June 2005
Beginner to intermediate
336 pages
6h 29m
English
Content preview from Java™ After Hours: 10 Projects You'll Never Do at WorkBecome 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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Drawing Some Graphics
The central method in Painter is the paint method. This is where all the drawing operations take place—drawing lines, ellipses, rectangles, text, with a wide variety of effects. To make those effects happen, Painter uses Java 2D—that is, Graphics2D objects, not the Graphics objects used in the previous chapters.
To let the user expand and reduce figures interactively while dragging the mouse, Painter uses two different Graphics2D objects—one corresponding to the internal image where the final figure is stored when the user is done drawing, and one corresponding to the window while the user is dragging the mouse. To make the drawing operations easier, the current graphics context is stored in a variable named gImage, and ...
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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.