As shown in the figure, the quadrilateral OABC is a parallelogram (where O is the coordinate origin), the coordinate of point A is (4,0), the straight line L where BC is located passes through point D (0,0 1), and E is the midpoint of OA side, connecting CE and extending, and the intersection line BA is at point F.

(1) Find the area of quadrilateral ABCE;

(2) if CF⊥BF, find the coordinates of B.

The same solution, the first small problem will do.