Java-8.md

Java 8 Topic Wise QUestions

Lambda in Java 8:

1. What is a lambda expression in Java 8?
2. What are the main benefits of using lambda expressions in Java 8?
3. Explain the syntax of a lambda expression in Java 8.
4. What is the relationship between functional interfaces and lambda expressions?
5. How do lambda expressions improve code readability and maintainability?
6. What are method references in Java 8 and how do they relate to lambda expressions?
7. What is the difference between a lambda expression and an anonymous class?
8. How do lambda expressions enable functional programming in Java?
9. Can lambda expressions be used with collections and streams? Explain with an example.
10. Explain the role of the@Functionallnterface annotation.
11. How does type inference work in lambda expressions?
12. Write a lambda expression to sort a list of strings in descending order.
13. How would you filter a list of integers to find all even numbers using lambda expressions and streams?
14. Demonstrate how to use a lambda expression to implement a custom comparator for sorting a list of objects.
15. Show how to use a lambda expression to print each element of a list.
16. Implement a lambda expression to convert a list of strings to uppercase.
17. Write a lambda expression to sum all elements in a list of integers.
18. Create a lambda expression to find the maximum value in a list of integers.
19. Demonstrate the use of a lambda expression to group elements in a list by a specific criterion.
20. Implement a lambda expression to find the first element in a stream that matches a given predicate.
21. Write a lambda expression to concatenate a list of strings with a delimiter.