May 2022
Intermediate to advanced
356 pages
6h 45m
English
Content preview from Crystal Programming
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Chapter 3: Object-Oriented Programming
Like many others, Crystal is an object-oriented language. As such, it has objects, classes, inheritance, polymorphism, and so on. This chapter will introduce you to the features of Crystal for creating classes and handling objects while guiding you through those concepts. Crystal is largely inspired by Ruby, which itself borrows a lot from the Small Talk language, which is famous for its powerful object model.
In this chapter, we will cover the following main topics:
- The concept of objects and classes
- Creating your own classes
- Working with modules
- Values and references – using structs
- Generic classes
- Exceptions
Technical requirements
To complete the tasks in this chapter, you will need the following: ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.