April 2019
Beginner to intermediate
698 pages
15h 15m
English
Content preview from Android Programming with Kotlin for BeginnersBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Visibility modifiers
Visibility modifiers are used to control the access/visibility of variables, functions, and even whole classes. As we will see, it is possible to have variables, functions, and classes with different levels of access depending upon where in the code the access is being attempted from. This allows the designers of a class to practice good encapsulation and make just the functionality and data they choose available to users of the class. As a slightly contrived but useful example, the designers of a class used to talk to a satellite and get GPS data wouldn't allow access to the dropOutOfTheSky function.
These are the four access modifiers in Kotlin.
Public
Declaring classes, functions, and properties as public means that they ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.