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Kotlin Programming: The Big Nerd Ranch Guide, First Edition
book

Kotlin Programming: The Big Nerd Ranch Guide, First Edition

by Josh Skeen, David Greenhalgh
July 2018
Intermediate to advanced content levelIntermediate to advanced
400 pages
12h 14m
English
Big Nerd Ranch Guides
Content preview from Kotlin Programming: The Big Nerd Ranch Guide, First Edition

Constructors

Player now contains behavior and data you defined. For example, you specified an isImmortal property:

    val isImmortal = false

You used a val because once the player is created, their immortality should never be reassigned. But this property declaration means that, at the moment, no player can be immortal: There is currently no way to initialize isImmortal to any value other than false.

This is where a primary constructor comes into play. A constructor allows its caller to specify the initial values that an instance of a class will require in order to be constructed. Those values are then available for assignment to the properties defined within the class.

Primary constructors

Like a function, a constructor ...

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Publisher Resources

ISBN: 9780135165188