Box Class - Java OOP Example

This repository contains a Java program demonstrating Object-Oriented Programming concepts with a Box class.

📋 Program Overview

The Box class implements a simple geometric object with the following features:

• Data Members: height, width, depth (private double variables)
• Constructors: Parameterized and default constructors
• Methods: Volume calculation, getters, setters, and display functionality

🔗 Source Code

Main Program: Box.java

🚀 Features

Data Members

• private double height - Height of the box
• private double width - Width of the box
• private double depth - Depth of the box

Constructors

• Parameterized Constructor: Box(double height, double width, double depth)
• Default Constructor: Box() - Initializes all dimensions to 0.0

Methods

• double volume() - Calculates and returns the volume (height × width × depth)
• getHeight(), getWidth(), getDepth() - Getter methods
• setHeight(), setWidth(), setDepth() - Setter methods
• displayBox() - Displays box information and volume

📖 Usage Example

// Create a box with specific dimensions
Box box1 = new Box(10.5, 8.0, 6.5);
box1.displayBox();

// Create a box using default constructor
Box box2 = new Box();
box2.setHeight(5.0);
box2.setWidth(4.0);
box2.setDepth(3.0);

// Calculate volume
double volume = box2.volume();
System.out.println("Volume: " + volume);

🏃‍♂️ How to Run

1. Compile the program:

   javac Box.java

2. Run the program:

   java Box

📊 Sample Output

Box 1:
Box dimensions:
Height: 10.5
Width: 8.0
Depth: 6.5
Volume: 546.0

Box 2:
Box dimensions:
Height: 5.0
Width: 4.0
Depth: 3.0
Volume: 60.0

Volume of Box 1: 546.0
Volume of Box 2: 60.0

🎯 Learning Objectives

This program demonstrates:

• Encapsulation: Private data members with public methods
• Constructors: Both parameterized and default constructors
• Method Implementation: Business logic in member functions
• Object Creation: Instantiating objects and calling methods
• Data Validation: Using getters and setters for controlled access

🔧 Requirements

• Java Development Kit (JDK) 8 or higher
• Any Java IDE or text editor
• Command line/terminal for compilation and execution

👨‍💻 Author

sarithdm - GitHub Profile

📝 Repository

This code is part of the OOP (Object-Oriented Programming) repository:

• Repository: https://github.com/sarithdm/oop
• Direct Link to Box.java: https://github.com/sarithdm/oop/blob/master/Box.java

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📚 Related Concepts

• Object-Oriented Programming (OOP)
• Java Classes and Objects
• Encapsulation
• Constructor Overloading
• Method Implementation