JSoup simple routine to extract all HREF links as absolute URLs

ExtractLinks.java

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.io.IOException;

public class ExtractLinks 
{
        public static void main(String[] args) throws IOException 
        {
        	if (args.length > 0) {
        		String url = args[0];
           		Document doc = Jsoup.connect(url).get();
           		Elements links = doc.select("a[href]");
           		for (Element link : links) System.out.println(link.attr("abs:href"));
        	} else {
        		System.out.println("full URL required");
        	}
           
        }
}