1. Why we use Interface in Java? Give an example from your Project?
2. What is Abstract class ? what is the diffrence between Abstract class and interface?
3. What are the string operations you used in your project?
4. Write class which will do Validation of your classes but this validation class should be dynamic?
5. Write program which will remove duplicate elements from Array.
6. Write a Singleton Class.
7. What is Factory,Singleton,Proxy Design Pattern?
8. What is IOC ?
9. What is Bean Factory?
10. What is Concurrent Hash Map?
11. What is the difference between HashMap and HashSet?
12. HashMap Internal Structure with Example?
13. What is evict in hibernate?
14 What is Generics why we use this in Java?
15 What is Assertion?
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