import java.io.IOException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Scanner;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class ShowLinksApp {
	public static void main(String[] args) throws IOException {

		System.out.println("Type valid url e.g.\"http://economist.com\":");

		Scanner sc = new Scanner(System.in);
		String url = sc.nextLine();
		sc.close();

		System.out.printf("Processing %s...\n", url);

		Map<String,Integer> linkMap = new HashMap<String,Integer>();
		Document doc = Jsoup.connect(url).get();
		Elements links = doc.select("a");

		System.out.printf("\nLinks: (%d)\n", links.size());

		for (Element link : links) {

			String absURL = link.attr("abs:href");
			URL u = new URL(absURL);
			String hostURL = u.getHost();


			if (linkMap.containsKey(hostURL)) {
				linkMap.put(hostURL, linkMap.get(hostURL) + 1);
            } else {
                linkMap.put(hostURL, 1);
            }

		}
		for (Entry<String, Integer> e : linkMap.entrySet()) {
            System.out.println(e.getKey() + " - " + e.getValue());
        }
	}
}