Expense Tracker CLI

A simple, menu-driven CLI application for tracking personal expenses, built with Core Java.

Features

• User Authentication: Register and Login to secure your data.
• Expense Management: Add expenses with amount, category, date, and description.
• View Modes: View all expenses or filter by month.
• Reporting: Calculate total expenses.
• Persistence: Data is saved to data/expenses.csv and data/users.csv.

Requirements

• Java Development Kit (JDK) 8 or higher.
• Linux environment (Terminal).

Project Structure

expense-tracker/
├── src/
│   ├── model/
│   │   ├── Expense.java
│   │   └── User.java
│   ├── service/
│   │   ├── ExpenseService.java
│   │   └── UserService.java
│   ├── util/
│   │   └── FileUtil.java
│   └── Main.java
├── data/
│   ├── expenses.csv
│   └── users.csv
└── README.md

How to Run

1. Navigate to the project directory:

   cd /path/to/expense-tracker

2. Compile the source code:

   mkdir -p bin
   javac -d bin src/model/*.java src/util/*.java src/service/*.java src/Main.java

3. Run the application:

   java -cp bin Main

Usage

1. Register: Create a new account with a username and password.
2. Login: Use your credentials to access the system.
3. Manage Expenses: Once logged in, use the menu to add or view expenses.
   • Data is automatically saved to the data/ directory.