6-1 Circle_Object

Post date: Apr 9, 2014 9:07:23 PM

package circle_object;

public class Circle 

{

       private double radius; 

       void Set_Radius(double r)

       {

          radius=r; 

       }

       double get_Radius()

       {

          return radius; 

       }

       double Display_Area()

       {

          return Math.pow(radius,2)*Math.PI; 

       }

}

package circle_object;

public class Circle_Object 

{

    public static void main(String[] args) 

    {

            Circle box=new Circle();  // Create a Circle object. 

            box.Set_Radius(4);

            System.out.println("The area of the circle of radius " + box.get_Radius()+" is " + box.Display_Area());

    }

}