Difference between revisions of "Instance variable"
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(New page: An '''instance variable''' is available only to one instance of a class. It is the object's own property. For example, a particular square may be 4 inches wide. Other squares may have diff...) |
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A [[class variable]], by contrast, is available to all instances of a class. It is a property which is the same for all objects. For example, the interior angle of every square is 90 degrees, no matter how wide the square is. | A [[class variable]], by contrast, is available to all instances of a class. It is a property which is the same for all objects. For example, the interior angle of every square is 90 degrees, no matter how wide the square is. | ||
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Revision as of 20:12, December 10, 2008
An instance variable is available only to one instance of a class. It is the object's own property. For example, a particular square may be 4 inches wide. Other squares may have different widths.
A class variable, by contrast, is available to all instances of a class. It is a property which is the same for all objects. For example, the interior angle of every square is 90 degrees, no matter how wide the square is.