Complete Java SE 8 Developer Bootcamp - Iterator

The video tutorial explains the concept of iterators in Java, focusing on their use in traversing collections. It covers the basic methods of the iterator interface, such as hasNext, next, and remove, and introduces the list iterator for bidirectional traversal. The tutorial also addresses common warnings related to raw types and emphasizes the importance of parameterizing collections. Practical examples demonstrate how to obtain and use iterators and list iterators, highlighting their differences and specific use cases.

What does the method hasNext() do in the context of an iterator?

Explain the significance of parameterizing an ArrayList.