A hexahedron is a three-dimensional shape with six faces. In this problem, a class which represents a hexahedron with squares at the top and the bottom as shown below will be implemented. Assume that...

A hexahedron is a three-dimensional shape with six faces. In this problem, a class which represents a hexahedron with squares at the top and the bottom as shown below will be implemented.

Assume that hexahedrons are made of different materials; therefore, the weight needs to be kept along with the side and the height in order to describe a particular hexahedron. The following code implements data members and a portion of the constructors of Hexahedron class. Complete the first six constructors to call the last one by using the reserved word this.