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Java Developer Internship Interview Questions
30,885 java developer internship interview questions shared by candidates
what is java, what is OOPS, what is spring, spring boot
Company for some reason makes a strong accent on concurrency initially. I was asked to create a load balancer with the production like code. You won't be given any requirements initially but only to implement the register method. Tried to clarify all the requirements ( target groups, healthchecks etc. ) From the interviwer answers I realized I shouldn't clarify requiments at this point. More requirements will be added added like capacity limitation and uniqueness check. why do you prefer register(String url) over register(URL url)? in what case the array list append won't be constant time? why it's not ready for prod ( concurrency ) what problems do you see? what's the simplest was to fix it? Didn't receive any feedback so it's hard to tell what was expected.
Discuss Composite Pattern with the example of a File System
Have you done any kind of R & D work? Model All classes and interfaces by looking at room
about basic java + OOPS + collections SQL - write query, and about DDL,DML,DQL,TCL JOINS, Aggregate Functions
Rest and Soap advantages and disadvantages
Main features of Java 8,parallel stream etc
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Interview questions are good and appropriate. Basic questions
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