What is the Adapter Pattern in C++ and Java?

Can you explain the Adapter Pattern in C++ and Java?

Sure! The Adapter Pattern allows incompatible interfaces to work together by wrapping an existing class with a new interface.

How does it work in C++?

In C++, you create an adapter class that implements the target interface and holds an instance of the adaptee class.

Can you give me a code example?

Certainly! Here's a simple example:

class Target {
public:
    virtual void request() = 0;
};

class Adaptee {
public:
    void specificRequest() {
        // Implementation
    }
};

class Adapter : public Target {
private:
    Adaptee* adaptee;
public:
    Adapter(Adaptee* a) : adaptee(a) {}
    void request() override {
        adaptee->specificRequest();
    }
};

What about in Java?

In Java, the concept is similar. You create an interface and an adapter class that implements this interface while using an instance of the adaptee class.