I have a base class A and classes B and C are derived from it. A is an abstract class, and all three classes have a constructor that takes 2 arguments. Is it possible to make a method in the base clas
class File(object): def __init__(self, filename): if os.path.isfile(filename): self.filename = filename self.file = open(filename, \'rb\')
I create base generic class with no fields with just one method public class Base<T> where T:class
I want to create a method which will take some base type a开发者_运维百科s a parameter and compares and check if it is derived type and return the derived type based on that.
class A{ public: virtual char &operator[](int); protected: .. }; class B:A{ public: A* &operator[](int);
Again, I really hope this isn\'t a matter of opinion; I\'m trying to know which is the best way to determine the type of an object that belongs to a certain hierarchy in C#. I have two ways to design
Consider the following simple polymorphism ... class Parent { public: someFunc() { /* implementation A */ };
Suppose we have declared these two classes: public class Animal { //..... } public class Dog : Animal { //.....
What does the following code do? class Base { } class Derived : Base { } cl开发者_如何学Cass Test {
In OOP PHP, if I have a function defined in the parent class, and a modified version in the child class, and I call it from an i开发者_如何学运维nstantiated object of the child class, will it use the
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