The interviewer asked me to discuss my resume and projects.

This took about 10 minutes.

Then, he asked if I had completed any testing projects, and I described my experience.

He then asked me to rate my Java proficiency on a scale of 1 to 10. I answered 6-7, as I am not an expert. He was essentially reviewing my resume and asking questions based on its content.

He began asking Java-related questions:

1. What is the difference between an abstract class and an interface?
2. Arrays versus vectors?
3. String versus String buffer?
4. Object-oriented concepts such as inheritance and polymorphism?
5. Advantages of OO?
6. Describe synchronization.
7. Two questions on threading.
8. A few more basic Java questions.

After that, he gave me two tasks to test:

1. String manipulation.
2. Vending machine simulation.