[NP] Uncle Canvas

import java.util.Scanner;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.stream.Collectors;

interface Scalable {
    public void scale(float scaleFactor);
}

interface Stackable {
    public float weight();
}


abstract class Shape implements Stackable,Scalable,Comparable<Shape> {
    private String id;
    private Color color;

    public String getId() {
        return id;
    }

    public Color getColor() {
        return color;
    }

    public Shape(String id, Color color) {
        this.id = id;
        this.color = color;
    }
}

class Rectangle extends Shape{
    float width;
    float heigth;

    public Rectangle(String id, Color color,float width, float height) {
        super(id, color);
        this.width=width;
        this.heigth=height;
    }

    @Override
    public float weight() {
        return width*heigth;
    }

    @Override
    public void scale(float scaleFactor) {
        width*=scaleFactor;
        heigth*=scaleFactor;
    }

    @Override
    public int compareTo(Shape o) {
        return Float.compare(this.weight(),o.weight());
    }

    @Override
    public String toString() {
        return String.format("R: %-5s%-10s%10.2f",super.getId(),super.getColor().name(),weight());
    }
}

class Circle extends Shape{

    private float radius;
    public Circle(String id, Color color,float radius) {
        super(id, color);
        this.radius=radius;
    }

    @Override
    public void scale(float scaleFactor) {
        radius*=scaleFactor;
    }

    @Override
    public float weight() {
        return (float)(radius*radius*Math.PI);
    }

    @Override
    public int compareTo(Shape o) {
        return Float.compare(this.weight(),o.weight());
    }

    @Override
    public String toString() {
        return String.format("C: %-5s%-10s%10.2f",super.getId(),super.getColor().name(),weight());
    }
}


enum Color {
    RED, GREEN, BLUE
}
public class ShapesTest {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Canvas canvas = new Canvas();
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            String[] parts = line.split(" ");
            int type = Integer.parseInt(parts[0]);
            String id = parts[1];
            if (type == 1) {
                Color color = Color.valueOf(parts[2]);
                float radius = Float.parseFloat(parts[3]);
                canvas.add(id, color, radius);
            } else if (type == 2) {
                Color color = Color.valueOf(parts[2]);
                float width = Float.parseFloat(parts[3]);
                float height = Float.parseFloat(parts[4]);
                canvas.add(id, color, width, height);
            } else if (type == 3) {
                float scaleFactor = Float.parseFloat(parts[2]);
                System.out.println("ORIGNAL:");
                System.out.print(canvas);
                canvas.scale(id, scaleFactor);
                System.out.printf("AFTER SCALING: %s %.2f\n", id, scaleFactor);
                System.out.print(canvas);
            }

        }
    }
}

class Canvas {
    List<Shape> shapes;

    public Canvas() {
        this.shapes= new ArrayList<>();
    }

    public void add(String id, Color color, float radius) {
            shapes.add(new Circle(id,color,radius));
    }

    public void add(String id, Color color, float width, float height) {
            shapes.add(new Rectangle(id,color,width,height));
    }

    public void scale(String id, float scaleFactor) {
        shapes.stream().filter(i->i.getId().equals(id)).findAny().get().scale(scaleFactor);
    }

    @Override
    public String toString() {
        StringBuilder sb= new StringBuilder();
        shapes= shapes.stream().sorted(Comparator.reverseOrder()).collect(Collectors.toList());
        for(int i=0;i<shapes.size();i++){
            sb.append(shapes.get(i).toString());
            sb.append("\n");
        }
        return sb.toString();
    }
}