Extend

Definition

In Java, the keyword "extend" is used to create a relationship between two classes where one class inherits the properties and methods of another class. When a class extends another class, it becomes a subclass, and the extended class becomes its superclass.

Related terms

Inheritance:

Inheritance is the process by which one class acquires the properties and behaviors of another class. It allows for code reuse and promotes hierarchical organization in object-oriented programming.

Superclass:

A superclass is the class that is being extended or inherited from. It serves as the base or parent class for one or more subclasses.

Subclass:

A subclass is a derived or child class that extends or inherits from a superclass. It inherits all non-private members (fields and methods) of its superclass while also having its own unique members.