JSC Science Note2 2nd Chapter Increase of life and inheritance

JSC Science Note2 2nd Chapter Increase of life and inheritance. In object-oriented programming, inheritance is when an object or class is based on another object (prototypal inheritance) or class (class-based inheritance), using the same implementation. Inheritance in most class-based object-oriented languages is a mechanism in which one object acquires all the properties and behaviors of the parent object. Inheritance allows programmers to: create classes that are built upon existing classes [1], to specify a new implementation to maintain the same behavior (realizing an interface), to reuse code and to independently extend original software via public classes and interfaces. The relationships of objects or classes through inheritance give rise to a directed graph.

JSC Science Note2 2nd Chapter Increase of life and inheritance

An inherited class is called a subclass of its parent class or superclass. The term “inheritance” is loosely used for both class-based and prototype-based programming, but in narrow use is reserved for class-based programming (one class inherits from another), with the corresponding technique in prototype-based programming being instead called delegation (one object delegates to another).

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