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<TITLE>Saving a Generated Graphic to a PNG or JPEG File
(Java Developers Almanac Example)
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<META CONTENT="Patrick Chan" NAME="AUTHOR">
<META CONTENT="Code Examples from The Java Developers Almanac 1.4" NAME="DESCRIPTION">
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<TD rowspan="3"><A HREF="/?l=ex"><IMG BORDER="0" ALIGN="BOTTOM" HSPACE="10" SRC="/egs/almanac14a.jpg"></A></TD><TD VALIGN="top"><font face="Times" size="6"><b>The Java Developers Almanac 1.4</b></font>
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<B><A HREF="../javax.imageio/pkg.html">javax.imageio</A></B><font color="#666666" SIZE="-2">
[6 examples]
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<h3>
e699.
Saving a Generated Graphic to a PNG or JPEG File</h3>
This example demonstrates how to create a generated image
and save it as a PNG or JPEG file.
<pre>
// Create an image to save
RenderedImage rendImage = myCreateImage();
// Write generated image to a file
try {
// Save as PNG
File file = new File(<font color="#0066ff"><i>"newimage.png"</i></font>);
ImageIO.write(rendImage, "png", file);
// Save as JPEG
file = new File(<font color="#0066ff"><i>"newimage.jpg"</i></font>);
ImageIO.write(rendImage, "jpg", file);
} catch (IOException e) {
}
// Returns a generated image.
public RenderedImage myCreateImage() {
int width = <font color="#0066ff"><i>100</i></font>;
int height = <font color="#0066ff"><i>100</i></font>;
// Create a buffered image in which to draw
BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// Create a graphics contents on the buffered image
Graphics2D g2d = bufferedImage.createGraphics();
// Draw graphics
<font color="#0066ff"><i>g2d.setColor(Color.white);</i></font>
<font color="#0066ff"><i>g2d.fillRect(0, 0, width, height);</i></font>
<font color="#0066ff"><i>g2d.setColor(Color.black);</i></font>
<font color="#0066ff"><i>g2d.fillOval(0, 0, width, height);</i></font>
// Graphics context no longer needed so dispose it
g2d.dispose();
return bufferedImage;
}
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Related Examples
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e698. <a class="eglink" href="BasicImageRead.html?l=rel">
Reading an Image from a File, InputStream, or URL
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<br>
e700. <a class="eglink" href="GetFormats.html?l=rel">
Listing the Image Formats That Can Be Read and Written
</a>
<br>
e701. <a class="eglink" href="DetermineFormat.html?l=rel">
Determining If an Image Format Can Be Read or Written
</a>
<br>
e702. <a class="eglink" href="DiscType.html?l=rel">
Determining the Format of an Image in a File
</a>
<br>
e703. <a class="eglink" href="JpegWrite.html?l=rel">
Compressing a JPEG File
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