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Technical questions: 1. Is java 100% object oriented? Justify 2. What do you understand by string pool? 3. Explain method overriding with example. 4. What is overloading? What is method overloading and operator overloading? 5. Can constructors be overridden? (No) why? 6. What is threading? 7. What is multithreading? 8. There r lot of advantages of multithreading, but what could be the possible disadvantages. 9. We have a database how would you make it search efficient (ans-indexing) more questions on indexing 10. Some advanced java concepts, I don't remember. 11. What's conflict management? How would you manage it. 12. Singleton class 13. Collection API 14. What is the superclass of any java program? (Ans, object class) More questions on object class, like what methods are included in object class. 15. What is an API, give examples 16. In java can strings b immutable? Explain 17. Difference between string buffer, string pool, string builder. 18. Tell me about JIT (just in time interpreter) Why is it used? 19. Questions on static keyword. 20. Final keyword. 21. New technology you're recently come across. 22. Interfaces in java 23. How would you store large amount of data in your database, and how would you retrieve it efficiently? 24. What's synchronisation and why is it important 25. What is an infinite loop 26. Can we compare strings using equality == operator? 27. Access specifiers.
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Barclays Analysis III

Interviewed at Barclays

4★
Aug 21, 2019

Technical questions: 1. Is java 100% object oriented? Justify 2. What do you understand by string pool? 3. Explain method overriding with example. 4. What is overloading? What is method overloading and operator overloading? 5. Can constructors be overridden? (No) why? 6. What is threading? 7. What is multithreading? 8. There r lot of advantages of multithreading, but what could be the possible disadvantages. 9. We have a database how would you make it search efficient (ans-indexing) more questions on indexing 10. Some advanced java concepts, I don't remember. 11. What's conflict management? How would you manage it. 12. Singleton class 13. Collection API 14. What is the superclass of any java program? (Ans, object class) More questions on object class, like what methods are included in object class. 15. What is an API, give examples 16. In java can strings b immutable? Explain 17. Difference between string buffer, string pool, string builder. 18. Tell me about JIT (just in time interpreter) Why is it used? 19. Questions on static keyword. 20. Final keyword. 21. New technology you're recently come across. 22. Interfaces in java 23. How would you store large amount of data in your database, and how would you retrieve it efficiently? 24. What's synchronisation and why is it important 25. What is an infinite loop 26. Can we compare strings using equality == operator? 27. Access specifiers.

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