Stock Exchange Order Matching System

This project implements a Stock Exchange Order Matching System in Java, designed to process buy and sell orders efficiently using a linked list-based order book. It uses multi-threading for simulating transactions and atomic operations for safe concurrent updates.

Features: 1.Supports Buy and Sell orders with price and quantity matching. 2.Implements an Order Book that maintains separate buy and sell queues. 3.Uses atomic references to ensure thread-safe operations. 4.Matches orders based on price-time priority. 5.Supports multi-threaded order placement and matching. 6.Implements an event-driven matching engine to execute trades automatically.

How It Works

1.A user submits a buy or sell order. 2.Orders are sorted in the OrderBook (highest buy prices at the top, lowest sell prices at the top). 3.The matching engine checks if a buy order's price is greater than or equal to the lowest sell order price. 4.If a match is found, a trade is executed, and order quantities are updated. 5.The system continuously processes orders in a multi-threaded environment.

Technologies Used -Java 17 -Multithreading (ExecutorService) -Atomic Variables (AtomicReference, AtomicInteger) -Data Structures (Linked List for Order Storage) -OOP Principles (Encapsulation, Inheritance, Polymorphism)