Rename a file PROPERLY on disk

Question

Im trying to rename a file.. I know you're just going to tell me to use 'renameTo' but that doesnt actually change the files name on disk, it just changes to name of a 'File' object.
How do I actually change the name of a physical file on disk that can be seen in a file browser or windows explorer? PERL can do this in one line :P

Answer 1

well im using Ubuntu Linux and im sure I have permission to alter the files.. Id appreciate it If somebody could show me how to rename files by either linking me to a site or posting some code.. I found this example:
    // File (or directory) with old name
    File file = new File("oldname");
    // File (or directory) with new name
    File file2 = new File("newname");
    // Rename file (or directory)
    boolean success = file.renameTo(file2);
    if (!success) {
        // File was not successfully renamed
    }can somebody explain it to me? does this actually alter files on disk, or just objects you have created?
if I did the following, would it actually rename the file i have on the disk, or just the variable 'file'?
    // File (or directory) with old name
    File file = new File("C\:\\music\\oldsongname\.mp3");
    // File (or directory) with new name
    File file2 = new File("C\:\\music\\newsongname\.mp3");
    // Rename file (or directory)
    boolean success = file.renameTo(file2);
    if (!success) {
        // File was not successfully renamed
    }sorry if my backslashes are in the wrong places, but you can see what i mean