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Abstract class Definition from Language, Idioms & Slang Dictionaries & Glossaries
abstract class
in object-oriented programming, a class designed only as a parent from which sub-classes may be derived, but which is not itself suitable for instantiation. often used to "abstract out" incomplete sets of features which may then be shared by a group of sibling sub-classes which add different variations of the missing pieces.
Abstract class Definition from Computer & Internet Dictionaries & Glossaries
A class that contains one or more abstract methods , and therefore can never be instantiated. Abstract classes are defined so that other classes can extend them and make them concrete by implementing the abstract methods.
An abstract class can have abstract methods that are not implemented in the abstract class, but in subclasses.
An abstract class can have abstract methods that are not implemented in the abstract class, but in subclasses.
Abstract class Definition from Encyclopedia Dictionaries & Glossaries
In programming languages, an abstract type is a type in a nominative type system which cannot be instantiated. (However, it may have concrete subtypes that do have instances.) An abstract type may have no implementation, or an incomplete implementation. It may include abstract methods or abstract properties that are shared by its subtypes.
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