February 2010
Beginner
255 pages
6h 10m
English
Content preview from 97 Things Every Programmer Should Know
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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.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.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.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.
Chapter 32. Encapsulate Behavior, Not Just State
IN SYSTEMS THEORY, containment is one of the most useful constructs when dealing with large and complex system structures. In the software industry, the value of containment or encapsulation is well understood. Containment is supported by programming language constructs such as subroutines and functions, modules and packages, classes, and so on.
Modules and packages address the larger-scale needs for encapsulation, while classes,
subroutines, and functions address the more fine-grained aspects of the matter. Over the
years, I have discovered that classes seem to be one of the hardest encapsulation
constructs for developers to get right. It’s not uncommon to find a class with a single
3,000-line main method, or a class with only set and
get methods for its primitive attributes. These examples demonstrate that the developers
involved have not fully understood object-oriented thinking, having failed to take
advantage of the power of objects as modeling constructs. For developers familiar with
the terms POJO (Plain Old Java Object) and POCO (Plain Old C# Object or Plain Old CLR Object), this
was the intent in going back to the basics of OO as a modeling paradigm—the objects are
plain and simple, but not dumb.
An object encapsulates both state and behavior, where the behavior is defined by the actual state. Consider a door object. ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.