Inspiron Labs Junior Java Developer interview questions

it is a walk-in drive conducted by company there are totally 4 round 1st round is writeen with some technical question and 2 code of mid-level in java 2nd round is a one to one technical round they asking basic java to collection advance concept and basically java8 as per follow up ur resume after that 3 round also technical they asking about spring annotation and workflow and writting rest api