I applied through the portal and received an email from company HR asking for my updated profile and some basic details. After that, HR scheduled a telephonic interview for the following weekday.

When I later asked for feedback, HR mentioned that I had cleared the telephonic round and would be having a second, face-to-face interview. The next day, I received an email for the F2F interview in Bangalore.

I arrived 30 minutes prior to the scheduled time. However, upon checking with security, they were unaware of any scheduled interview. When I tried calling the HR number (provided in the email signature and from which I had received a call), both numbers turned out to be private personal numbers.

I sent multiple emails but received no response.

The same process happened once again. This time, I directly asked the telephonic interviewer for feedback, and he mentioned it was positive. However, after continuously asking HR for feedback for six days, on the sixth day, she replied via email stating that I had not cleared the telephonic round.

I am unsure if they intend to conduct interviews. However, if you receive any calls from Oracle, please request a contact number that is not a personal number.

1. Explain yourself and about your project.

2. What are checked and unchecked exceptions?

3. How does HashMap work internally?

4. What is the difference between a Map and a Set?

5. If no exception is declared in a superclass, can a subclass declare any checked or custom exception?

6. Why is String immutable in nature?

7. How do you make a class a Singleton?

8. How do you make a class immutable?

9. What is the difference between an ArrayList and a LinkedList?