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Scala in Depth

Cover of Scala in Depth by Foreword by: Martin Odersky... Published by Manning Publications
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Chapter 4. Utilizing object orientation


In this chapter
  • Object initialization
  • Abstract methods
  • Composition and Inheritance
  • Abstract interfaces
  • Type inference and public APIs


Scala is a rich object-oriented language. In Scala, every value is an object. Even operators are method calls against the class of an object. Scala offers mixin inheritance through the use of traits. Objects are core to everything in Scala, and understanding the details of how they work is important for using Scala.

Object, class, and traits are used to define public APIs for libraries. The initialization, comparison, and composition of objects are the bread and butter of Scala development. Initialization is important because of mixin inheritance and the way objects ...

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