Main.java

import Classes.Circle;
import Classes.Rectangle;
import Classes.Triangle;

import javax.swing.*;
import java.util.ArrayList;
import java.util.Random;

public class Main {
    public static void main(String[] args) {
        System.out.println("Shape Heritance Part 2");
        System.out.println("=".repeat(15));
        //Generate a color array and a random object.
        String[] colors = {"Red", "Blue", "Green", "Yellow", "Violet", "Orange", "Black", "White"};
        Random random = new Random();

        // Create an ArrayList for each shape type.
        ArrayList<Triangle> triangles = new ArrayList<>();
        ArrayList<Rectangle> rectangles = new ArrayList<>();
        ArrayList <Circle> circles = new ArrayList<>();

        // This portion of the Main.java will provide the input GUI for the user.
        String input = JOptionPane.showInputDialog("Enter the number of shapes to create:");
        int x;
        try {
            x = Integer.parseInt(input);
        } catch (NumberFormatException e) {
            JOptionPane.showMessageDialog(null, "Invalid input.");
            x = 3;
        }

        // Then we will generate the number of shapes as determined by the user.
        for (int i = 0; i < x; i++) {
            String randomColor = colors[random.nextInt(colors.length)];

            // Create a triangle
            triangles.add(new Triangle("Triangle", randomColor, random.nextDouble(5, 15), random.nextDouble(5,15)));

            // Create a Rectangle
            rectangles.add(new Rectangle("Rectangle", randomColor, random.nextDouble(5, 15), random.nextDouble(5,15)));
            // Create a Circle
            circles.add(new Circle("Circle", randomColor, random.nextDouble(5, 15)));
        }

        // The final thing to do is build and display a GUI report.
        StringBuilder report = new StringBuilder("Shapes in Memory: \n\n");
        int totalShapes = 0;

        report.append("Triangles\n");
        for (Triangle t : triangles) {
            report.append(String.format("%s - Color: %s. My height is %.2f and my base is %.2f. My area is: %.2f\n", t.getShapeName(), t.getColor(), t.getHeight(), t.getBase(), t.getArea()));
            totalShapes++;
        }
        report.append("\nRectangles\n");
        for (Rectangle r : rectangles) {
            report.append(String.format("%s - Color: %s. My length is %.2f and my width is %.2f. My area is: %.2f\n", r.getShapeName(), r.getColor(), r.getLength(), r.getWidth(), r.getArea()));
            totalShapes++;
        }
        report.append("\nCircles\n");
        for (Circle c : circles) {
            report.append(String.format("%s - Color: %s. My diameter is %.2f. My area is: %.2f\n", c.getShapeName(), c.getColor(), c.getDiameter(), c.getArea()));
            totalShapes++;
        }

        report.append("\nTotal Shapes: " + totalShapes);
        JOptionPane.showMessageDialog(
                null,
                report.toString(),
                "Shape Report",
                JOptionPane.INFORMATION_MESSAGE
        );
    }
}