Personal Expenses Calculator (Java)

This project is a Java OOP financial tracker focused on private and simple expense tracking.

Implemented Classes

• User
• Transaction
• Category
• Budget
• Goal
• Notification
• ExpenseTrackerService
• DashboardSummary
• TransactionType (enum)
• FinancialTrackerUI (frontend preview)

Build

javac -d out $(find src -name "*.java")

Run (Console)

java -cp out com.financialtracker.app.Main

Run (Frontend Preview)

java -cp out com.financialtracker.app.Main --ui

You can also launch the UI class directly:

java -cp out com.financialtracker.app.FinancialTrackerUI

What the Program Produces

• Dashboard totals (income, expenses, net)
• Budget status (limit, spent, remaining)
• Goal progress percentage
• Full transaction list with category labels
• Expense totals by category
• Notifications (budget alerts, app alerts)
• Frontend preview window with dashboard, tables, and notifications

UML

See docs/UML.md for the class diagram that matches the implemented classes.

Submission Checklist (Rubric)

• Code: all classes and service logic are implemented.
• Compilation: compile with the commands above.
• Program Execution: run Main with no errors.
• Results: output demonstrates required financial tracking behavior with test data.
• Coding Style & UML: consistent formatting, comments, and UML included.
• GitHub: push this folder to your repository and submit the repo URL.
• Screenshots: capture console output and frontend preview using test data.