Java Utililty Methods File to URL

String path = file.getAbsolutePath();
path = URLEncoder.encode(path, "UTF8");
if (!path.startsWith("/")) {
    path = "/" + path;
if (!path.endsWith("/") && file.isDirectory()) {
    path = path + "/";
URL url = new URL("file", "", path);
return url;

URL[] urls = new URL[files.length];
int i = 0;
for (File file : files) {
    urls[i] = file.toURI().toURL();
    i++;
return urls;

File f = new File(file);
return f.toURI().toURL();

File f = new File(filename);
try {
    return f.toURI().toURL().toString();
} catch (MalformedURLException e) {
    return filename;

try {
    return new File(filename).toURI().toURL();
} catch (MalformedURLException e) {
    e.printStackTrace();
    return null;

return file.toURI().toURL().toString();