Laboratory 5: Polymorphism

• Polymorphism (Exercise!!!)

           shapes.exe [ .exe ]
             |
             +-- shapes.h
             |
             +-- shapes.cpp
             |
             +-- shapemain.cpp
  
           (Makefile shapes.make)
         

  Document the code. Add a new subclass of shape called triangle and implement the methods. Add a new subclass of rectangle called square.Can you implement square just by implementing its default constructor?
  
  
• Operator Overloading

           frac.exe [ .exe ]
             |
             +-- fraction.h
             |
             +-- fraction.cpp
             |
             +-- fractionmain.cpp
  
           (Makefile frac.make)
         

  Study the code. Why some operators are implemnted as member functions while others aren't? What is the advantage of implementing all comparisons using operator< ?