public class Pool
 {private double radius;
  private double height;
  
  public Pool()
   {radius = 0;
     height = 0;
    }
  
  
  public Pool(double r, double h)
   {radius = r;
     height = h;
    }
        
 public void printCircumference()
  {System.out.print(radius * 2 * Math.PI);
       }
       
  public double getCircumference()
   {return radius * 2 * Math.PI;
    }
   
  public void printArea()
   {System.out.println(Math.PI * Math.pow(radius,2));
    }
    public double getArea()
   {return Math.PI * Math.pow(radius,2);
    } 
    
  public void printVolume()
   {double ar = getArea();
     System.out.println(ar*height);
    }
    
   public void addOnToRadius(double r)
     {radius = radius + r;
        }
        
    public void addOnToHeight(double h)
     {height = height + h;
        }
        
     public void changeRadius(double r)
      {radius = r;
        }
        
       public void changeHeight(double h)
      {height = h;
        }
        
        public void printSurfaceArea()
        {double sa = getCircumference() * height;
            System.out.println(sa);
        }
 }