22.1 - Functional Programming in Java
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Practice Questions
Test your understanding with targeted questions
What is a lambda expression?
💡 Hint: Think about the syntax and purpose of lambda expressions.
Define a functional interface.
💡 Hint: Recall the main characteristic of a functional interface.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a lambda expression primarily used for in Java?
💡 Hint: Consider what happens when you use a lambda expression.
True or False: A functional interface can contain multiple abstract methods.
💡 Hint: Recall the definition of functional interfaces.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Create a functional interface with a method that calculates the area of a rectangle and implement it using a lambda expression.
💡 Hint: Remember to define both the interface and the lambda implementation.
Explain the role of 'final' and 'effectively final' in lambda expressions with an example.
💡 Hint: Consider how variable scope works in lambda expressions.
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