SOFTWARE ENGINEERING · REAL-TIME MESSAGING

Telegram Clone

A desktop messaging system built as the final project of Advanced Programming, with a JavaFX client, multithreaded Java server, socket-based communication, and PostgreSQL persistence.

RoleSoftware Development

Year2025

ArchitectureClient · Server

StackJava · JavaFX · PostgreSQL

View source on GitHub ↗Back to work

What the system does

The application supports real-time messaging, saved messages, contacts, private chats, groups, channels, user profiles, and interface overlays. The client sends structured requests through sockets while the server processes multiple users concurrently and persists application state in PostgreSQL.

JavaFX ClientJSON RequestsTCP SocketsMultithreaded ServerPostgreSQL

Architecture and data model

Telegram Clone relational database schema — Relational schema for users, messages, contacts, private chats, groups, channels, memberships, and channel administration.

Interface

Telegram Clone start messaging screen — Intro / onboarding screen.

Telegram Clone navigation sidebar — Sidebar navigation with profile, groups, channels, contacts, saved messages, settings, and theme control.

Telegram Clone conversation view — Main conversation view and chat list.

Engineering concepts

Object-Oriented ProgrammingSocket ProgrammingMultithreadingConcurrency ControlDatabase DesignPersistenceJavaFX UIReal-time Events