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Android Programming with Kotlin for Beginners
book

Android Programming with Kotlin for Beginners

by John Horton
April 2019
Beginner to intermediate content levelBeginner to intermediate
698 pages
15h 15m
English
Packt Publishing
Content preview from Android Programming with Kotlin for Beginners

Handling large amounts of data with arrays

You might be wondering what happens when we have an app with lots of variables to keep track of. What about our Note to self app with 100 notes, or a high-score table in a game with the top 100 scores? We can declare and initialize 100 separate variables as follows:

var note1 = Note()
var note2 = Note()
var note3 = Note()
// 96 more lines like the above
var note100 = Note()

Or, by using the high scores example we might use something like the following code:

var topScore1: Int
var topScore2: Int
// 96 more lines like the above
var topScore100: Int

Immediately, this code can seem unwieldy, but what about when someone gets a new top score, or if we want to let our users sort the order that their notes are displayed ...

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Publisher Resources

ISBN: 9781789615401Supplemental Content