void main() {
Point point1 = Point(1, 1);
Point2 point2 = Point2(10, 10);
print(point2);
print("toString has been override");
print(point1);
}
class Point {
double x, y;
Point(this.x, this.y);
@override
String toString() {
return "$x : $y";
}
}
class Point2 {
double x, y;
Point2(this.x, this.y);
}