
C# 7 and .NET Core: Modern Cross-Platform Development

An object in the real world is a thing, such as a car or a person. An object in programming often represents something in the real world, such as a product or bank account, but can also be something more abstract.
In C#, we use class
(usually) or struct
(rarely) to define each type of object. You can think of a type as being a blueprint or template for an object.
Encapsulation is the combination of the data and actions that are related to an object. For example, a BankAccount
type might have data, such as Balance
and AccountName
, as well as actions, such as Deposit
and Withdraw
. When encapsulating, you often want to control what can access those actions and the data.
Composition is about what an object is made of. For example, a car is composed of different parts, such as four wheels, several seats, an engine, and so on.
Aggregation is about what is related to an object. For example, a person could sit in the driver's seat and then becomes the car's driver.
Inheritance is...
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