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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a lambda expression?
💡 Hint: Think about how it can implement a functional interface.
Question 2
Easy
How many methods can a lambda expression override?
💡 Hint: Consider the definition of functional interfaces.
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
Which of the following statements is true?
- Lambda expressions require new class creation.
- Anonymous classes can override multiple methods.
- Both require explicit variable declaration.
💡 Hint: Consider method overriding capabilities.
Question 2
True or False: this in a lambda expression refers to the anonymous class instance.
- True
- False
💡 Hint: Think about scope of `this`.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a functional interface with more than one method, can a lambda implement it? Explain your reasoning.
💡 Hint: Recall the definition of functional interfaces.
Question 2
Consider a scenario where performance is critical. Which would you choose, a lambda or an anonymous class? Justify your choice.
💡 Hint: Think of how each affects performance.
Challenge and get performance evaluation