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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Handling Menu Selections
The actionPerformed method handles menu selections, setting the appropriate drawing flags as needed. This method handles the File menu's Open item by using the ImageIO class to open an image file:
public void actionPerformed(ActionEvent e)
{
if(e.getSource() == openMenuItem){
try{
dialog.setMode(FileDialog.LOAD);
dialog.setVisible(true);
if(dialog.getFile() != ""){
File inputFile = new File(dialog.getDirectory() +
dialog.getFile());
bufferedImage = ImageIO.read(inputFile);
if(bufferedImage != null){
image = createImage(bufferedImage.getWidth(),
bufferedImage.getHeight());
Graphics2D g2d = (Graphics2D)
image.getGraphics();
g2d.drawImage(bufferedImage, null, 0, 0);
imageWidth = bufferedImage.getWidth();
imageHeight = bufferedImage.getHeight(); ...Become 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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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.