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A set of questions and answers on core Java concepts such as classes, objects, inheritance, polymorphism, and concurrency.
Practice these questions and get feedbacks! It will help you improve your answer.
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1. What is polymorphism?
2. What is encapsulation?
3. What is a deadlock?
4. What is the difference between a class and an object?
5. What is a synchronized method?
6. What is inheritance?
7. What is an interface?
8. What is a thread?
9. What is a package?
10. What is an abstract class?