Joshua T. Price 09-05-2025 https:// Open source, no license

Stock Price Tracker (Java)

A lightweight Java desktop application that allows users to fetch and track the latest stock prices in real time using the Polygon.io API. Features an autocomplete suggestion box for stock symbols with company names, and a user-configurable API key system.

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Features

• Fetch the latest closing price of any stock supported by Polygon.io.
• Autocomplete suggestions for stock symbols with company names.
• Settings screen for users to input and save their own API key.
• Clean, responsive Swing-based GUI.
• Scrollable results area with timestamped price entries.
• Lightweight, no external databases required.

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Screenshots

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Getting Started

Prerequisites

• Java 17+ installed
• Polygon.io API key (Sign up here)

Installation

1. Clone or download the repository:

git clone https://github.com/joshuaprice13/Stock_API_Tracker