they asked my previous experience
Java Software Developer Interview Questions
3,069 java software developer interview questions shared by candidates
Why this team (I had three different choices at the beginning) what did you like about it
they asked oops concepts and about keywords
How many team members in a group
Oops Java basics (header files) For coding - Arrays are sufficient
sort array
In this round basics of java 8 like functional interface ,lamda expression, comparable vs comparator.Also I have mentioned about spring boot so they asked few annotations amd why they are used(@respository,@service,etc)
what is your recent project that you have been work explain your project
Q : java 8 features
Technical Questions : 1. Difference between comparator and comparable ? when would we use comparator ? 2. what is a functional interface? 3. what are different type of data structures you use ? 4. using java 8 convert an array of integers to comma seprated string . 5. difference between array list and linked list ? and which is faster for retrieval? 6. can we use classes as keys in has map ? 7. Singleton prototype in thread. 8. Scope in spring boot ? 9 Do you know patch in spring boot ? 10. when will the dependencies be loaded ? at run time or static time ? 11. If I have two classes with same name what happens ? 12. if I use a concurrent hash map how is it thread safe ? 13. what happens if I try to put a same key in hash map twice ? 14.if i have a custom object as key in hash map how is hash value computed ? 15. what is a method and function level locking ? 16. what are functional interfaces ? 17 . does spring boot use eager or lazy loading ? 18. what is Optional class in spring boot ? 19. what is circular dependency in spring boot.
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