Excellent work! You’ve learned quite a bundle about inheritance and polymorphism in Java:
- A Java class can inherit fields and methods from another class.
- Each Java class requires its own file, but only one class in a Java package needs a
- Child classes inherit the parent constructor by default, but it’s possible to modify the constructor using
super()or override it completely.
- You can use
finalto control child class access to parent class members.
- Java’s OOP principle of polymorphism means you can use a child class object like a member of its parent class, but also give it its own traits.
- You can override parent class methods in the child class, ideally using the
- It’s possible to use objects of different classes that share a parent class together in an array or
In the code editor, you’ll find a parent class
Noodle and some child classes to play around with. We invite you to experiment with what you’ve learned about inheritance and polymorphism!