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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the basic syntax of a lambda expression?
💡 Hint: Think about the format: (parameters) -> code.
Question 2
Easy
Give an example of a functional interface in Java.
💡 Hint: Think of something that can be executed.
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 does a lambda expression in Java do?
- Defines a new data structure
- Implements functional interfaces
- Creates variables in Java
💡 Hint: Consider what you use lambda expressions for.
Question 2
True or False: A Lambda expression can have multiple abstract methods.
- True
- False
💡 Hint: Remember the definition of a functional interface.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a lambda expression that takes a list of integers and returns a list of their squares.
💡 Hint: Think about how to transform each element in the stream.
Question 2
Create a functional interface and implement it using a lambda expression.
💡 Hint: Define the interface with one method, and then implement it succinctly.
Challenge and get performance evaluation