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Thread: Saving a file using a dialog box

  1. #1
    Junior Member
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    Default Saving a file using a dialog box

    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


  2. #2
    Super Moderator helloworld922's Avatar
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    Default Re: Saving a file using a dialog box

    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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