Java Utililty Methods HTTP Response Code

int connectionTimeoutInMS = 3000;
int socketOperationsTimeoutInMS = 3000;
HttpURLConnection conn = null;
URL testUrl = new URL(URL);
conn = (HttpURLConnection) testUrl.openConnection();
conn.setConnectTimeout(connectionTimeoutInMS);
conn.setReadTimeout(socketOperationsTimeoutInMS);
conn.setRequestMethod("HEAD");
...

URL url = new URL(urlS);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
return connection.getResponseCode();

try {
    URL u = new URL(urlString);
    HttpURLConnection huc = (HttpURLConnection) u.openConnection();
    huc.setRequestMethod("GET");
    huc.connect();
    return huc.getResponseCode();
} catch (MalformedURLException ex) {
    throw new RuntimeException(ex);
...

URL u = new URL(urlString);
HttpURLConnection huc = (HttpURLConnection) u.openConnection();
huc.setRequestMethod("GET");
huc.setRequestProperty("User-Agent",
        "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)");
huc.connect();
int responseCode = huc.getResponseCode();
huc.disconnect();
...

try {
    return getResponseCode(new URL(urlString));
} catch (MalformedURLException e) {
    return 0;

HttpURLConnection.setFollowRedirects(false);
HttpURLConnection huc = (HttpURLConnection) url.openConnection();
return huc.getResponseCode();

try {
    if (connection instanceof HttpURLConnection) {
        return ((HttpURLConnection) connection).getResponseCode();
    return -1;
} catch (IOException exception) {
    return handleIOException(connection);