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Terminology invoking "objects" in the modern sense of object-oriented programming made its first appearance at the artificial intelligence group at MIT in the late 1950s and early 1960s.
Addition is a binary operation, which means it has two operands.In C++, the arguments being passed are the operands, and the temp object is the returned value.. The operation could also be defined as a class method, replacing lhs by the hidden this argument; However, this forces the left operand to be of type Time:
In object-oriented programming, an interface or protocol type [a] is a data type that acts as an abstraction of a class.It describes a set of method signatures, the implementations of which may be provided by multiple classes that are otherwise not necessarily related to each other. [1]
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.
In object-oriented programming, inheritance is the mechanism of basing an object or class upon another object (prototype-based inheritance) or class (class-based inheritance), retaining similar implementation.
In object-oriented programming languages, and other related fields, encapsulation refers to one of two related but distinct notions, and sometimes to the combination thereof: [5] [6]
Access modifiers (or access specifiers) are keywords in object-oriented languages that set the accessibility of classes, methods, and other members.Access modifiers are a specific part of programming language syntax used to facilitate the encapsulation of components.
Notes [ edit ] ^ Beck 1997 uses the terms "simple delegation" for when the receiving object does not have access to the sending object, and "self delegation" for when the receiving object does have access to the sending object; in modern language these are "forwarding" and "delegation", as used in this article.