juniorArrays
What is an array and how is it stored in memory?
Updated Apr 28, 2026
Short answer
An array is a collection of elements stored in contiguous memory locations.
Deep explanation
Arrays store elements of the same type in contiguous memory, allowing direct access via index. The address of each element is calculated using base address + index offset.
Real-world example
Storing daily temperatures for a week.
Common mistakes
- Assuming arrays can store mixed types efficiently.
Follow-up questions
- Why contiguous memory?
- What is random access?