Most Asked Java Interview Questions In 2022

Most Asked Java Interview Questions In 2022

This is the list of the most frequently asked Java Programming Interview Questions. These questions can be handy for you.

Most Asked Java Interview Questions In 2022

1. What is Java?
2. List the features of Java Programming language.
3. What are the differences between C++ and Java?
4. What are the various access specifiers for Java classes?
5. What’s the purpose of Static methods and static variables?
6. What do you understand by Java virtual machine?
7. What is data encapsulation and what’s its significance?
8. What are Loops in Java? What are three types of loops?
9. What is an infinite Loop? How infinite loop is declared?
10. What is the difference between an Inner Class and a Sub-Class?
11. What are the various access specifiers for Java classes?
12. What’s the purpose of Static methods and static variables?
13. What is the difference between double and float variables in Java?
14. What is the difference between continue and break statement?
15. What is a singleton class? Give a practical example of its usage.
16. Why Runnable Interface is used in Java?
17. What is the Final Keyword in Java? Give an example.
18. How can you generate random numbers in Java?
19. Can we have two methods in a class with the same name?
20. Why Strings in Java are called as Immutable?
21. What is default switch case? Give example.
22. Can main() method in Java can return any data?
23. What are Java Packages? What’s the significance of packages?
24. What’s the difference between an Abstract Class and Interface in Java?
25. Can we declare the main method of our class as private?
26. How an object is serialized in java?
27. When the constructor of a class is invoked?
28. Can a class have multiple constructors in Java?
29. What’s the purpose of using Break in each case of Switch Statement?
30. How we can execute any code even before main method?
31. Can a class be a super class and a sub-class at the same time? Give example.