Get the second level domain of an URL (java)

Question

I am wondering if there is a parser or library in java for extracting the second level domain (SLD) in an URL - or failing that an algo or regex for doing the same. For exam

Answer 1

public static String getTopLevelDomain(String uri) {

InternetDomainName fullDomainName = InternetDomainName.from(uri);
InternetDomainName publicDomainName = fullDomainName.topPrivateDomain();
String topDomain = "";

Iterator it = publicDomainName.parts().iterator();
while(it.hasNext()){
    String part = it.next();
    if(!topDomain.isEmpty())topDomain += ".";
    topDomain += part;
}
return topDomain;
}

Just give the domain, and u will get the top level domain. download jar file from http://code.google.com/p/guava-libraries/