Dogma Systems Full Stack Java Developer interview questions

Applied Online, Remote Interview 2 Rounds- HR and Tech HR round: Intro, Some HR questions and basic java quetions based on OOPs, Strings, Collections etc. Knowledge of frameworks.. Tech Round: Java in depth, asked tricky internal working based questions.. Strings immutability and memory allocation.. Multithreading.. Few Questions on Hiibernate, Spring frameworks etc..