Exercise #12

This assignment will give you practice with inheritance and polymorphism.

1. Create an abstract Solid base class. It should consist of:
• data members to represent the (x,y,z) coordinates of a solid in 3D space
• at least one constructor
• a function that displays the coordinates of a Solid object as (x,y,z)
• pure virtual functions that:
return the volume of the object
return the surface area of the object
return the type of the solid
print "specialized" details about a Solid object (i.e. radius, height, width, …)

• a non-virtual function that prints all information about a Solid object (it should call the 5 functions listed above)
2. Derive from the Solid class the following classes:
• RectangularSolid
This class should have three members: length, width, and height.

• Sphere
This class should have one member, radius.

• Cylinder
This class should have two data members, radius and height.

• Cone
This class should have two data members, radius and height.

3. From the RectangularSolid class, derive a Cube class. It does not have any data members. It only needs a constructor, a type function, and a "print details" function.

You may need the following formulas for this assignment

Use the following main() as a final test of your program:
int main() {
    RectangularSolid        Rec(1.,2.,3.,4.,5.,6.);
    Sphere            Sph(1.,2.,3.,4.);
    Cylinder            Cyl(1.,2.,3.,4.,5.);
    Cone            Con(1.,2.,3.,4.,5.);
    Cube            Cub(1.,2.,3.,4.);
    Solid*            ps;

    // Rectangular Solid test
    ps = &Rec;
    ps->print();

    // Sphere test
    ps = &Sph;
    ps->print();

    // Cylinder test
    ps = &Cyl ;
    ps->print();

    // Cone test
    ps = &Con ;
    ps->print();

    // Cube test
    ps = &Cub ;
    ps->print();
    return 0;
}

******  Program Output  ******

I am a rectangular solid located at (1,2,3)
length=4 width=5 height=6
volume=120 surface area=148

I am a sphere located at (1,2,3)
radius=4
volume=268.082 surface area=???

I am a cylinder located at (1,2,3)
radius=4 height=5
volume=??? surface area=???

I am a cone located at (1,2,3)
radius=4 height=5
volume=??? surface area=???

I am a cube located at (1,2,3)
side=4
volume=64 surface area=???