Practice Enhanced Iterators - 4.4.1 | 4. Java Collections Framework (Advanced | Advance Programming In Java
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Enhanced Iterators

4.4.1 - Enhanced Iterators

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does a basic Iterator allow you to do?

💡 Hint: Think about the direction and the ability to access elements one at a time.

Question 2 Easy

Name a method provided by ListIterator that is not available in Iterator.

💡 Hint: Consider the capabilities that allow changing the collection.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What method can be used to traverse a collection backward using ListIterator?

next()
previous()
remove()

💡 Hint: Think about movement in both directions offered by ListIterator.

Question 2

True or False: An Iterator can modify the collection while iterating.

True
False

💡 Hint: Recall the basic capabilities of Iterator.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Write a method that uses a Spliterator to take a List of integers and find the sum of even numbers in parallel.

💡 Hint: Think about how you can leverage the capabilities of Spliterator to perform operations in parallel.

Challenge 2 Hard

Create a ListIterator to insert specific values into a LinkedList at certain positions and print the updated list.

💡 Hint: Consider how ListIterator allows for adding elements during traversal.

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