Object-oriented programming

Object-oriented programming

1. what is an object?

   • containing members of variable and function types. The variables contained make up the data stored in the object, and the functions contained allow access to the object’s functionality. Slightly more complex objects might not maintain any data; instead, they can represent a process by con- taining only functions. For example, an object representing a printer might be used, which would have functions enabling control over a printer (so you can print a document, a test page, and so on).
     • Components
       • Properties and Fields
         • The various pieces of data contained in an object together make up the state of that object. Imagine an object class that represents a cup of coffee, called CupOfCoffee. When you instantiate this class (that is, create an object of this class), you must provide it with a state for it to be meaningful
           • According to the text, for me, object-oriented programming is a way to facilitate the way of handling things, a clear example of this would be the way we replace some part of a computer and instead of replacing everything, just replace a small part for better performance
       • Methods
         • Methods are used to provide access to the object’s functionality. Like fields and properties, they can be public or private, restricting access to external code as necessary