TCS java interview questions for 2 years experience — Top 20
For a TCS Java interview targeting candidates with 2 years of experience, questions may cover a range of topics including core Java concepts, object-oriented programming principles, data structures, algorithms, and practical programming scenarios. Here’s a list of potential interview questions:
1. Explain the difference between abstraction and encapsulation in Java.
2. What are the advantages of using interfaces over abstract classes in Java?
3. How does inheritance work in Java? Provide an example.
4. Explain the concept of method overriding and method overloading in Java.
5. What is the difference between checked and unchecked exceptions in Java? Give examples.
6. How does garbage collection work in Java? Discuss different types of garbage collectors.
7. Explain the importance of the “final” keyword in Java. Provide examples of its usage.
8. What are the different access modifiers in Java, and how do they differ?
9. Discuss the concept of multithreading in Java. How would you create and manage threads?
10. Describe the differences between ArrayList and LinkedList in Java. When would you use each?
11. Explain the HashMap and TreeMap classes in Java. How do they differ in terms of performance and ordering?
12. What is the purpose of the “synchronized” keyword in Java? How does it help with thread safety?
13. Discuss the principles of object-oriented programming and their significance in Java.
14. Explain the concept of polymorphism in Java. Provide examples of runtime and compile-time polymorphism.
15. How would you handle exceptions effectively in Java programs? Discuss best practices.
16. Describe the differences between static and instance variables/methods in Java.
17. What are the advantages and disadvantages of using Java for enterprise-level development?
18. Discuss the importance of design patterns in Java development. Provide examples of commonly used design patterns.
19. How do you ensure thread safety in Java applications? Discuss synchronization techniques.
20. Describe your experience with Spring Framework and Hibernate ORM. How have you used them in your projects?
These questions cover a range of topics commonly assessed in Java interviews, and candidates with 2 years of experience should be prepared to discuss both theoretical concepts and practical implementation scenarios. It’s also important to review the specifics of TCS’s technology stack and project requirements to tailor responses accordingly.
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