Complete Java SE 8 Developer Bootcamp - Collections

The video tutorial explains the Java ArrayList, a dynamic collection similar to arrays but resizable. It covers creating and using ArrayLists, adding and removing elements, and checking contents. The tutorial highlights the importance of overriding equals and hashCode methods for collections and discusses the collection interface's role in enabling polymorphism, making code flexible and interchangeable.

What is the purpose of the 'contains' method in an array list?

Why is it important to override the equals method when using objects in a collection?

What happens when you call the clear method on an array list?