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Every Java class inherits from Object, so familiarity with this superclass is fundamental to understanding the Java class hierarchy. Also see my Java tip introducing composition vs. inheritance .

Inheritance is a key feature of object-oriented programming (OOP) languages like Java. It allows a class (subclass or derived class) to inherit properties and behavior from another class (superclass ...

Note that multiple inheritance is not supported in OOP programming languages like Java or C#. The next type of inheritance in our list is multi-level inheritance.

Imagine you are an expert object-oriented Java developer who meticulously crafts code the way an artist cares for their masterpiece. You believe clean code is an absolute necessity. Classes with clear ...