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    <p>It seems like there are two questions here:</p> <ol> <li><p>How do I get NetBeans to include an image file in the jar produced when I build my project?</p></li> <li><p>How do I access an image file from a jar?</p></li> </ol> <p>This answer applies to NetBeans 6.8 and addresses both of the subquestions.</p> <p>Assume that you have an ant based Java Application Project.</p> <p>Here is the 'Files' view of the project</p> <pre><code>JP + images + test.jpg + nbproject + src + jp + Main.java + test + build.xml + manifest.mf </code></pre> <p>Inside your Main.java you have code like this:</p> <pre><code>public static void main(String[] args) throws IOException { // find the file in the file system.. probably not a good idea File f = new File("images/test.jpg"); System.out.println(f.getCanonicalPath()+" "+f.exists()); </code></pre> <p>When you run this project from inside NB you get this output:</p> <pre><code>/export/home/vkraemer/NetBeansProjects/JavaApplication2/images/test.jpg true </code></pre> <p>When you run the code packed into the jar, you get something like this:</p> <pre><code>bash-3.2$ pwd /export/home/vkraemer/nbhg/web-main bash-3.2$ java -jar /export/home/vkraemer/NetBeansProjects/JavaApplication2/dist/JavaApplication2.jar /export/home/vkraemer/nbhg/web-main/images/test.txt false </code></pre> <p>To get something better when the jar is executed, you need to do the following:</p> <p><strong>Add the images directory as a source root for you project</strong>.</p> <p>Right click on the project and select the Properties item. A dialog will appear.</p> <p>Select 'Sources' in the list that is on the left side of the dialog. This will change the content of the panel on the right side of the dialog.</p> <p>Press the 'Add Folder...' button that appears next to the 'Source Package Folders' table. A FileChooser will appear.</p> <p>Use this chooser to select the images folder and press the OK button. An entry for the images folder will be added table.</p> <p>Use the OK button on the Project Properties dialog to accept the changes and dismiss the dialog.</p> <p><strong>Change your code to use <a href="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html#getResource%28java.lang.String%29" rel="noreferrer">Class.getResource()</a></strong>.</p> <pre><code>public static void main(String[] args) throws IOException { // find the file in the file system.. probably not a good idea File f = new File("images/test.jpg"); System.out.println(f.getCanonicalPath()+" "+f.exists()); URL url = Main.class.getResource("/test.jpg"); System.out.println(url); </code></pre> <p>When you run the project from inside the IDE, you should see something like this:</p> <pre><code>/export/home/vkraemer/NetBeansProjects/JavaApplication2/images/test.jpg true file:/export/home/vkraemer/NetBeansProjects/JavaApplication2/images/test.jpg </code></pre> <p>When you run the code packed into the jar, you will get something like this:</p> <pre><code>bash-3.2$ pwd /export/home/vkraemer/nbhg/web-main bash-3.2$ java -jar /export/home/vkraemer/NetBeansProjects/JavaApplication2/dist/JavaApplication2.jar /export/home/vkraemer/nbhg/web-main/images/test.jpg false jar:file:/export/home/vkraemer/NetBeansProjects/JavaApplication2/dist/JavaApplication2.jar!/test.jpg </code></pre> <p>After you get the URL for the test.jpg file, you can use <a href="http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/ImageIcon.html#ImageIcon%28java.net.URL%29" rel="noreferrer">ImageIcon(URL)</a> to create the icon</p>
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    1. COThanks a lot. I was having a similar problem with referencing image resources from .exe java application wrapper. With your solution, however, everything works perfectly.
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