src/main/java/com/github/ricksbrown/cowsay/Cowloader.java
private static File[] getCowFiles(final String folder) {
		File dir = new File(folder);
		File[] files;
		files = dir.listFiles(new FilenameFilter() {
			@Override
			public boolean accept(final File dir, final String name) {
				return name.endsWith(".cow");
			}
		});
		return files;
	}
private static File[] getCowFiles(final String folder) {
		File dir = new File(folder);
		File[] files;
		files = dir.listFiles(new FilenameFilter() {
			@Override
			public boolean accept(final File dir, final String name) {
				return name.endsWith(".cow");
			}
		});
		return files;
	}
Gets all cowfiles found in the given directory.
@param folder The absolute path to the filesystem folder.
@return A list of all cowfiles found in this directory.