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Practice Questions
Test your understanding with targeted questions related to the topic.
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.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
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.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
Create a lambda expression that checks if a string contains at least one vowel.
💡 Hint: Consider how string matching works.
Challenge and get performance evaluation