Java 8 interview questions ?

 

                                    Java 8  interview  Question 

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1.     What   are  the new features  of  Java 8 ?

2.     What is function interface. Give an example?

3. What is main characteristic of the lambda expression?

4. What  is new features  added in the   Date and time ?

5. How we can create functional interface and can we more than one method 

       in the Functional Interface?

6. What  is main benefits of the  java.util.stream ?

7. What  is main difference between  Collection and Stream ? 

8. What   is   Intermediate and Terminal operation in  

        stream? 

9. What   are the methods for the   Intermediate operation  In   java.util.stream?

10. Explain stream() ,  map() and  filter () methods ?

11. What  is  main  work  of  map()  and  filter()?

12. What predicate interface? What is difference predicate and function?

13. What is difference Iterator and  Spliterator ?

14. What is difference between map() and flateMap()?

15.   What is Hotspot ? what new changes in JVM java8.

16. What   is  MetaSapace   in  java 8?

17. Why   Java 8 jvm remove  premGen memory space?

18. what is the optional interface in java 8.

19.  What is a predicate and how many types of it?

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