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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the forEach method do in a collection?
💡 Hint: Think about actions performed on each item.
Question 2
Easy
What does the removeIf method do?
💡 Hint: Focus on conditions that trigger removal.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What method allows you to iterate over elements in a collection and execute an action?
- forEach
- map
- stream
💡 Hint: Focus on iteration methods.
Question 2
True or False: The removeIf method can remove items from a collection based on a predicate defined in a lambda expression.
- True
- False
💡 Hint: Think about the ability to filter items.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a Java program that initializes a list of random integers between 1 and 100, removes all even numbers and sorts the list in descending order. Print the final list.
💡 Hint: Think about how to define your conditions for removing and sorting.
Question 2
Discuss how lambda expressions impact the readability of code compared to traditional loops. Provide an example for clarity.
💡 Hint: Consider how the structure of your code changes.
Challenge and get performance evaluation