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    <p>You want to use them, and add a filter. For Example:</p> <pre><code> JFileChooser chooser = new JFileChooser(); // Note: source for ExampleFileFilter can be found in FileChooserDemo, // under the demo/jfc directory in the Java 2 SDK, Standard Edition. ExampleFileFilter filter = new ExampleFileFilter(); filter.addExtension("jpg"); filter.setDescription("JPG &amp; GIF Images"); chooser.setFileFilter(filter); int returnVal = chooser.showSaveDialog(parent); if(returnVal == JFileChooser.APPROVE_OPTION) { System.out.println("You chose to open this file: " + chooser.getSelectedFile().getName()); } </code></pre> <p>This will only show JPG and GIF files. Example stolen from <a href="http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/JFileChooser.html" rel="nofollow noreferrer">here</a></p> <p>Edit: Just so you know ExampleFileFilter implements the abstact class <a href="http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/filechooser/FileFilter.html" rel="nofollow noreferrer">FileFilter</a></p> <p>Edit: Since you know the name of the file, you could just have a button that says open and use <a href="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Runtime.html" rel="nofollow noreferrer">Runtime</a>.getRuntime.exec('the file to be opened.doc") and that should open it in the appropriate application. </p> <p>For saving you will still want to prompt them to find out where they want to save it so you would still need the JFileChooser. I would still use a filter, and determine what the file extension will be dynamically if necessary and then do:</p> <pre><code> JFileChooser chooser = new JFileChooser(); // Note: source for ExampleFileFilter can be found in FileChooserDemo, // under the demo/jfc directory in the Java 2 SDK, Standard Edition. String selectedFile = "The suggested save name."; chooser.setSelectedFile(selectedFile); ExampleFileFilter filter = new ExampleFileFilter(); String extension = "Do something to find your extension"; filter.addExtension(extension); filter.setDescription("JPG &amp; GIF Images"); chooser.setFileFilter(filter); int returnVal = chooser.showSaveDialog(parent); if(returnVal == JFileChooser.APPROVE_OPTION) { System.out.println("You chose to open this file: " + chooser.getSelectedFile().getName()); //then write your code to write to disk } </code></pre> <p>Hope that helps.</p>
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    1. POHow can I have a download file option in JAVA Swing?
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    1. USJacob Schoen
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    1. POHow can I have a download file option in JAVA Swing?
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    1. COHey, I dont want to put restrictions for openign a file but want to have a dialog box that would allow the user to either open or save a particular file, say a report that is generated by my system.Hope it is much clear now.
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    2. COAre you saying that you want to be able to prompt them to open a specific file that you already know the name of?
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    3. COyes u r absolutly rit..wat i want is if we have an atatchment on gmail, the way it prompts download and then shows either save or open.
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