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History The object-oriented paradigm took its shape from the initial concept of a new programming approach, while the interest in design and analysis methods came much later. Alan Kay and his research group at Xerox PARK developed the Dynabook perso...
Concept Everything is a Concept & Object. From the above image, we can see that an abstract concept CAR acts as a class, we can initialize a car with various objects. And here polo, mini, and beetle are objects. The image above shows how a Car obje...
Quote Once an object escapes, you have to assume that another class or thread may, maliciously or carelessly, misuse it. This is a compelling reason to use encapsulation; it makes it practical to analyze programs for correctness and harder to violate...
We just gotta know how it works or what functionalities it offers, rather than how it is implemented internally. Scenario Who doesn't love a pay-day! But all we do is Go to an ATM, Insert an ATM card, Enter the amount, Enter the pin, And coll...
Same Same but Different. Scenario An individual can have different relationships with different people. A woman can be a mother, a daughter, a sister, or a friend, all at the same time, i.e. she performs other behaviors in different situations. Ano...
Reuse, Reuse, and Reuse. Scenario The capacity to talk, breathe, eat and drink are just a few of the traits we get from the class Parent to Children. The example of automobiles is another option. The class "Car" derives some of its attributes from...
