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Software Developer Java Interview Questions
4,203 software developer java interview questions shared by candidates
Explain oops concepts in detail
What do you know about OOP?
First round: ========= Threads, abstraction, interface, some java programs, Exception, collection, hash map, internal functionality, if I give return statement, system.exit(0) in try catch what will happen ? comparator interface, programs from array and arraylist, how to convert the array to arraylist. what is singleton, How to create singleton class, sessionfactory, IOC, types of set collection ( she meant implementation class for set interface ha ha ha ), design patterns. difference btw throw & throws. You must be very clear in core java concepts & very confident in your answers. I was waited for 10 mins then got a call for second round. It was quite normal. not much more technical questions. 1. Tell me about your self. 2. Why you are looking for change. 3. what difficulty you faced in previous project. 4. How to handle the memory management 5. What are the coding standards which we need to follow. After that again I have waited for 10 mins and got a call for 3rd round which is U.S. ascent english test. My fate I didn't clear this round. Before attending the interview in Deliote please go-through the mentioned questions. Hope everyone will get these kind of questions.
Why we need dependency injection?
"What is class", or other simple ones. Coding challenge about using spring cache, but was based only on adding annotations
In every interview process: why you wanna join Picnic?
Generics (Sets, Lists, Maps, Trees), Threads, Iterators
concurrent collections, executor framework in multithreading, diff annotation in spring boot, one to one and one to many mapping practical example.
I could not attend the interview
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