OpenClosedPrincipleproblem/Main.java

import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        // Test the shape classes and functionality
        List<Shape> shapes = new ArrayList<>();
        shapes.add(new Square(5.0, "Red"));
        shapes.add(new Circle(3.0, "Blue"));
        
        // Test ColorFilter
        ColorFilter redFilter = new ColorFilter("Red");
        List<Shape> redShapes = redFilter.filterByColor(shapes);
        System.out.println("Number of red shapes: " + redShapes.size());
        
        // Test Resizable functionality
        for (Shape shape : shapes) {
            if (shape instanceof Resizable) {
                System.out.println("Before resize: " + shape.calculateArea());
                ((Resizable) shape).resize(1.5);
                System.out.println("After resize: " + shape.calculateArea());
            }
        }
        
        // Test ShapeStatisticsAnalyzer
        ShapeStatisticsAnalyzer analyzer = new ShapeStatisticsAnalyzer(shapes);
        analyzer.printStatistics();
        
        // Test Shape Conversion System
        System.out.println("\n===== Testing Shape Conversion =====");
        CircleToSquareConverter circleToSquare = new CircleToSquareConverter();
        SquareToCircleConverter squareToCircle = new SquareToCircleConverter();
        
        Circle originalCircle = new Circle(4.0, "Green");
        Square convertedSquare = circleToSquare.convert(originalCircle);
        System.out.println("Original Circle: Area = " + originalCircle.calculateArea() + ", Color = " + originalCircle.getColor());
        System.out.println("Converted Square: Area = " + convertedSquare.calculateArea() + ", Color = " + convertedSquare.getColor() + ", Side = " + convertedSquare.getSide());
        
        Square originalSquare = new Square(6.0, "Yellow");
        Circle convertedCircle = squareToCircle.convert(originalSquare);
        System.out.println("Original Square: Area = " + originalSquare.calculateArea() + ", Color = " + originalSquare.getColor());
        System.out.println("Converted Circle: Area = " + convertedCircle.calculateArea() + ", Color = " + convertedCircle.getColor() + ", Radius = " + convertedCircle.getRadius());
        
        // Test Composite Shape System
        System.out.println("\n===== Testing Composite Shape =====");
        CompositeShape composite = new CompositeShape("Composite-Group");
        composite.addShape(new Square(2.0, "Purple"));
        composite.addShape(new Circle(1.0, "Orange"));
        composite.addShape(new Square(3.0, "Pink"));
        
        System.out.println("Composite Shape - Number of shapes: " + composite.getShapeCount());
        System.out.println("Composite Shape - Total Area: " + composite.calculateArea());
        System.out.println("Composite Shape - Total Perimeter: " + composite.calculatePerimeter());
        System.out.println("Composite Shape - Color: " + composite.getColor());
        
        // Test resizing composite shape
        System.out.println("\nResizing composite shape by factor 2.0");
        composite.resize(2.0);
        System.out.println("Composite Shape - After resize - Total Area: " + composite.calculateArea());
        System.out.println("Composite Shape - After resize - Total Perimeter: " + composite.calculatePerimeter());
        
        // Test setting color for all shapes in composite
        System.out.println("\nSetting color for all shapes in composite to 'Black'");
        composite.setAllShapesColor("Black");
        
        // Display individual shapes after modifications
        System.out.println("\nIndividual shapes after modifications:");
        for (Shape shape : composite.getShapes()) {
            System.out.println("- Shape: " + shape.getClass().getSimpleName() + ", Color: " + shape.getColor() + ", Area: " + shape.calculateArea());
        }
    }
}