Can a Java class be extended?

Difference: implements means you are using the elements of a Java Interface in your class. extends means that you are creating a subclass of the base class you are extending . You can only extend one class in your child class, but you can implement as many interfaces as you would like.

Java allows extending class to any class, but it has a limit . It means a class can extend only a single class at a time. Extending more than one class will lead to code execution failure. When a class extends a class, then it is called single inheritance .

To create a sub class (child) from a Java super class (parent), the keyword extends is used. You then follow the “extends” keyword with the parent class you want to extend.

The extends keyword extends a class (indicates that a class is inherited from another class ). In Java, it is possible to inherit attributes and methods from one class to another. We group the “inheritance concept” into two categories: subclass (child) – the class that inherits from another class.