1.2.1 - Syntax
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
Define a functional interface and give an example in Java.
💡 Hint: Look for interfaces with a single method.
What does a lambda expression allow you to do?
💡 Hint: Think of how it simplifies code!
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is a functional interface?
💡 Hint: Think about the definition of functional interfaces.
True or False: Lambda expressions can have multiple parameters.
💡 Hint: Recall the syntax of lambda expressions.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Create a functional interface to calculate the area of a rectangle and demonstrate its use using a lambda expression.
💡 Hint: Consider how parameters are passed to lambda expressions.
Write a method using the Stream API to find the largest number in a list of integers using functional operations.
💡 Hint: Remember that `reduce` allows you to aggregate values.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.