main(){
Circle[] circleArr = new Circle[2];
circleArr[0] = new Circle(10);
circleArr[1] = new Circle(10);
//System.out.println(circleArr[0].getArea());
//System.out.println(circleArr[1].getArea());
double areas = Circle.getArrArea(circleArr);
System.out.println(areas);
String[] strArr = new String[3];
strArr[0] = "ABCDER";
strArr[1] = "ABCDER";
strArr[3] = "ABCDER";
double areas = Rectangle.getArrArea(recArr);
System.out.println(areas);
Rectangle[] recArr = new Rectangle[2];
recArr[0] = new Rectangle(10,20);
recArr[1] = new Rectangle(10,30);
areas = Rectangle.getArrArea(recArr);
System.out.println(areas);