An array is a fundamental data structure in programming that stores a collection of elements, typically of the same type, in a contiguous block of memory. It provides a way to efficiently access and manipulate a group of items. Key Characteristics of Arrays: Ordered Collection: Arrays maintain the order of elements based on their indices, starting from 0 for the first element. Fixed Size: In many programming languages, arrays have a fixed size, meaning you must specify the number of elements it

What is an Array? A Complete Guide With Examples

Useful Array Methods

Daniel on Instagram: "ArrayLists stop being confusing the moment you realize they’re not “magic arrays” — they’re a different tool with different rules. This week you learned how lists grow, how .add() and .remove() actually shift data, and why most ArrayList bugs come from ignoring what’s happening under the hood. Once you understand the movement, ArrayLists become predictable — and predictable code is how you stop losing points on FRQs. Follow for more Java clarity, and DM for AP Computer Scie

What is Array in Data Structure? Types & Syntax