Practice Summary - 5.12 | 5. Java Streams and Lambda Expressions | Advance Programming In Java
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Summary

5.12 - Summary

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a Java Stream?

💡 Hint: Think about how streams process collections.

Question 2 Easy

Define a Lambda Expression.

💡 Hint: Focus on the functional interface aspect.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is one characteristic of a Java Stream?

It stores data
It is a data structure
It does not store data

💡 Hint: Think about the purpose of streams.

Question 2

Lambda Expressions are primarily used for which purpose in Java?

To define data types
To implement functional interfaces
To create classes

💡 Hint: Consider what a functional interface is.

3 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a list of integers, write a method that uses streams to return the sum of all even numbers.

💡 Hint: Think about filtering and then reducing.

Challenge 2 Hard

Create a lambda expression that checks if a string contains at least one vowel.

💡 Hint: Consider how string matching works.

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