JFileChooser restriction

[sehudson]

In my Java program, I use a JFileChooser to bring in a file for processing. How can I restrict the JFileChooser to only accept a file of type .txt, or do a System.exit(1) otherwise. Or better yet, can I set it up so that the JFileChooser only displays .txt files in the window.

[susieferrari]

You can set a file filter such as:

private class TxtFileFilter extends FileFilter{
        public boolean accept(File file){
            if(file.isDirectory()) return true;
            String fname = file.getName();
            return fname.endsWith("txt");
        }
        public String getDescription(){
        return "txt file";
    }
    }

Susanna

[DarrylBurke]

There's already a class javax.swing.filechooser.FileNameExtensionFilter in the standard JDK. Why reinvent the wheel?

db