Use Java's extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, override methods, and more.

When to use inheritance in Java When to use composition in Java Differences between inheritance and composition Method overriding with Java inheritance Using constructors with inheritance Type ...

Constructors play a key role in all object-oriented programming languages, and Java is no exception. Every class a Java developer creates needs a constructor. Constructors perform numerous important ...

How to use Java's default constructor Although the default constructor in Java is convenient and easy to use, developers must understand some important rules about its existence and implementation.