January 2015
Intermediate to advanced
212 pages
4h 22m
English
Content preview from Mastering Python Design PatternsBecome 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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Chapter 14. The State Pattern
Object-oriented programming focuses on mutating the state of objects that interact with each other. A very handy tool to model (and when necessary, mathematically formalize) state transitions in many problems is using a finite-state machine (commonly known as a state machine) First, what's a state machine? A state machine is an abstract machine that has two key components: states and transitions. A state is the current (active) status of a system. For example, if we have a radio receiver, two possible states are tuning on the FM or AM. Another possible state is switching from one FM/AM radio station to another. A transition is the switch from one state to another. A transition is initiated by a triggering event or ...
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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.