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  2. Object diagram - Wikipedia

    en.wikipedia.org/wiki/Object_diagram

    "An object diagram is a graph of instances, including objects and data values. A static object diagram is an instance of a class diagram; it shows a snapshot of the detailed state of a system at a point in time. The use of object diagrams is fairly limited, namely to show examples of data structure."

  3. Factory method pattern - Wikipedia

    en.wikipedia.org/wiki/Factory_method_pattern

    This Java example is similar to one in the book Design Patterns. The MazeGame uses Room but delegates the responsibility of creating Room objects to its subclasses that create the concrete classes. The regular game mode could use this template method:

  4. Active object - Wikipedia

    en.wikipedia.org/wiki/Active_object

    The pattern consists of six elements: [3] A proxy, which provides an interface towards clients with publicly accessible methods. An interface which defines the method request on an active object. A list of pending requests from clients. A scheduler, which decides which request to execute next. The implementation of the active object method.

  5. Data, context and interaction - Wikipedia

    en.wikipedia.org/wiki/Data,_context_and_interaction

    An example of a data object could be a bank account. Its interface would have basic operations for increasing and decreasing the balance and for inquiring about the current balance. The interface would likely not offer operations that involve transactions, or which in any way involve other objects or any user interaction.

  6. Class diagram - Wikipedia

    en.wikipedia.org/wiki/Class_diagram

    The classes in a class diagram represent both the main elements, interactions in the application, and the classes to be programmed. In the diagram, classes are represented with boxes that contain three compartments: The top compartment contains the name of the class. It is printed in bold and centered, and the first letter is capitalized.

  7. Object-oriented programming - Wikipedia

    en.wikipedia.org/wiki/Object-oriented_programming

    Objects can contain other objects in their instance variables; this is known as object composition. For example, an object in the Employee class might contain (either directly or through a pointer) an object in the Address class, in addition to its own instance variables like "first_name" and "position".

  8. Interface (object-oriented programming) - Wikipedia

    en.wikipedia.org/wiki/Interface_(object-oriented...

    For example, in Java, the Comparable interface specifies a method compareTo() which implementing classes must implement. This means that a sorting method, for example, can sort a collection of any objects of types which implement the Comparable interface, without having to know anything about the inner nature of the class (except that two of ...

  9. Programming paradigm - Wikipedia

    en.wikipedia.org/wiki/Programming_paradigm

    In object-oriented programming, code is organized into objects that contain state that is owned by and (usually) controlled by the code of the object. Most object-oriented languages are also imperative languages. In object-oriented programming, programs are treated as a set of interacting objects.