Step 1. What Is an Array
Arrays. Indexes. Create, write, and read. Iteration and search.
Step 2. Iteration and Search
Exercises on array iteration and element search.
Step 3. Creating and Changing Arrays
Exercises on creating, changing, and filling arrays.
Step 4. In-Place Operations
In-place operations. Changing arrays in place without extra memory.
Step 5. Advanced Level
Advanced array exercises.

Step 1. Array Basics

In the first step you will learn what an array and an index are, and how data is stored and processed as sequences. You will learn to create arrays, read and change their elements, and what errors can happen with incorrect index use. You will also master iterating elements and searching data inside an array.

Covered topics:

what an array is and why it is needed
the concept of an index and accessing array elements
reading elements by index
writing values by index
handling out-of-bounds errors (IndexOutOfRangeException)
creating an array
iterating elements with a loop
searching values in an array

Step 1. What Is an Array

Prerequisites
Introduction
Reading Array Elements
Writing Array Elements
Creating an Array
Iterating Over an Array
Searching for Elements