import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.List;
import java.util.Vector;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class WordNetLiveRequest {

	private String requestURL =
		"http://wordnet.princeton.edu/perl/webwn";

	private boolean debugging = false;

	public WordNetLiveRequest() {
	}

	public Vector<String> findMatchingWords(String word, boolean blowup) {
		Vector<String> words = filterWebsite(getWebsite(word));
		if (blowup) {
			words = blowup(words);
		}
		return words;
	}

	private Vector<String> filterWebsite(String website) {
		website = website.replaceAll("\\<.*?\\>", "");
		Pattern pattern = Pattern.compile("S:\\s\\([vn]\\)([a-z\\s,]*)\\(.*");
		Matcher matcher = pattern.matcher(website);
		Vector<String> otherWords = new Vector<String>();
		while (matcher.find()) {
			if (debugging) {
				System.out.println(matcher.group(0));
				System.out.println(" -->" + matcher.group(1));
			}
			String[] matches = matcher.group(1).split(",");
			for (int i = 0; i < matches.length; i++) {
				String word = matches[i].trim();
				if (!otherWords.contains(word)) {
					otherWords.add(word);
				}
			}
		}
		return otherWords;
	}

	private String getWebsite(String searchTerm) {
		String completeText = "";
		try {
			String data = URLEncoder.encode("s", "UTF-8") + "="
					+ URLEncoder.encode(searchTerm, "UTF-8");
			// data += "&amp;amp;amp;amp;" + URLEncoder.encode("key2", "UTF-8") + "=" +
			// URLEncoder.encode("value2", "UTF-8");

			// Send data
			URL url = new URL(requestURL);
			URLConnection conn = url.openConnection();
			conn.setDoOutput(true);
			OutputStreamWriter wr = new OutputStreamWriter(conn
					.getOutputStream());
			wr.write(data);
			wr.flush();

			// Get the response
			BufferedReader rd = new BufferedReader(new InputStreamReader(conn
					.getInputStream()));
			String line;
			while ((line = rd.readLine()) != null) {
				completeText += line + "\n";
			}
			wr.close();
			rd.close();
		} catch (Exception e) {
			System.out.println("Error getting Website:");
			e.printStackTrace();
		}
		return completeText;
	}

	private Vector<String> blowup(Vector<String> wordlist) {
		Vector<String> newList = new Vector<String>();
		for (String word : wordlist) {
			if (!newList.contains(word))
				newList.add(word);
			Vector<String> tmpList = findMatchingWords(word, false);
			for (String word2 : tmpList) {
				if (!newList.contains(word2))
					newList.add(word2);
			}
		}
		return newList;
	}

	public static void main(String[] args) {
		String word = "food";
		WordNetLiveRequest wn = new WordNetLiveRequest();
		List<String> words = wn.findMatchingWords(word, true);
		System.out.println("Words related to '" + word + "': " + words);
	}

}

Ein Programmaufruf wie in der o.a. Main-Routine gibt mit dem Schlüsselwort “food” gibt folgende Ausgabe:

Words related to ‘food’: [food, nutrient, solid food, food for thought, intellectual nourishment]

Viel Spaß beim Lesen. Ich hoffe es ist nützlich:

Datei Ein- und Ausgabe mit Java