Java Reference
In-Depth Information
DAY 3:
Java is a heavily object-oriented programming language. When you do
work in Java, you use objects to get the job done. You create objects,
modify them, move them around, change their variables, call their meth-
ods, and combine them with other objects. You develop classes, create
objects out of those classes, and use them with other classes and
objects.
Today, you work extensively with objects. The following topics are covered:
Creating objects (also called instances)
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Testing and modifying class and instance variables in those
objects
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Calling an object's methods
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Converting objects and other types of data from one class to
another
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