Java ☕ Arrays and Array Lists

The video tutorial introduces arrays and ArrayLists in Java, explaining their differences and uses. It covers how to declare, access, and modify arrays, and introduces ArrayLists as a more flexible alternative. The tutorial includes exercises to practice using arrays and ArrayLists, demonstrating how to print specific elements and record data over time. Key concepts include data storage, array indexing, and ArrayList methods.

What is the purpose of an array in Java?

How do you access the first item in an array?

What happens if you try to add more elements to an array after it has been created?

What is an ArrayList and how does it differ from a regular array?

Explain the significance of wrapper classes in Java.

What methods can you use to manipulate an ArrayList?

What is the purpose of using a for loop when working with arrays?

How can you check if an age is below 18 using an array?

How do you print all elements of an ArrayList?

Describe how to create an ArrayList for storing double values.