SurfaceAreaOfCube.java
1    /* 
2     * Program that features two functions to compute the surface area of a cube. 
3     * - The edge length will be read from the standard input stream. 
4     * - The surface area will be printed to the standard output stream. 
5     * - A face of the cube will be modeled as a simple square. 
6     */
7    
8    package mathematics;
9    import java.util.Scanner;
10   import shapes.SSquare;
11   public class SurfaceAreaOfCube {
12       public static void main(String[] args) {
13           double edgeLength = edgeLength();
14           double surfaceArea = surfaceArea(edgeLength);
15           System.out.println("surface area = " + surfaceArea);
16       }
17       private static double edgeLength() {
18           System.out.print("Please enter the edge length of the cube: ");
19           Scanner scanner = new Scanner(System.in);
20           double edgeLength = scanner.nextDouble();
21           return edgeLength;
22       }
23       private static double surfaceArea(double edgeLength) {
24           SSquare face = new SSquare(edgeLength);
25           int nrOfFaces = 6;
26           double surfaceArea = face.area() * nrOfFaces;
27           return surfaceArea;
28       }
29   }
30