Telephonic Java Interview Series 29

Telephonic Java Interview Series 29

This is Telephonic Java Interview Series 24 questions for Sr. Java Developer position in big insurance company. Below are questions:

1. What is polymorphism in Java ?
2. Difference between HashMap and HashTable ?
3. How do you compare object in Java ?
4. Difference between comparator and comparable interface ?
5. Difference between abstract class and interface ?
6. How HashMap works in Java ?
7. Difference between update and merge in hibernate ?
8. What is application context in Spring ?
9. What is DI in spring ?
10. How do you integrate spring with Hibernate ?
11. What is locking in hibernate ?
12. What is HashCode and equals in Java ?

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