SurfaceAreaOfCube.java
package mathematics;
import java.util.Scanner;
import shapes.SSquare;
public class SurfaceAreaOfCube
{
public static void main (String []args)
{
    double edgeLength = edgeLength();
    double surfaceArea = surfaceArea(edgeLength);
    System.out.println("surface area = " + surfaceArea);
}

private static double edgeLength ()
{

    System.out.println("Please enter the edge length of the cube: ");
    Scanner scanner = new Scanner (System.in);
    double edgeLength = scanner.nextDouble();
    return edgeLength;


}

private static double surfaceArea(double edgeLength)
{

    SSquare face = new SSquare(edgeLength);
    int nrOfFaces = 6;
    double surfaceArea = face.area() * nrOfFaces;
    return surfaceArea;

}
// you get a surface area of 337.5 when you enter 7.5 units
// you get a surface area of 1006.2149999999999 when you enter 12.95 units
}