Polymorphism Error vs exception Java keywords
Software Engineer Java Developer Interview Questions
4,195 software engineer java developer interview questions shared by candidates
Java basics, Springboot basics and angular
find duplicate character in string
Given a large file that does not fit in memory (say 10GB), find the top 100000 most frequent phrases. The file has 50 phrases per line separated by a pipe (|). Assume that the phrases do not contain pipe. Example line may look like: Foobar Candy | Olympics 2012 | PGA | CNET | Microsoft Bing …. The above line has 5 phrases in visible region.
they are asking in-depth about the core java,like internals of substring
Personal experiences
- Explain dependency injection in Spring. - What frameworks do you use for unit tests and integration tests. - Have you work with threads, have you worked with microservices. - Explain the CI/CD pipeline.
I won't go into details about the questions, but there were several systems design questions that took up about a half hour and one medium-difficulty coding problem that took up the rest of the interview.
basic Java questions
How would you create an immutable object in Java? How do you feel about the type system of Java vs Javascript? What is a relational database? When would you use a nosql database instead of sql? What is MERN? What is a CDN, why would you use it? What is an ORM? When would you not use an ORM like Hibernate? What does Spring framework provide that core Java does not? Why use Mockito? What is the React lifecycle?
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