class Point
{
  // Attributes
  public double x;
  public double y;

  // Default Constructor
  public Point ()
  {
    x = 0.0;
    y = 0.0;
  }

  // Non-default constructor
  public Point (double x, double y)
  {
    this.x = x;
    this.y = y;
  }

  public double dist (Point p)
  {
    return Math.sqrt ((x - p.x) * (x - p.x) + (y - p.y) * (y - p.y));
  }

  public String toString ()
  {
    String str = "(" + x + ", " + y + ")";
    return str;
  }

  public boolean equals (Point p)
  {
    return ((x == p.x) && (y == p.y));
  }
}

class Circle
{
  // Attributes
  private double radius;
  private static int numCircles = 0;
  private Point center;

  // Default Constructor
  public Circle ()
  {
    radius = 0.0;
    center = new Point ();
    numCircles++;
  }

  // Non-default Constructor
  public Circle ( double radius, double x, double y)
  {
    this.radius = radius;
    center = new Point (x, y);
    numCircles++;
  }

  public Circle (double radius, Point p)
  {
    this.radius = radius;
    center = new Point(p.x, p.y);
    numCircles++;
  }

  // Accessors
  public double getRadius ()
  {
    return radius;
  }

  public Point getCenter ()
  {
    return center;
  }


  public int getNumCircles ()
  {
    return numCircles;
  }

  // Mutators
  public void setRadius (double radius)
  {
    this.radius = radius;
  }

  public void setCenter (double x, double y)
  {
    center.x = x;
    center.y = y;
    // center = new Point (x, y);
  }
  
  // Other Methods
  public double calcCircum ()
  {
    return 2.0 * Math.PI * radius;
  }

  public  double calcArea ()
  {
    return Math.PI * radius * radius;
  }

  public static double calcArea (double radius)
  {
    return Math.PI * radius * radius;
  }

  public boolean isInside (Point p)
  {
    return center.dist(p) < radius;
  }

  public boolean isInside (Circle c)
  {
    return (center.dist(c.getCenter()) + c.getRadius()) < radius;
  }

  public boolean doesIntersect (Circle c)
  {
    return (center.dist(c.getCenter())) < (radius + c.getRadius());
  }

  public String toString ()
  {
    String str = "Radius: " + radius + ", " + "Center: " + center;
    return str;
  }

}

public class TestCircle
{
  public static void main (String[] args)
  {

  }
}