Extremely unprofessional attitude from the interviewers. Their intention was clearly visible from the start, i.e., 'how to reject this candidate' rather than 'how to select this candidate'. I would not consider proceeding with them further.

They asked me why we have class and Object in Java, and for 45 minutes, they only asked questions around this. I applied for Quality Assurance, but I think they forgot about it.

They discussed how difficult it is for them to interview candidates one after another. They also discussed how HR schedules interviews at lunchtime and they are not able to go for lunch.

Why are Object and Class used in Java?

Agile Methodology

How many times do you run your regression suite?