Servosys Solutions Software Developer interview questions

Firstly aptitude round Then there are two interviews I just only gave first interview,cleared it, got shortlisted for second one. But never heard after. The college said the company's requirement is fulfilled so they will not take your interview In first interview they asked about oops concepts of java, collections in java, array list and linked list difference, and one coding question on hashset.

First round -> Basic coding question of Array and String,Core Java concepts Second round -> Servlet JSP,REST api and springboot Questions Thrid Round -> Managerial Round Fourth Round -> HR Round