Practice Method References (1.4) - Functional Programming in Java

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9 questions

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a method reference in Java?
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Think about how we can shorten lambda expressions.
Question 2.
How would you reference a static method?
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Recall the structure `ClassName::methodName`.
3Question 3.
What does a method reference use?
- ();
- ::
- <>
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It's a key part of the syntax.
4Question 4.
True or False: Method references can only be used for static methods.
- True
- False
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Remember the different types of method references.
Question 5.
Create a Java application that filters a list of integers, retaining only the even numbers using a method reference.
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Think about how `filter` can leverage a method reference for more clarity!
Question 6.
Implement a Java program that transforms a list of strings to their uppercase representation using method references.
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How might `String::toUpperCase` simplify the transformation?

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