Java R&D Software Developer interview questions

It was about 2 weeks of interview process with 2 telephonic rounds and a face to face round. Questions ranged for mid level to some interesting design related ones. Interviewer was interested in my approach towards problem solving and did provide some feedback where I was not up to the mark.

I applied through naukri.com...first thing first they took communication test then technical interview and lastly written test including 1 coding question included with verbal assessment and eassay writting . Written test is taken remotely with the help of Google docs and a remote software.