Interview scheduling and communication were good. HR informed me there would be five rounds of interviews: three technical, one manager, and a final HR round.

The first technical interview went well. It involved two array-related problem-solving questions, along with some Java and Spring questions.

Regarding the second technical interview, the interviewer was burping before he even started asking for my introduction. While I was explaining my project and skillset, he began showing attitude by interrupting me before I could finish speaking. He gave me a problem to solve, the "rain trapping water" problem from a website, and provided the same inputs already present on that site. When I tried to solve it my way, he looked at the solution from the website and then asked me to follow another approach already there. If you don't know how to solve the problem, why are you asking by copying from a site? I declined to solve it and was rejected, but I felt happy later.

Rainwater trapping problem.

How a HashMap works internally.

Exception handling in Spring Boot.