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This category is for object-oriented languages that are class-based: class-based object-oriented languages, OO with classes.
Class-based object-oriented languages are OO with classes. Instances of objects are made by inheriting a master class. The original one was Simula.
This category is for prototype-based languages: classless object-oriented languages, OO without classes.
Prototype-based languages are classless object-oriented languages, OO without classes. Instances of objects are made by cloning other instances. Usually, these languages have only one data structure, the associative array. Such languages are very flexible during runtime, and far simpler than class-based languages. The original one was Self.
In Pure object-oriented (OO) languages, everything in the system is, consistently, an object, without exception: every class, instance, method, character, punctuation mark, etc. Consistency makes much programming easier to learn and do, faster, and more productive. In non-pure OO languages (C++, Java, etc.), some things are, inconsistently, not objects: classes, primitives (characters, punctuation), etc. Inconsistency makes much programming harder to learn and do, slower, and less productive. On this page, languages are arranged in two groups and levels: 1) Top group: types or classes of language. 2) Bottom group: specific languages.
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Last update: Sunday, June 15, 2014 8:54:09 AM EDT - edit