Iris Software Interview Question

Round 1) Core java Multithreading(ExecutorService, ThreadPool Synchronization),Collecton(ConcurrentHashMap vs HashMap),Abastraction, Encapsulation,JVM JDK and JRE, RDBMS, Spring. Round 2->Deep dive on question asked on round 1,RDBMS Query, Hibernate if you know ,Spring, and The will give a problem mostly related to core java or your the will judge your problem solving skill and ask you write the program on Eclipse. Round 3 -> Same as round 2 Round 4->Project Manager Round about your project, roles and responsibility etc.