Practice Method References And Constructor References (22.10) - Lambda Expressions and Functional Interfaces

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9 questions

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

Question 1.
What is the syntax for a method reference?
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Think about how you would normally call a method.
Question 2.
What purpose do constructor references serve?
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It's related to creating new objects.
3Question 3.
What is the primary purpose of a method reference?
- To instantiate classes
- To refer to methods directly
- To create lambdas
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Think about what method references do.
4Question 4.
True or False: A constructor reference uses the syntax ClassName::methodName.
- True
- False
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Consider how constructors are instantiated.
Question 5.
Given a list of strings, use a method reference to print them all to the console.
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Remember to use the correct method reference syntax.
Question 6.
Create a constructor reference for a HashMap and assign it to a Supplier.
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Think about how to instantiate new maps.

5 more questions in this section. Enroll free to practise them all.