Problem solve Get help with specific problems with your technologies, process and projects.

What is a multiple inheritance?

What is a multiple inheritance?
Multiple inheritance is an object-oriented term indicating the ability of a child class to use or "inherit" functionality of multiple parent classes.

In the C++ programming language, this concept is expressed in class "AChild", as follows:

class Parent1 {...};

class Parent2 {...};

class AChild : public Parent1, public Parent2 {...};

The Java programming language does not support the concept of multiple inheritance of classes, but it does support the concept of multiple interface inheritance.

Let's take a look at a simple example of multiple interface inheritance using the Java programming language.

First, we define the first parent interface:

public interface Parent1


public void sayHello();


Now, we define the second parent interface:

public interface Parent2


public void sayGoodbye();


Now, we define a child interface which inherits from both parent interface, using the "extends" keyword:

public interface AChild extends Parent1, Parent2



With these definitions in place, a class that implements the AChild interface will be required to implement the sayHello method and the sayGoodbye method.

Dig Deeper on Topics Archive

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.