import java.io.File;
import java.util.*;

class SortedFiles {

	static String[] sortFilesIn(File directory){
		if (!directory.isDirectory() )
			return null;
		String[] files = directory.list();
		Arrays.sort( files, new FileNameOrder() );
		return files;
	}

	public static void main(String[] args){
		String name = "C:/files";
		String[] files = sortFilesIn( new File(name) );
		for(int i = 0; i<files.length; i++)
			System.out.println(files[i]);
	}
}