22.4 - Built-in Functional Interfaces (java.util.function)
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Practice Questions
Test your understanding with targeted questions
Define what a Predicate
💡 Hint: Think of it as a check or condition.
What is the purpose of a Supplier
💡 Hint: Consider it as a source of values.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a Predicate
💡 Hint: Think about its main purpose in logic.
True or False: A Supplier
💡 Hint: Consider how it generates value.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Write a series of lambda expressions that demonstrate the use of Predicate, Function, and Consumer on a list of Strings.
💡 Hint: Consider how you can leverage all interfaces in a single operation.
Design a BinaryOperator that combines two products based on price, sorting them and returning the more expensive one.
💡 Hint: Consider the comparison logic that determines which product is more expensive.
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