Java Interview questions by DataMatic

Java Interview questions by DataMatic  -

1) Big file (.CSV) file of 3 GB. How will you process it and put in DB?
Ans) Use of MappedByteBuffer 

2) What is Callable interface in JAVA (Threads)?

3) Working of CuncerentHasMap?

Your comments are welcomed in comments secession.

Java harbinger company Pune interview questions on architecture role

Q1. Describe IOC and DI aligned with SOLID design principle.

Q2. Can we implement Polymorphism in RDBMS.

Q3. What is ORM.

Answers are welcomed in comment secession.