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Encapsulation (computer programming) In software systems, encapsulation refers to the bundling of data with the mechanisms or methods that operate on the data. It may also refer to the limiting of direct access to some of that data, such as an object's components. [ 1] Essentially, encapsulation prevents external code from being concerned with ...
Field encapsulation. In computer programming, field encapsulation involves providing methods that can be used to read from or write to the field rather than accessing the field directly. Sometimes these accessor methods are called getX and setX (where X is the field's name), which are also known as mutator methods.
Access modifiers are a specific part of programming language syntax used to facilitate the encapsulation of components. [ 1] In C++, there are only three access modifiers. C# extends the number of them to six, [ 2] while Java has four access modifiers, but three keywords for this purpose. In Java, having no keyword before defaults to the ...
Mutator method. In computer science, a mutator method is a method used to control changes to a variable. They are also widely known as setter methods. Often a setter is accompanied by a getter, which returns the value of the private member variable. They are also known collectively as accessors .
Information hiding. In computer science, information hiding is the principle of segregation of the design decisions in a computer program that are most likely to change, thus protecting other parts of the program from extensive modification if the design decision is changed. The protection involves providing a stable interface which protects ...
Abstraction (computer science) In software engineering and computer science, abstraction is the process of generalizing concrete details, [ 1] such as attributes, away from the study of objects and systems to focus attention on details of greater importance. [ 2] Abstraction is a fundamental concept in computer science and software engineering ...
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 ...
Method (computer programming) A method in object-oriented programming (OOP) is a procedure associated with an object, and generally also a message. An object consists of state data and behavior; these compose an interface, which specifies how the object may be used. A method is a behavior of an object parametrized by a user.