Java Software Engineer Interview Questions

3,075 java software engineer interview questions shared by candidates

Coding question - find second highest element in array, without using 2 loops. Interview question asked-- 1. Project challenges in your current project. 2. java 8 features 3. git commands to handle conflicts 4. hashmap, concurrent hashmap 5. string usage, how to make string mutable 6. abstract and interface 7. sprinboot connection with Angular 8. How to connect springboot with JB(all step by step process) 9. why to use springboot over spring 10. Agile tickets and US. 11. Checked and unchecked exception 12. polymorphism in deep explain 13. springboot resource folder explanation 14. GIT SIT UAT (how pipeline executed internal process expain)
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Software Engineer - Java Developer

Interviewed at Capgemini

4.2
Mar 31, 2025

Coding question - find second highest element in array, without using 2 loops. Interview question asked-- 1. Project challenges in your current project. 2. java 8 features 3. git commands to handle conflicts 4. hashmap, concurrent hashmap 5. string usage, how to make string mutable 6. abstract and interface 7. sprinboot connection with Angular 8. How to connect springboot with JB(all step by step process) 9. why to use springboot over spring 10. Agile tickets and US. 11. Checked and unchecked exception 12. polymorphism in deep explain 13. springboot resource folder explanation 14. GIT SIT UAT (how pipeline executed internal process expain)

Basic Questions Asked: Introduce yourself (including questions about your current project). Why is String immutable in Java, and how can we create an immutable class? Streams coding question – Given a list of integers, find all numbers starting with 1. Explain Predicate and BiFunction interfaces. Explain/implement the Bubble Sort algorithm. Explain Future in Java. Difference between fail-fast and fail-safe iterators. Java 8 features.
avatar

Software Engineer - Java Developer

Interviewed at Capgemini

4.2
Sep 3, 2025

Basic Questions Asked: Introduce yourself (including questions about your current project). Why is String immutable in Java, and how can we create an immutable class? Streams coding question – Given a list of integers, find all numbers starting with 1. Explain Predicate and BiFunction interfaces. Explain/implement the Bubble Sort algorithm. Explain Future in Java. Difference between fail-fast and fail-safe iterators. Java 8 features.

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