Triangle Area Calculator in Java

This repository contains a Java project that calculates the area of a triangle given the lengths of its sides. The program includes classes for handling user input, performing calculations, and displaying the results.

Features

• User Input Handling: Reads the lengths of the triangle's sides from the user.
• Area Calculation: Computes the area using Heron's formula.
• Result Display: Outputs the calculated area to the user.

Code Snippets

Main Class

The main class initializes the program, handles user input, and invokes the calculation methods.

public class Principal {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("Enter the length of side A: ");
        double sideA = scanner.nextDouble();

        System.out.print("Enter the length of side B: ");
        double sideB = scanner.nextDouble();

        System.out.print("Enter the length of side C: ");
        double sideC = scanner.nextDouble();

        TTriangulo triangle = new TTriangulo(sideA, sideB, sideC);
        double area = triangle.calculateArea();

        System.out.println("The area of the triangle is: " + area);
    }
}

Triangle Class

The TTriangulo class contains methods for calculating the area of the triangle.

public class TTriangulo {
    private double sideA;
    private double sideB;
    private double sideC;

    public TTriangulo(double sideA, double sideB, double sideC) {
        this.sideA = sideA;
        this.sideB = sideB;
        this.sideC = sideC;
    }

    public double calculateArea() {
        double s = (sideA + sideB + sideC) / 2;
        return Math.sqrt(s * (s - sideA) * (s - sideB) * (s - sideC));
    }
}

Usage

1. Compile the Java files using a Java compiler (e.g., javac).
2. Run the main class (Principal) to start the program.
3. Enter the lengths of the triangle's sides when prompted.
4. The program will calculate and display the area of the triangle.

Classes and Methods

• Principal: The main class that handles user input and program execution.
  • main(String[] args): The entry point of the program.
• TTriangulo: A class representing a triangle with methods for area calculation.
  • TTriangulo(double sideA, double sideB, double sideC): Constructor that initializes the triangle's sides.
  • calculateArea(): Method that calculates and returns the area of the triangle using Heron's formula.