Practice Lambda Expressions And Functional Interfaces (22) - Lambda Expressions and Functional Interfaces

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11 questions

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6 sample questions

Question 1.
What is a lambda expression?
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Think of it as a shortcut for writing a function.
Question 2.
Provide a simple example of a lambda expression.
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Consider what this lambda does without parameters.
3Question 3.
What is a lambda expression?
- A named function
- An anonymous function
- A regular function
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Remember how it differs from regular named functions.
4Question 4.
True or False: A functional interface can have multiple abstract methods.
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Think about the definition of a functional interface.
Question 5.
Create a custom functional interface named 'StringProcessor' that processes a string and returns its length using a lambda expression.
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What function processes and gives an output based on a string?
Question 6.
Write a program that filters out all strings starting with the letter 'A' from a list of strings using lambda expressions.
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Consider how you can identify and remove items based on a condition.

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