C# Collections

Arrays

Arrays are good for retrieving and updating values, but not so good for finding, adding, and deleting values. 8 steps

• 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. 11 steps

• Lists 7:14
• More List Operations 4:45
• Lists 4 questions
• Searching Lists 3:32
• Lists 1 objective
• Sorting Lists 12:01
• 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. 11 steps

• 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