Smarter Health Java Engineer interview questions

Experience and about CV. Why resign from the previous company. Then the interviewer directly asked questions about Java specifically. I didn't expect it because usually, the interviewer will just ask about Data Structure and algorithms. The interviewer asked about what java version did you have used, what is lambda, what the java stream is. Since I haven't used it very often, the interviewer moved to another question which is what is REST API. Maybe because my answer is not good enough for them, they end the interviewer sooner. The interview was only last for 5 minutes.