Question

I need to parse the two tables in HTML using jsoup library from the site http://www.informatik.uni-trier.de/~ley/pers/hd/k/Kumar:G=_Praveen.html
..
Since there are two tables on the page ,I do not know how excatly to parse the table contents.I need to extract the contents of the 1st table, that is only author names and their publications and the 2nd table which is at the end named coauthors…
I tried to code (code given below)but it gives errors…

public class Main {
    public static void main(String[] args) {
        try {
            Document doc =Jsoup.connect(“http://www.informatik.unitrier.de/~ley/pers/hd/k/Kumar:G=_Praveen.html“).get();
            Elements trs = doc.select(“table tr”);
            Element table = doc.select(“table[class=coauthor]“).first();
            Iterator ite = table.select(“td”).iterator();
            ite.next();
            System.out.println(“Value 1: ” + ite.next().text());
            System.out.println(“Value 2: ” + ite.next().text());
            System.out.println(“Value 3: ” + ite.next().text());
            System.out.println(“Value 4: ” + ite.next().text());
            trs.remove(0);
            for (Element tr : trs) {
                Elements tds = tr.getElementsByTag(“td”);
                Element td = tds.first();
                System.out.println(“Blog: ” + td.text());
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Please suggest me what exactly changes I need to do in the above code ,so that i get the exact information from the table that I require..Any help will be appreciated..thanx in advance..

Answer 1

Author and der publications:

final String url = "http://www.informatik.uni-trier.de/~ley/pers/hd/k/Kumar:G=_Praveen.html";
Document doc = Jsoup.connect(url).get();


for( Element element : doc.select("table div.data") )
{
    // System.out.println(element); // Use this line if you need the HTML Element instead of the text
    System.out.println(element.text());
}

Output:

G. Praveen Kumar, Anirban Sarkar: Weighted Association Rule Mining and Clustering in Non-binary Search Space. ITNG 2010: 238-243
G. Praveen Kumar, Arjun Kumar Murmu, Biswas Parajuli, Prasenjit Choudhury: MULET: A Multilanguage Encryption Technique. ITNG 2010: 779-782
G. Praveen Kumar, Anirban Sarkar, Narayan C. Debnath: A New Algorithm for Frequent Itemset Generation in Non-Binary Search Space. ITNG 2009: 149-153

Coauthors:

for( Element element : doc.select("table td.coauthor") )
{
    System.out.println(element.text());
}

Output:

Prasenjit Choudhury
Narayan C. Debnath
Arjun Kumar Murmu
Biswas Parajuli
Anirban Sarkar