1.3.1 - 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 for a simple greeter method.
💡 Hint: Remember it should have a single abstract method.
Write a short lambda expression that prints 'Hello World!'
💡 Hint: Think of the basic structure of a lambda.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is a functional interface?
💡 Hint: Remember the definition from our lessons.
True or False: Lambda expressions can have multiple statements?
💡 Hint: Review the syntax of lambda expressions we discussed.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Design a simple functional interface for a multiplier and implement it using a lambda expression that takes two integers and returns their product.
💡 Hint: Think about the structure of a functional interface.
Create a list of strings and use a Stream API operation to find and print all strings that contain the letter 'a'.
💡 Hint: Use 'filter' to narrow down the strings.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.