polymorphism tag

3 questions

1 answers
66 views
0

When is a virtual extinction used?

I understand that I have virtual attached to the constructor or other function,I don't know why virtual is used for extinction.When an object disappears, it automatically calls for an inherited class,...

c++ polymorphism virtual-destructor

2 years ago

1 answers
97 views
0

C++ Overriding, Polymorphism

Hello.The code I'm trying to do,class Shape { protected: int type; // POINT, CIRCLE, RECTANGLE, or TRIANGLE public: virtual double area()=0; virtual bool isContaining(const Point&)=0; enum {...

c++ overriding polymorphism

2 years ago

1 answers
82 views
0

Is List a subclass of List? Why is Java generic implicitly not guaranteed polymorphism?

It's confusing how Java Generics deals with inheritance and polymorphism.Let's say there's a hierarchy like this.Animal (Parent)Dog - Cat (child) Assuming that there is a DoSomething(List<Animal>...

inheritance java generics polymorphism

2 years ago

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