كيف أحسب مساحة دائرتين بإستخدام الجافا

About how to find circle area

This code help u to find hight width

class Circle extends Shape {
   private int radius;

   // constructor
   Circle(int newx, int newy, int newradius) {
	  super(newx, newy);
	  setRadius(newradius);
   }

   // accessors for the radius
   int getRadius() { return radius; }
   void setRadius(int newradius) { radius = newradius; }

   // draw the circle
   void draw() {
	  System.out.println("Drawing a Circle at:(" + getX() + ", " + getY() +
		 "), radius " + getRadius());
   }
}

All u have to do is culc Circle area

For circle 1 and 2

Than Total Area = Area2 - Area1

Note:

ِCircle Area = 3.14 * red* red