Polymorphism is the ability of an object to exhibit multiple behaviors. C++ allows two types of polymorphism, Static and Dynamic. Static polymorphism happens at compile time via function overloading whereas Dynamic polymorphism is exhibited at run time via function overriding.
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Visitor pattern is a behavioral pattern that allows addition of new features to a class without actually modifying the class. Visitor pattern is one way of implementing the Open/ Close principle (which is one of the SOLID principles).
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Softwares are susceptible to change. A new requirement can come-up any time and the software should be able to handle this change effectively with minimum intrusion. A software that is well designed can easily adapt to these ever-changing requirements and hence a good design is of utmost importance especially when it comes to design and development of a commercial software.
Continue reading “Object Oriented Software – GOF Design Patterns”
A class or a function can be made a friend of another class in C++. A friend gets access to all the private members and protected members of the class to which it becomes a friend.
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A constructor is a special member function that is automatically called when you create an instance of a class. Continue reading “C++ – Constructor”
The idea of inheritance implements an IS-A relationship between classes.
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When a class inherits from another class, it is possible to override the public methods of the base-class in the derived-class.
Continue reading “C++ – Virtual Functions”