Lesson 18 - Type casting and object hierarchy in Java
In the previous lesson, Interfaces in Java, we learned about interfaces and created a Pterodactyl class in Java. In today's tutorial, we'll continue working on our interface project. We will also go over type casting and reveal more secrets of the object-oriented programming.
Let's go back to our previous project and change the code in the main() method to have our pterodactyl stored in a variable of the BirdInterface type:
BirdInterface bird = new Pterodactyl();
We're allowed to do that because the Pterodactyl class implements
...End of the preview...
You've come here and that's great! We believe that the first lessons showed you something new and useful
Do you want to continue the course? Go to the premium section.
- Unlimited and permanent access to individual lessons.
- High quality IT knowledge.
- Skills to help you get your dream and well-paid job.
Requested article covers this content:
You'll learn how to cast an instance to another data type using interfaces in Java. You will also learn about and create an object hierarchy.
You gain points by supporting our network. This is done by sending a helpful amount of money to support the site, or by creating content for the network.