Re: How to make my FileSaver being able to output any type stuff?

From:
Shawn <shaw@nospam.com>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 05 Oct 2006 13:48:42 -0400
Message-ID:
<eg3gho$nof$1@news.nems.noaa.gov>
One more question: In the following program, I feel I am stuck with the
line:
              printwriter = new PrintWriter(new
FileOutputStream(_fileChooser.getSelectedFile()));

Because the stuff I am saving maynot be text files. If it is other
things, then FileOutputStream should be replaced.

I cannot figure out more generic ways.

Thank you for your help.

<code>
public class FileSavingHelper {
    private JFileChooser _fileChooser = null;

    public FileSavingHelper()
    {
        _fileChooser = new JFileChooser(new File("."));
        _fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
    }

    public PrintWriter getPrintWriter()
    {
         PrintWriter printwriter = null;

         if (_fileChooser.showSaveDialog(null) ==
JFileChooser.APPROVE_OPTION) //user clicks Save button
         {
          //open the printwriter
             try
             {
              printwriter = new PrintWriter(new
FileOutputStream(_fileChooser.getSelectedFile()));
             }
         catch(FileNotFoundException e)
         {
         System.out.println("Error opening the file " +
_fileChooser.getSelectedFile().getAbsolutePath());
         }
    }
         else //user clicked Cancel button
         {
             System.out.println("Save command cancelled by user.");
         }

         return printwriter;
    } //end of getPrintWriter
}
</code>

To use it:
        PrintWriter pw = new FileSavingHelper().getPrintWriter();
        pw.println("Hello");
        pw.println("");
        pw.println("This is Thursday");

        pw.close();

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