C# Collections Course

Arrays

Arrays are good for retrieving and updating values, but not so good for finding, adding, and deleting values.

• Welcome

  4:04

• Arrays

  4:14

• Jagged Arrays

  9:47

• Jagged Arrays

  1 objective

• Multidimensional Arrays

  7:34

• Multidimensional Arrays

  1 objective

• Disadvantages of Arrays

  5:53

• Arrays

  2 questions

Lists

Internally, System.Generic.Collections.List is an array, but it's much easier to work with.

• Lists

  7:14

• More List Operations

  4:45

• Lists

  4 questions

• Searching Lists

  3:32

• Lists

  1 objective

• Sorting Lists

  11:49

• Searching Sorted Lists

  6:10

• Collection Interfaces

  5:06

• Collection Interfaces

  4 questions

• Read-only Collection Interfaces

  5:12

• Read-only Collection Interfaces

  1 objective

Sets and Dictionaries

Sets and dictionaries are fast at finding, retrieving, and removing items. They're unordered and rely on object hash codes.

• HashSet

  5:29

• Hashing

  6:48

• GetHashCode and Equals Methods

  4:03

• Hash Codes and Object Equality

  5 questions

• Dictionary

  11:29

• Dictionary

  1 objective

• Dictionary Keys and Values

  6:06

• Using Dictionaries

  2 objectives

• The System.Collections.Generic Namespace

  3:00

• The System.Collections Namespace

  3:24

• Other Collection Types

  4 questions