Defence System

Overview

A Java Swing application that simulates a military defence system with three units (Tank, Helicopter, and Submarine) controlled by a central command center. The application demonstrates the Observer design pattern for communication between different military units.

Features

• Command and Control System: Central command center for coordinating military units
• Multiple Defence Units: Tank, Helicopter, and Submarine units with unique capabilities
• Communication System: Message passing between units and command center
• Resource Management: Monitor and manage fuel, ammunition, and personnel
• Real-time Updates: Status changes are reflected across all units

Functionality

• Main Controller:

  • Adjust strength levels affecting unit capabilities
  • Send messages to all units or specific units
  • Request unit information
  • Control area clearance status

• Units (Tank, Helicopter, Submarine):

  • Perform unit-specific operations based on strength levels
  • Send and receive messages
  • Monitor resources (fuel, ammunition, personnel)
  • Change position to enable/disable operations

Design Patterns

The system implements the Observer Pattern:

• Observable class: Manages communication between units
• Observer interface: Implemented by all units to receive updates

Getting Started

Prerequisites

• Java Development Kit (JDK) 11 or higher
• NetBeans IDE (recommended for form editing)

Running the Application

1. Clone the repository
2. Open the project in NetBeans IDE
3. Run the Start.java file in the src/Start directory

Building from Source

# Navigate to project directory
cd Defence-System

# Build the project using Ant
ant build

# Run the application
java -jar dist/Course_Work.jar

Demo

License

This project is provided for educational purposes only.

Author

• Sadeepa Herath