interfaz de usuario con ejemplo de código c ++

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Ejemplo: interfaces en c++

#include#include//Pure virtual function or inteface allows us to define a function in a base class that doesn't have an implementation or definition in the base class and force sub classes to implement that function//Pure virtual function is also called an interface in other languagesclassEntitypublic://virtual std::string GetName()  return "Entity"; //This is a function that is just virtual .Overriding this function in sub class is optional we can instantiate subcllass without overriding  or implementing this function//Below is an example a Pure Virtual Function//It is an unimplemented function ant it forces the  sub class to implement it and define it//You will not be able to instantiate sub class without implementing or defining the function in sub classvirtual std::string GetName()=0;//the pure virtual function must have virtual written at the beginning and =0 at the end//This function cannot contain any definition in base class,it is just a declaration;classPlayer:publicEntity
	std::string m_name;public:Player(const std::string& name):m_name(name);voidPrint() std::cout <<"This is Sub class"<< std::endl;;
	std::string GetName()override return m_name;;//Pure virtual functions is implemented here in this sub class;intmain()//Entity a;//We can't do this because class Entity contains function that is unimplemented
	Player x("Jacob");//This will work because we have implemented or defined the function in this sub class
	std::cin.get();

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