Lesson 5 - Dictionaries and sets in C# .NET
C# .NET Collections and LINQ Dictionaries and sets in C# .NET
In the previous lesson, Multidimentional arrays in C# .NET, we introduced, tried out linked lists, and then made a detour over to multi-dimensional arrays in C# .NET. Today's tutorial is going to be about dictionaries and sets.
Dictionaries
The idea of a dictionary is there to facilitate accessing elements using a key. This concept works the same as with an array where the keys (indexes) are numeric. The dictionary allows us to index using any data type, e.g. a string. We then access the elements of the collection using strings. It works the same as with an actual dictionary where the string word is associated with its definition, translation, synonyms, etc.
The data in this collection is stored in a special way known as hashing. This approach allows us to
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In this tutorial, we'll introduce dictionaries and sets. We'll describe the Dictionary and HashSet classes and try them out on a few examples.
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