Improve geometry class with pattern matching, seal classes and records

Geometry.java

sealed interface Shape {}

record Point(double x, double y) {}

record Square (Point topLeft, double side) implements Shape {}

record Rectangle (Point topLeft, double height, double width) implements Shape {}

record Circle (Point center, double radius) implements Shape {}

class Geometry {
    public final double PI = 3.141592653589793;

    public double area(Shape shape) {
        return switch(shape) {
            case Square s -> s.side() * s.side();
            case Rectangle r -> r.height() * r.width();
            case Circle c -> PI * c.radius() * c.radius();
        };
    }
}