Http://www.cnblogs.com/fly1988happy/archive/2012/09/25/2701237.html1. polymorphicIn object-oriented languages, many different implementations of interfaces are polymorphic. Polymorphism refers to an instance (object) of a child class with a pointer
Because both C + + and Java are object-oriented programming languages, their polymorphism is achieved by virtual functions and abstract functions, respectively.The virtual function of C + + can be overridden in subclasses, and the invocation is
Original: http://www.cnblogs.com/blsong/archive/2010/08/12/1798064.htmlIn C # Learning, it is easy to confuse the use of virtual and abstract methods, now to discuss the difference between the two. Both involve the use of a mate with override in a
In C # Learning, it is easy to confuse the use of virtual and abstract methods, now to discuss the difference between the two. Both involve the use of a mate with override in a derived class.First, virtual method (virtual method)The virtual keyword
Http://www.cnblogs.com/blsong/archive/2010/08/12/1798064.htmlIn C # Learning, it is easy to confuse the use of virtual and abstract methods, now to discuss the difference between the two. Both involve the use of a mate with override in a derived
Abstract and Virtual: method overrides use the Override keyword, both the method in interface and the abstract method require implementationInterface used to declare an interface1. Only some method specifications are provided, and no method body is
Abstract classYou can declare a class as an abstract class by placing the keyword abstract before the class definition. Abstract classes cannot be instantiated. The purpose of an abstract class is to provide a generic base class definition that can
Learning Design Patterns When a lot of use of abstract classes and interfaces, used to feel they are a bit similar, but also a bit confused, in the end interface and abstract class what is the difference? Today I tried to get them to unravel the
In C # Learning, it is easy to confuse the use of virtual and abstract methods, now to discuss the difference between the two. Both involve the use of a mate with override in a derived class.First, virtual method (virtual method)The virtual keyword
base class
Class Shape {public
:
shape () {
cout
Sub Class
Class Circle:public Shape {public
:
Circle () {
cout
class object vs class Pointer
object of the class: Circle Circle;a pointer to a class: circle* p_circle =
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