4.4 - Iteration and Bulk Operations
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Practice Questions
Test your understanding with targeted questions
What does an Iterator do?
💡 Hint: Think about how you move through a line of people.
What operation would you use to print each element in a list?
💡 Hint: Remember the action to perform for each item.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the removeIf method do in a collection?
💡 Hint: Think about filtering out elements.
True or False: The ListIterator can only traverse a list in one direction.
💡 Hint: Consider how people can move in a room.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Create a custom class and demonstrate the use of an Iterator to traverse through a collection of objects of that class, printing their properties.
💡 Hint: Focus on object-oriented design.
Given a list of integers, use the replaceAll and removeIf methods to first delete all even numbers and then square all the remaining odd numbers.
💡 Hint: Think about filtering and transforming in one go.
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