Method getHeight

Examples/NoModules/Chapter 13/Ex13_01/Box.h:16–16

  double getLength() const { return m_length; }
  double getWidth()  const { return m_width; }
  double getHeight() const { return m_height; }

  bool operator<(const Box& aBox) const     // Less-than operator
  { return volume() < aBox.volume(); }