Is it possible to select all files within a directory (and not the folders/subfolders)?

Question

For instance, in my iTunes directory, I would like to select all of the music files without selecting the other olders (artist name, album name). Going through with Shift+click and command+click will take an eternity. If I just highlight everything and hit "open", it will open ALL of the folders as well as opening the actual files. I want to skip the folders if possible with a mass selection.

Answer 1

Well, its gonna be an expensive comparison since there is no non-arbitrary way to iterate through the files, but try:
String f1, f2;  // the comparing files
//get a primary list of files to iterate through
Process p = Runtime.getRuntime.exec("ls");  // if in Linux
BufferedReader pri =
    new BufferedReader(
    new InputStreamReader(
    p.getInputStream()));
while((f1 = pri.readLine()) != null){    // for each file...
    Process q = Runtime.getRuntime.exec("ls");  // get all file names
    BufferedReader sec =
        new BufferedReader(
        new InputStreamReader(
        q.getInputStream()));
    while((f2 = sec.readLine()) != null){   // and for each of these
        if(!f1.equals(f2))  // as long as it's not the same file
            DO_COMPARISON(new File(f1), new File(f2));   // compare them
}