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Full Stack Java Developer Interview Questions

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1,052 full stack java developer interview questions shared by candidates

React & JS 1. Given 1 URL that data need to render in table format, while coding ask few question what is hook, useState, useEffect, debug the code analysis the styling and change it. 2. Closure, Hoisting in js 3. Let say you are CEO if huge E-commerce application as a CEO what kind of this you want to see when you have only 10 minutes to see. 4. LinkedList, Stack, Queue Java 1. HashMap working internal, Linked HashMap vs HashMap. 2. Design LLD for Parking Lot 3. Advantage of Spring Bean over manual creation of bean. 4. Give some situation and ask what kind of Data structure you use.
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Full Stack Engineer - Java and React JS

Interviewed at Apple

4.1★
Jun 7, 2025

React & JS 1. Given 1 URL that data need to render in table format, while coding ask few question what is hook, useState, useEffect, debug the code analysis the styling and change it. 2. Closure, Hoisting in js 3. Let say you are CEO if huge E-commerce application as a CEO what kind of this you want to see when you have only 10 minutes to see. 4. LinkedList, Stack, Queue Java 1. HashMap working internal, Linked HashMap vs HashMap. 2. Design LLD for Parking Lot 3. Advantage of Spring Bean over manual creation of bean. 4. Give some situation and ask what kind of Data structure you use.

Interviewer starts with java 8 questions like java 8 features, Intermediate and terminal operation in stream, functional interface, dispatcher servlet, then coding questions, algorithm data structure, spring boot, microservices, jpa, hibernate, react js , javascript
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Java Full Stack Developer

Interviewed at Quest Global

3.9★
Mar 28, 2022

Interviewer starts with java 8 questions like java 8 features, Intermediate and terminal operation in stream, functional interface, dispatcher servlet, then coding questions, algorithm data structure, spring boot, microservices, jpa, hibernate, react js , javascript

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