Question

If I have a constructor called Point inside class Point:

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

How can I use it another class called Square and initialize the points. For example, I want to initialize 4 points in a square. How can I do that?

I don’t know if that makes sense. But, I tried my best… ask me questions so that I can explain better.

Answer 1

If you want to have a Square with for points, make them attributes:

class Square {
    Point p1, p2, p3, p4;
    public Square() {
      p1 = new Point(0,0);
      p2 = new Point(0,0);
      p3 = new Point(0,0);
      p4 = new Point(0,0);
    }
}

Of course, there are a zillion other ways of defining and using this. It will depend primarily on your class / program design what you should choose.