1    package shapes;
2    /* 
3     * Create a program to conceptualize the available work area on a desk given a number of 
4     * objects already covering the desk.  Practice using variables that make sense and use them 
5     * to calculate the area of the objects.  Also use the shapes functionality of the NPW. 
6     *  None of the objects on the desk overlap. 
7     */
8    
9    public class WorkArea {
10       public static void main(String[] args) {
11           //create the desk(24x36in.)
12           SRectangle desk = new SRectangle(24.0, 36.0);
13           //create the 2 books(11x8.5 in.) and find the area the books cover on the desk, also using a variable
14           SRectangle book = new SRectangle(11.0,8.5);
15           double totalbookarea = book.area() * 2.00;
16           //create the 3 dinner plates(radius of 8 in.) and find the area they cover on the desk
17           SCircle plate = new SCircle(8.0);
18           double totalplatearea = plate.area() * 3.00;
19           //create the coaster, whose size is given from the glass, perfectly inscribing the coaster, whose
20           //radius is 1.35 in.
21           SCircle glass = new SCircle(1.35);
22           SSquare coaster = glass.circumscribingSquare();
23           double totalcoasterarea = coaster.area() * 3.00;
24           //create a variable for the collective area of all the objects on the desk
25           double Careaobjects = totalcoasterarea + totalplatearea + totalbookarea;
26           //create a variable for the total working space left on the desk
27           double Tworkingarea = desk.area() - Careaobjects;
28           //display the result to the standard output stream and give a label
29           System.out.println("The area of the two books = " + totalbookarea + " square inches");
30           System.out.println("The area of the three plates = " + totalplatearea + " square inches");
31           System.out.println("The area of the three coasters = " + totalcoasterarea + " square inches");
32           System.out.println("The collective area of all the objects = " + Careaobjects + " square inches");
33           System.out.println("The total area of the desk without anything on it = " + desk.area() + " square inches");
34           System.out.println("The total area of the available work space with all the objects on it = "
35                   + Tworkingarea + " square inches");
36   
37       }
38   
39   }