✅ Task Management System – Java Swing (PT Assignment 1)

This project is a Java Swing GUI-based application developed for the Fundamental Programming Techniques course (Assignment 1), focused on managing tasks assigned to employees in a software company.

📌 Features

• Add employees
• Add tasks: SimpleTask (with duration), or ComplexTask (nested tasks)
• Assign tasks to employees
• View employees and their tasks
• Modify task status (Completed/Uncompleted)
• Statistics and filtering:
  • Total duration worked per employee (only completed tasks)
  • Filter employees working more than 40h
  • Number of completed/uncompleted tasks per employee

🧱 Technical Highlights

• OOP Design: Uses inheritance, polymorphism, sealed classes (Task)
• Design Pattern: Composite Pattern for nested ComplexTasks
• GUI: Developed using Java Swing
• Persistence: Java Serialization to save/load employees and tasks
• Layered Architecture: Separation of concerns between models, services, and UI
• Code Quality: Methods under 30 lines, naming conventions respected

🗂️ Project Structure

src/
├── model/
│   ├── Employee.java
│   ├── Task.java (sealed)
│   ├── SimpleTask.java
│   └── ComplexTask.java
├── service/
│   ├── TaskManagement.java
│   └── Utility.java
├── ui/
│   └── MainWindow.java
├── data/
│   └── serialized files
└── diagrams/
    ├── use_case.drawio
    ├── class_diagram.drawio
    └── package_diagram.drawio

📚 Technologies Used

• Java 17+ (for sealed classes)
• Java Swing
• Serialization (java.io)
• draw.io for UML diagrams

🧪 What I Learned

• How to implement a multi-layered architecture in Java
• Using Composite Pattern to model complex tasks
• Creating user interfaces in Java Swing
• Managing data using serialization
• Writing reusable utility methods for filtering and aggregation
• Applying sealed classes and following Java coding standards

📝 Grade

✅ 10/10 – Full implementation of all functional and technical requirements.

🧑‍💻 Author

Maxim Francesco
University: Technical University of Cluj-Napoca
Course: Fundamental Programming Techniques
Email: maaximfrancesco@gmail.com
LinkedIn: linkedin.com/in/francescomaxim