Equivalent of Java interfaces in C++? [duplicate]

Question

Possible Duplicate:
How do you declare an interface in C++?
Interface as in java in c++?

I am a Java programmer learning C++, and I was wondering if there is something like Java interfaces in C++, i.e. classes that another class can implement/extend more than one of. Thanks. p.s. New here so tell me if I did anything wrong.

Answer 1

In C++ a class containing only pure virtual methods denotes an interface.

Example:

// Define the Serializable interface. class Serializable {      // virtual destructor is required if the object may      // be deleted through a pointer to Serializable     virtual ~Serializable() {}      virtual std::string serialize() const = 0; };  // Implements the Serializable interface class MyClass : public MyBaseClass, public virtual Serializable {     virtual std::string serialize() const {          // Implementation goes here.     } };