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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Workshop: Baking a Pie Graph
To draw this hour to a close, you will create PiePanel, a graphical user interface component that displays a pie graph. This component will be a subclass of JPanel, a simple Swing container that's useful as a place to draw something.
One way to begin creating a class is to define the way objects of the class will be created. Programs that use the PiePanel class must undertake the following steps:
- Create a PiePanel object by using the constructor method PiePanel(int). The integer specified as an argument is the number of slices the pie graph will contain.
- Call the object's addSlice(Color, float) method to give a slice the designated color and value.
The value of each slice in PiePanel is the quantity represented by ...
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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.