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The features of encapsulation are supported using classes in most object-oriented languages, although other alternatives also exist. Encapsulation may also refer to containing a repetitive or complex process in a single unit to be invoked. Object-oriented programming facilitate this at both the method and class levels.
Encapsulation is a means of information hiding. [2] Layered designs in information systems are another embodiment of separation of concerns (e.g., presentation layer, business logic layer, data access layer, persistence layer). [3] Separation of concerns results in more degrees of freedom for some aspect of the program's design, deployment, or ...
Composition over inheritance (or composite reuse principle) in object-oriented programming (OOP) is the principle that classes should favor polymorphic behavior and code reuse by their composition (by containing instances of other classes that implement the desired functionality) over inheritance from a base or parent class. [2]
Object-oriented programming (OOP) is a programming paradigm based on the concept of objects. [1] Objects can contain data (called fields , attributes or properties ) and have actions they can perform (called procedures or methods and implemented in code ).
Mutator methods may also be used in non-object-oriented environments. In this case, a reference to the variable to be modified is passed to the mutator, along with the new value. In this scenario, the compiler cannot restrict code from bypassing the mutator method and changing the variable directly.
Object composition is about combining objects within compound objects, and at the same time, ensuring the encapsulation of each object by using their well-defined interface without visibility of their internals. In this regard, object composition differs from data structures, which do not enforce encapsulation.
Even though object-oriented seems like a superset of object-based, they are used as mutually exclusive alternatives, rather than overlapping. [ citation needed ] Examples of strictly object-based languages – supporting an object feature but not inheritance or subtyping – are early versions of Ada , [ 2 ] Visual Basic 6 (VB6), and Fortran 90 .
Enyo is an open source JavaScript framework for cross-platform mobile, desktop, TV and web applications emphasizing object-oriented encapsulation and modularity. [2] Initially developed by Palm, it was later acquired by Hewlett-Packard in April 2010 and then released under an Apache 2.0 license. [3] [4] It is sponsored by LG Electronics and ...