📈 CodeAlpha Stock Trading Platform

A Java-based console application developed as part of the CodeAlpha Java Programming Internship – Task 2.

The Stock Trading Platform simulates a basic stock market environment where users can view market data, buy and sell stocks, manage their portfolio, track transactions, and monitor portfolio performance.

🚀 Features

• 📊 View available stock market data
• 💰 Buy stocks
• 💸 Sell stocks
• 📁 Manage stock portfolio
• 💳 Track account balance
• 📜 View transaction history
• 📈 Update simulated market prices
• 📊 Analyze portfolio performance
• 💵 Calculate profit and loss
• ⚠️ Validate user inputs
• 💾 Save and load application data using File I/O
• 🖥️ Interactive console-based menu

🛠️ Technologies Used

• Java
• Object-Oriented Programming (OOP)
• ArrayList
• Java Collections
• File I/O
• Console-based Interface

🧠 OOP Concepts Used

This project demonstrates several core Object-Oriented Programming concepts:

• Classes and Objects
• Encapsulation
• Constructors
• Methods
• Object interaction
• ArrayList and Collections
• Separation of responsibilities between classes

📂 Project Structure

CodeAlpha_StockTradingPlatform/
│
├── Main.java
├── Stock.java
├── Portfolio.java
├── Transaction.java
├── User.java
├── StockMarket.java
├── DataManager.java
├── README.md
└── .gitignore

📌 Project Components

Main.java

Contains the main application, user interface, and menu-driven program flow.

Stock.java

Represents individual stocks and stores their market information.

Portfolio.java

Manages the user's stock holdings and portfolio calculations.

Transaction.java

Stores information about buying and selling transactions.

User.java

Manages user-related information and account details.

StockMarket.java

Manages available stocks and simulated market prices.

DataManager.java

Handles saving and loading application data using File I/O.

🎮 Main Menu

The application provides the following options:

==========================================
              MAIN MENU
==========================================

1. View Market Data
2. Buy Stock
3. Sell Stock
4. View Portfolio
5. View Transactions
6. View Account Balance
7. Update Market Prices
8. View Portfolio Performance
9. Save & Exit

==========================================

▶️ How to Run

1. Clone the Repository

git clone https://github.com/ywxarchit/CodeAlpha_StockTradingPlatform.git

2. Open the Project Folder

cd CodeAlpha_StockTradingPlatform

3. Compile the Java Files

javac *.java

4. Run the Application

java Main

💡 How the Application Works

The application starts with an initial account balance and provides a menu-driven interface.

Users can:

1. View available stocks and their current prices.
2. Buy stocks by entering the stock symbol and quantity.
3. Sell stocks from their existing portfolio.
4. View their current portfolio holdings.
5. Check previous transactions.
6. Check their available account balance.
7. Update simulated market prices.
8. Analyze portfolio performance and profit/loss.
9. Save application data and exit.

🧪 Input Validation

The application handles invalid user inputs such as:

• Invalid stock symbols
• Zero or negative quantities
• Insufficient account balance
• Selling more shares than currently owned

💾 Data Persistence

The project uses File I/O to save and retrieve application data, allowing important information such as portfolio and transaction data to be maintained between program executions.

🎓 Internship Information

Organization: CodeAlpha Program: Java Programming Internship Task: Task 2 – Stock Trading Platform

👨‍💻 Author

Archit Singh

B.Tech – Computer Science & Engineering

📌 Purpose

This project was developed for educational and internship purposes to strengthen practical knowledge of:

• Java Programming
• Object-Oriented Programming
• Collections
• File Handling
• Input Validation
• Console Application Development