Method setHeight

Examples/NoModules/Chapter 20/Ex20_08/Box.h:19–19

  void setLength(double length) { if (length > 0) m_length = length; }
  void setWidth(double width)   { if (width > 0) m_width = width; }
  void setHeight(double height) { if (height > 0) m_height = height; }

  // Function to calculate the volume of a box
  double volume() const { return m_length * m_width * m_height; }