In C#, collection represents group of objects. By the help of collections, we can perform various operations on objects such as
In sort, all the data structure work can be performed by C# collections.
We can store objects in array or collection. Collection has advantage over array. Array has size limit but objects stored in collection can grow or shrink dynamically.
Types of Collections in C#
There are 3 ways to work with collections. The three namespaces are given below:
1) System.Collections.Generic classes
The System.Collections.Generic namespace has following classes:
2) System.Collections classes
These classes are legacy. It is suggested now to use System.Collections.Generic classes. The System.Collections namespace has following classes:
3) System.Collections.Concurrent classes
The System.Collections.Concurrent namespace provides classes for thread-safe operations. Now multiple threads will not create problem for accessing the collection items.
The System.Collections.Concurrent namespace has following classes:
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