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Computer Science

Car Dealership Manager

Java Swing · OOP domain modelling · JSON · JUnit 5

Period

2025 / Software project

Role

Domain modelling, persistence, desktop UI and testing

Status

Repository available

Project premise

A desktop application organized around clear domain boundaries rather than a collection of disconnected forms.

A Java desktop application for managing dealership inventory, customers, brokers and sales through Swing or a console interface, supported by JSON persistence and automated tests.

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Language

Java 11+

Interfaces

Java Swing + Console

Structure

Model / UI / Persistence

Persistence

org.json / dealership.json

Testing

JUnit 5 / 39 tests

Quality

Checkstyle + UML

Selected project material

Drawings, systems and outcomes.

UML class diagram for Car Dealership Manager
UML design diagram showing the tabbed Swing interface, dealership aggregate, domain records, persistence layer and event log.

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