What is meant by predefined class?

For this purpose, objects are created from predefined classes, which are normally parameterized by specific configuration objects, so that you can adapt them to application-specific requirements . In contrast, white-box frameworks are designed so that you can derive subclasses from specific classes.

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What is a built in class?

A built-in class is a class whose instances have restricted capabilities or special representations . Attempting to use defclass to define subclasses of a built-in class signals an error of type error. Calling make-instance to create an instance of a built-in class signals an error of type error.

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What is a built in class?

A built-in class is a class whose instances have restricted capabilities or special representations . Attempting to use defclass to define subclasses of a built-in class signals an error of type error. Calling make-instance to create an instance of a built-in class signals an error of type error.

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