ArrayList Understanding ArrayList and features of the method 1️⃣ Why Use ArrayList Instead of an Array? Dynamic Sizing – Unlike arrays, ArrayList can grow and shrink automatically. Built-in Methods – ...

Why is ArrayList Important? 1️⃣ Dynamic Resizing – Unlike arrays, ArrayList can grow and shrink automatically. 2️⃣ Efficient Retrieval (O (1) for get ()) – Direct access using indexes is very fast.