September 2005
Beginner
576 pages
13h 6m
English
Content preview from SAMS Teach Yourself Programming with Java™ in 24 Hours, FOURTH EDITIONBecome 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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Objects in Action
Consider the case of a program that displays a pie chart. A PieChart object could consist of the following:
Behavior to calculate how big each pie slice should be in the chart
Behavior to draw the chart
An attribute to store the title of the chart
When you compare a pie chart in the real world to a PieChart object in a computer program, it might seem odd to ask the PieChart object to draw itself. Graphs don't draw themselves in the real world. However, objects in object-oriented programming work for themselves whenever possible. This quality makes them more useful because you can incorporate them in other programs without having as many things to teach them. If a PieChart object did not know how to draw itself, for instance, every ...
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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.
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.