Java Full Stack Developer Interview Questions

1,048 java full stack developer interview questions shared by candidates

They asked everything related to my tech stack and I answered everything in l2 round. interview is about half an hour but they took for 1 hour and after this they didn't select me. Not satisfied with the outcomes even I wasted my time in preparing for capgemini interview process.
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Full Stack Java Developer

Interviewed at Capgemini

4.2
Jan 5, 2026

They asked everything related to my tech stack and I answered everything in l2 round. interview is about half an hour but they took for 1 hour and after this they didn't select me. Not satisfied with the outcomes even I wasted my time in preparing for capgemini interview process.

1st round: DSA was easy with Java being the only available platform (one was a pattern printing question, and the other was a LC easy Arrays question. MCQs had questions on SQL, React and Spring. 2nd round interview: Streams, consumer classes, lambda functions, multithreading.
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Full Stack Java Developer

Interviewed at HiLabs

3.4
Jan 4, 2023

1st round: DSA was easy with Java being the only available platform (one was a pattern printing question, and the other was a LC easy Arrays question. MCQs had questions on SQL, React and Spring. 2nd round interview: Streams, consumer classes, lambda functions, multithreading.

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