22 - Lambda Expressions and Functional Interfaces
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Practice Questions
Test your understanding with targeted questions
What is a lambda expression?
💡 Hint: Think of it as a shortcut for writing a function.
Provide a simple example of a lambda expression.
💡 Hint: Consider what this lambda does without parameters.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a lambda expression?
💡 Hint: Remember how it differs from regular named functions.
True or False: A functional interface can have multiple abstract methods.
💡 Hint: Think about the definition of a functional interface.
3 more questions available
Challenge Problems
Push your limits with advanced challenges
Create a custom functional interface named 'StringProcessor' that processes a string and returns its length using a lambda expression.
💡 Hint: What function processes and gives an output based on a string?
Write a program that filters out all strings starting with the letter 'A' from a list of strings using lambda expressions.
💡 Hint: Consider how you can identify and remove items based on a condition.
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