Unit 7: Arrays and Indexed Data

Repeated variables stop scaling quickly.

int score1;
int score2;
int score3;

An array gives related values a single structure with a fixed length and indexed positions.

This unit focuses on the mental model behind arrays: ordered elements, zero-based indexes, fixed capacity, bounds, traversal, and aggregate calculations. The goal is not to memorize bracket syntax. It is to understand when indexed storage matches the problem and what can go wrong at its boundaries.