Saving a file using a dialog box

**Deprogrammer** · December 5th, 2010, 04:04 PM

Why doesn't this very simple code work when it seems to me that it should?

import java.io.*;
import javax.swing.*;
 
public class FileInput
{
    public static void main(String[] args)
    {
    	String fileName =
			JOptionPane.showInputDialog("Open file: ");
    	PrintWriter inputStream = null;
 
       try
       {
           inputStream = new PrintWriter(new File(fileName));
       }
       catch(FileNotFoundException e)
       {
           System.out.println("Error opening the file " + 
                               fileName);
           System.exit(0);
       }
	   inputStream.close();
    }
}

All I expect it to do is to display the contents of a text file in the console of Eclipse...

Thanks

**helloworld922** · December 5th, 2010, 05:21 PM

What do you mean by "doesn't work"?

From the PrintWriter API, there's no constructor which will create a PrintWriter from just a file, you must have an OutputStream.

inputStream = new PrintWriter(new FileOutputStream(new File(fileName)));

Also, you're not printing anything out to the PrintWriter, so the file will be empty.

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