Java 8 Interview Questions for Freshers
Java 8 Interview Questions for Freshers
1.
Describe the newly added features in Java 8?
2.
In which programming paradigm Java 8 falls?
3.
What are the significant advantages of Java 8?
4.
What is MetaSpace? How does it differ from PermGen?
5.
What are functional or SAM interfaces?
6.
Can a functional interface extend/inherit another interface?
7.
What is the default method, and why is it required?
8.
What are static methods in Interfaces?
9.
What are some standard Java pre-defined functional interfaces?
10.
What are the various categories of pre-defined function interfaces?
11.
What is the lambda expression in Java and How does a lambda expression relate to a functional interface?
Java 8 Interview Questions for Experienced
12.
What is the basic structure/syntax of a lambda expression?
13.
What are the features of a lambda expression?
14.
What is a type interface?
15.
What are the types and common ways to use lambda expressions?
16.
In Java 8, what is Method Reference?
17.
What does the String::ValueOf expression mean?
18.
What is an Optional class?
19.
What are the advantages of using the Optional class?
20.
What are Java 8 streams?
21.
What are the main components of a Stream?
22.
What are the sources of data objects a Stream can process?
23.
What are Intermediate and Terminal operations?
24.
What are the most commonly used Intermediate operations?
25.
What is the stateful intermediate operation? Give some examples of stateful intermediate operations.
26.
What is the most common type of Terminal operations?
27.
What is the difference between findFirst() and findAny()?
28.
How are Collections different from Stream?
29.
What is the feature of the new Date and Time API in Java 8?
30.
What are the important packages for the new Data and Time API?
31.
Explain with example, LocalDate, LocalTime, and LocalDateTime APIs.
32.
Define Nashorn in Java 8
33.
What is the use of JJS in Java 8?
