/* An "enhanced" Room class -- a room has:  length, width, height.
 * We have 3 different constructors, which makes for greater flexibility when
 * we want to create a Room object.  
 * Then we have the operations for calculating the cost to paint the room.
 */

import java.io.*;               // tell compiler we'll need I/O

public class Room
{
  private double length;
  private double width;
  private double height;

  // Default constructor -- If we want to create a Room object, but don't
  // specify the size, then we'll ask the user.
  public Room() throws IOException
  {
    BufferedReader kbd = new BufferedReader (new InputStreamReader(System.in));

    System.out.print("What is the length of the room (in feet)?  ");
    length = Double.parseDouble(kbd.readLine());

    System.out.print("What is the width of the room (in feet)?  ");
    width = Double.parseDouble(kbd.readLine());

    System.out.print("What is the height of the room (in feet)?  ");
    height = Double.parseDouble(kbd.readLine());
  }

  // Initial-value constructor -- Just set the room attributes equal to
  // the values of the parameters coming in.
  public Room(double l, double w, double h)
  {
    length = l;
    width = w;
    height = h;
  }

  // Copy constructor.  Create a room object exactly like an existing one
  // called "r".
  public Room(Room r)
  {
    length = r.length;
    width = r.width;
    height = r.height;
  }

  // Finally, operations to help us find the cost to paint the room.
  public double getAreaWalls()
  {
    return 2.0 * (length * height + width * height);
  }

  public double getAreaCeiling()
  {
    return length * width;
  }

  public double getCost()
  {
    return 0.03 * getAreaWalls() + 0.05 * getAreaCeiling();
  }
}