Setup JFileChooser to accept text files only.

Question

Hello all, I was trying to setup a JFileChooser to accept only text files, so here's the code:
JFileChooser my_filec = new JFileChooser();
        my_filec.addChoosableFileFilter(new FileFilter()
            public boolean accept(File f)
                return (f.getName().endsWith(".txt")|| !f.getName().contains("."));
            public String getDescription()
                return "Text File (*.txt)";
        });and the problem is if I write <return f.getName().endsWith(".txt")> only it can't open foders and when I write <return (f.getName().endsWith(".txt")|| !f.getName().contains("."));>
it can choose files that doesn't have an extension, is there a way to make it choose ONLY folders and text files?
Another question, can I setup JFileChooser to check the file itself if it was a text file written in ANSI for example REGARDLESS of its extension?

Answer 1

return (f.getName().toLowerCase().endsWith(".txt") || f.isDirectory());You can open the file and check whatever you wish.
The question is how are you going to decide if the file is a text file or not?
You should also try to keep accept function as short as possible or your file chooser will work very slowly.