Java Software Developer Interview Questions

3,069 java software developer interview questions shared by candidates

Core Java, Multi-threading, Microservices Design Patterns, SAGA Pattern, CAP theorem, Spring Boot, JPA & Hibernate implementation, solving performance issues in Microservices and optimizing databases. Transaction Management in Microservices.
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Software Engineer - Java Developer

Interviewed at United Airlines

3.8
Jun 7, 2024

Core Java, Multi-threading, Microservices Design Patterns, SAGA Pattern, CAP theorem, Spring Boot, JPA & Hibernate implementation, solving performance issues in Microservices and optimizing databases. Transaction Management in Microservices.

Heap memory vrs stack memory Classloader. types of classloader spring boot annotations that i have used? LinkedList insertion and deletion from particular index Exception, Errors Number of Leader Elements Multithreading Synchronized block Static keyword in java constructor injection
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Software Engineer - Java Developer

Interviewed at Oracle

3.5
Oct 1, 2021

Heap memory vrs stack memory Classloader. types of classloader spring boot annotations that i have used? LinkedList insertion and deletion from particular index Exception, Errors Number of Leader Elements Multithreading Synchronized block Static keyword in java constructor injection

Overall easy interview. Basic questions were asked from all topics mentioned in the resume. Java 8 features, code on stream api, collections, sql, spring core questions, dependency injection, tree set, hashset, working of hashmap.
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Software Engineer - Java Developer

Interviewed at Cognizant

3.6
Oct 1, 2021

Overall easy interview. Basic questions were asked from all topics mentioned in the resume. Java 8 features, code on stream api, collections, sql, spring core questions, dependency injection, tree set, hashset, working of hashmap.

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