Java Most Importan 30 Interview Questions

Java Most Importan 30 Interview Questions 

1. What is Java?
2. What are the features of Java?
3. What is the difference between JDK, JRE, and JVM?
4. What are the basic data types in Java?
5. What is the difference between a class and an object?
6. What is inheritance in Java?
7. What is polymorphism in Java?
8. What is abstraction in Java?
9. What is encapsulation in Java?
10. What is a constructor in Java?
11. What is an interface in Java?
12. What is a package in Java?
13. What is a thread in Java?
14. What is synchronization in Java?
15. What is the difference between ArrayList and LinkedList?
16. What is the difference between a HashSet and a TreeSet?
17. What is a HashMap in Java?
18. What is the difference between a checked and unchecked exception in Java?
19. What is the difference between final, finally, and finalize in Java?
20. What is the use of the keyword "static" in Java?
21. What is the difference between an abstract class and an interface in Java?
22. What is the difference between method overloading and method overriding in Java?
23. What is the use of the "this" keyword in Java?
24. What is the use of the "super" keyword in Java?
25. What is the difference between StringBuffer and StringBuilder in Java?
26. What is the difference between a stack and a queue in Java?
27. What is the difference between a while and do-while loop in Java?
28. What is the use of the keyword "volatile" in Java?
29. What is the difference between the equals() method and the == operator in Java?
30. What is the difference between a private and a protected method in Java?

These are just a few examples of the many Java interview questions that you might encounter. It's important to have a good understanding of Java concepts and syntax before going for an interview.