Java 8: Conceptual Questions
Conceptual Questions 1. What are the main features introduced in Java 8? 2. What are functional interfaces? 3. Explain Stream and its key methods. 4. What is the difference between map() and flatMap()? 5. What is Optional in Java 8? 6. How do default methods work in interfaces? 7. What is the purpose of Collectors? 8. How does the Date and … Read more