Validate a filename from a JFileChooser : File Chooser « Swing JFC « Java

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Java » Swing JFC » File Chooser Screenshots  Validate a filename from a JFileChooser     import javax.swing.JFileChooser; import javax.swing.JOptionPane; public class Main {   public static void main(String s[]) {     JFileChooser chooser = new JFileChooser();     int rc = chooser.showOpenDialog(null);     while (rc == JFileChooser.APPROVE_OPTION         && !chooser.getSelectedFile().getName().endsWith(".java")) {       JOptionPane.showMessageDialog(null, "The file "           + chooser.getSelectedFile() + " is not java source file.",           "Open Error", JOptionPane.ERROR_MESSAGE);       rc = chooser.showOpenDialog(null);     }   } }                  Related examples in the same category 1.  JFileChooser is a standard dialog for selecting a file from the file system. 2.  A demo which makes extensive use of the file chooser 3.  Demonstration of File dialog boxes 4.  JFileChooser class in action with an accessory 5.  A simple file chooser to see what it takes to make one of these work 6.  see what it takes to make one of these filters work 7.  show thumbnails of graphic files 8.  FileChooser file filter customized filechooser 9.  Choose a File 10.  Customizing a JFileChooser 11.  A simple FileFilter class that works by filename extension 12.  Swing File Chooser Demo 13.  FileChooser Demo 14.  File Chooser Demo 2 15.  File Chooser Demo 4 16.  Getting the File-Type Icon of a File 17.  Getting the Large File-Type Icon of a File 18.  Listening for Approve and Cancel Events in a JFileChooser Dialog 19.  String javax.swing.JFileChooser.APPROVE_SELECTION 20.  void javax.swing.JFileChooser.addActionListener(ActionListener l) 21.  JDialog javax.swing.JFileChooser.createDialog(Component parent) 22.  void javax.swing.JFileChooser.setDialogType(int dialogType) 23.  Changing the Text of the Approve Button in a JFileChooser Dialog 24.  Determining If a File Is Hidden 25.  Showing Hidden Files in a JFileChooser Dialog 26.  Enabling Multiple Selections in a JFileChooser Dialog 27.  Listening for Changes to the Selected File in a JFileChooser Dialog 28.  Getting the File-Type Name of a File 29.  Getting and Setting the Selected File of a JFileChooser Dialog 30.  Getting and Setting the Current Directory of a JFileChooser Dialog 31.  Determining If the Approve or Cancel Button Was Clicked in a JFileChooser Dialog 32.  Adding a Filter to a File Chooser Dialog 33.  Displaying Only Directories in a File Chooser Dialog 34.  Creating a JFileChooser Dialog 35.  Localize a JFileChooser 36.  Select a directory with a JFileChooser 37.  Disable the JFileChooser's "New folder" button 38.  extends FileView to create custom File chooser 39.  Suffix FileFilter 40.  Extension File Filter 41.  Files filter that filters files by their suffix (or extension) 42.  Generic File Filter 43.  Get Directory Choice 44.  Get File Choice