July 2015
Beginner to intermediate
280 pages
6h 10m
English
Content preview from Learning Object-Oriented ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Generating blueprints for objects
Imagine that you want to draw and calculate the areas of four different rectangles. You will end up with four rectangles drawn, with their different widths, heights, and calculated areas. It would be great to have a blueprint to simplify the process of drawing each rectangle with their different widths and heights.
In object-oriented programming, a class is a blueprint or a template definition from which the objects are created. Classes are models that define the state and behavior of an object. After defining a class that defines the state and behavior of a rectangle, we can use it to generate objects that represent the state and behavior of each real-world rectangle.
Tip
Objects are also known as instances. For ...
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