ShippingContainer.java
package shapes;
import java.util.Scanner;

public class ShippingContainer {

    public static void main(String[] args) {
                    Scanner widthScanner = new Scanner(System.in);
                  Scanner lengthScanner = new Scanner(System.in);
                   Scanner heightScanner = new Scanner(System.in);
                   System.out.println("Type width, length, and height separately");
                   double width = widthScanner.nextDouble();
                   double length = lengthScanner.nextDouble();
                   double height = heightScanner.nextDouble();

                   SRectangle face = new SRectangle(width, length);
                   SRectangle key = new SRectangle(face.diagonal(), height);
                   double distance = key.diagonal();
                   System.out.println("Length of object: " + distance);
}
}