work with generic class the implement System.Collections.Generic and for non-generic classes use System. Collections.
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