All basic Core Java Questions
Software Engineer Software Developer Interview Questions
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what is wrapper class
singleton design pattern
What is the difference between Inner join and outer join? What is encapsulation in Java? What is the difference between LinkedList and HashMap?
For 2nd and 3rd question I cant Add diagram so please refer following explanation- 2nd question- They have given 12x12 pixel board and there are random black pixels are there, u have to find largest square formed by those black pixel in that entire 12x12 board(Hint- use matrix for black pixel=1 , white pixel=0) 3rd question- there is one big rectangle A yellow color, on top of that there are 3 more small black rectangle B,C,D covering some part of rectangle A. You have to find area of visible yellow part of rectangle A (Use some Data structure)
What are the main principles of Object-Oriented Programming (OOP)?
Q: Explain about your projects
What is the worst characteristic you have for this job?
They asked all the questions which a good product based will ask but they can't pay you
1 round Medium: Theory + coding. [stream concept , Maven based qns like maven lifecycle, scope of spring, design pattern, Touch all collection concept like [Hashmap, ConcurrentMap, LinkedHashmap, Vector, List]], Stream coding part [count occerance of word]. 2 nd Round [More depth of java and springboot and also javascript as I mention in resume], Memory Management, exception Handling, try with multiple catch block, Transaction, Isolation, propagation. Coding I am not remember because I am not even understood the qns well and due to that I was blank in interview and mostly that I rejected.
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