Re: How do I write an ImageIcon object into a file on my computer?

From:
"phillip.s.powell@gmail.com" <phillip.s.powell@gmail.com>
Newsgroups:
comp.lang.java.help,comp.lang.java.programmer
Date:
16 Jan 2007 19:52:12 -0800
Message-ID:
<1169005931.964216.127000@m58g2000cwm.googlegroups.com>
Thomas Fritsch wrote:

<phillip.s.powell@gmail.com> wrote:

I hope this makes it more clear:

*update* still fails, can't fix it this time..

Here are my methods

public static void toFile(File file, Object contents) throws
IOException {
       FileOutputStream out = new FileOutputStream(file);

I assume you got the Exception in the line above.
(Unfortunately you missed to post the complete exception stack trace)

       out.write(contents.toString().getBytes());
   }

   public static void toFile(String filePath, Object contents) throws
IOException {
       File file = new File(filePath);
       toFile(file, contents);
   }
}

I get this exception thrown:

file:\C:\Documents%20and%20Settings\me\stave.ico (The filename,
directory name, or volume label syntax is incorrect)

The exception says it all: You try to open a file in directory
     file:\C:\Documents%20and%20Settings\me
which, of course, doesn't exist.
What you really want to do, is to open a file in directory
    C:\Documents and Settings\me
I.e. you have to use
    C:\Documents and Settings\me\stave.ico
as filePath in your code above.


Then perhaps this might be a better choice:

/*
 * FileDownloader.java
 *
 * Created on January 10, 2007, 3:47 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package FileTools;

import java.io.*;
import java.net.*;

/**
 *
 * @author ppowell-c
 */
public class FileDownloader implements Serializable {

    /** Creates a new instance of FileDownloader */
    public FileDownloader() {}

    public static void download(URL url, File file) throws IOException
{
        InputStream in = url.openStream();
        FileOutputStream out = new FileOutputStream(file);
        byte[] b = new byte[1024];
        int len;
        while((len = in.read(b)) != -1) {
            out.write(b, 0, len);
        }
        out.close();
    }

    public static void download(String path, File file) throws
IOException {
    download(new URL(path), file);
    }

    public static void download(String path, Object contents) throws
IOException {
    ObjectOutputStream out = new ObjectOutputStream(new
FileOutputStream(path));
    out.writeObject(contents);
    out.close();
    }

}

What do you think?

Phil

I have no idea what to do. All I want to do is create an icon at
C:/Documents and Settings/me called "stave.ico" with the contents
spawned within ImageIcon icon.


Don't confuse URL strings like
    file:\C:\Documents%20and%20Settings\me\stave.ico
with real Windows file paths like
    C:\Documents and Settings\me\stave.ico

--
Thomas

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