Classes and Objects
Explore how Java classes provide blueprints for creating objects and how these objects interact by invoking methods to change states. Understand inheritance by examining how subclasses extend superclasses with examples of MobileClass and ZenyClass. This lesson helps you grasp the core concepts of object-oriented programming in Java and prepares you to apply these principles in coding.
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In the previous examples, we have seen that a Java program creates many objects. Objects interact with other objects by changing their states. When they change their states, they actually invoke the methods to do so.
These objects’ interactions accomplish many tasks, from simple to complex such as the implementation of a Graphical User Interface (GUI), an animation, or something else. We have also learned that behind an object there is a blueprint, a class. In those ...