Untitled

class Point
{
    private int x;
    private int y;

    // Konstruktor domyślny
    public Point()
    {
        x = 0;
        y = 0;
    }

    public Point( int x, int y )
    {
        this.x = x;
        this.y = y;
    }

    public int getX()
    {
        return x;
    }

    public int getY()
    {
        return y;
    }

    public Point add( Point other )
    {
        return new Point( x + other.x, y + other.y );
    }

    public Point subtract( Point other )
    {
        return new Point( x - other.x, y - other.y );
    }

    public static Point operatorStar( Point p1, Point p2 )
    {
        return new Point( p1.x * p2.x, p1.y * p2.y );
    }

    @Override
    public String toString()
    {
        return "( " + x + ", " + y + " )";
    }
}

public class Main
{
    public static void main(String[] args)
    {
        Point p1 = new Point(1, 2);
        Point p2 = new Point(3, 4);

        Point p3 = p1.add(p2);
        Point p4 = p1.subtract(p2);

        Point p5 = Point.operatorStar(p3, p4);

        System.out.println("Punkt p1: " + p1);
        System.out.println("Punkt p2: " + p2);
        System.out.println("Dodawanie: " + p3);
        System.out.println("Odejmowanie: " + p4);
        System.out.println("Mnożenie: " + p5);
    }
}