Crédit Agricole Junior Java Developer interview questions

Written test: 15 logical test(multi-optional test) + java based questions. Java based questions like some about RDBMS, maven options, JVM options, implement Singleton, dirty read, prepared statement VS callable statement differences, HashMap VS Map differences etc. First round interview: Ask like data collections, when to use different collections, and what is the ArrayList implementation, also ask a code writing for reverse String. What is HashSet and some questions about hashcode. Second round interview: No technical questions, only what is your strength what is your weakness and why your teammates like you and do you have any questions?