Now, we turn our focus to the mothership of the Java class inheritance hierarchy, java.lang.Object. What you’ll learn in this Java tutorial ...

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.

For example, when analyzing the class hierarchy consecutive pattern, two classes should be tested to see if they are in the same class hierarchy. Java is a single inheritance programming language, so ...