Welcome to today's lesson! We're diving into four powerful concepts in Java: ArrayList, interfaces, abstract classes, and BigDecimal. These tools are like the Swiss Army knives of Java programming – ...

In this assignment, you will implement a class called CustomIntegerArrayList. This class represents a fancy ArrayList that stores integers and supports additional operations not included in Java's ...

A Collection in simple terms means when a group of similar things, often a group created by someone is known as a collection. A collection when collected works like a container – it groups multiple ...

It's not terribly clean, but you could use indexOf() and check if it returns -1. Better than breaking out a loop.

So far, we have found ourselves using arrays to store most of our data. However, we have also noticed some limitations with arrays: You need to know the maximum size when you allocate it. You can’t ...