Backend Architecture Example
A Spring Boot demo application built around Java 26, showcasing modern Java features, API development, interview exercises, SQL/JPA demos, and practical backend engineering patterns.
Java 26 Demo is a hands-on sandbox designed to explore current Java capabilities while demonstrating software engineering fundamentals. It includes examples from multiple Java releases, interview-style exercises, polymorphism scenarios, SQL and JPA demonstrations, and API-first development. It features automatic documentation with swagger that enables a user to explore the API endpoints and view the functions that came with each version of Java. The project is deployed on AWS Elastic Beanstalk and uses Docker to containerize the application.
Explore language features from Java 8 through 9, 10, 11, 21, and 26.
REST endpoints showcasing repositories, queries, relationships, and data access patterns.
Swagger UI and OpenAPI support make the project browsable and easy to test.
Browse and query the in-memory H2 database directly during local development.
A separate module demonstrates the Java Platform Module System.
Run locally, package as a JAR, containerize with Docker, or deploy to cloud hosting.
I built Java 26 Demo to use Java functions too modern to make it into most entierprise tech stacks. Here I've reinforced backend fundamentals and packaged that learning into a cohesive, browsable application. It works as a practical reference, an interview preparation aid, and a portfolio-quality project that demonstrates architecture, language features, data access, documentation, and AWS deployment.
Java 26 target
Practical microservice architecture
H2 for fast iteration
Swagger / OpenAPI
Portable and consistent
Deployable workflow