Quadrilateral Constructor #3
This constructor is for convenience only: public Quadrilateral( Point p1, Point p2, Point p3, Point p4 ) { // invoke constructor #2: this( p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y ); }
Here, x and y are variables of the Point class