Keyword Suggestion tool in java. Java code to make your own simple keyword suggestion tool. Make your own keyword suggestion tool in java.

KeywordSuggestion.java

import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Random;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class KeywordSuggestion {
	static ArrayList<String> suggestionsList = new ArrayList<String>();
	
	public static void main(String args[]) {
		int number = 3; // Number of depths to go and find keywords
		findSuggestions("facebook covers", number);
		try {
			Thread.sleep(5000);
			while(true) {
				Thread.sleep(1000);
				//wait until fetching is complete (thread count will be 1 when all threads complete their tasks)
				if(Thread.activeCount() == 1) {
					//Stop waiting when fetching is completed
					break;
				}
			}
			
			for(int i = 0; i < suggestionsList.size(); i++) {
				System.out.println((i+1) + "=>\t"+suggestionsList.get(i));
			}
			
			System.out.println();
			System.out.println("Total Number of keywords fetched: " + suggestionsList.size());
		}catch(Exception e) {}
	}
	
	public static void findSuggestions(String focuskeyword, int depth){
		Runnable run = new Runnable() {
			@Override
			public void run() {
				if(depth <= -1){
					return;
				}
				String keyword = focuskeyword.trim().replaceAll(" ", "+");
				try {
					Random rand = new SecureRandom();
					int requestTime = rand.nextInt(10000) + 15000;
					String request = "http://www.bing.com/search?q="+ keyword +"&go=Submit&qs=n&form=QBLH&pq="+ keyword +"&sc=8-5&sp=-1&sk=&cvid=8ACF40D43BE54892993ADC0D1147221B";	
					Document doc1 = Jsoup.connect(request).userAgent("chrome").timeout(requestTime).get();
					String data = doc1.toString();
					String tempData = data.substring(data.indexOf("Related searches"));
					tempData = tempData.substring(0, tempData.indexOf("</ul>"));
					Document doc2 = Jsoup.parse(tempData);
					Elements links = doc2.select("li");
					ArrayList<String> keywordList = new ArrayList<String>();
					for (Element link : links) {
						String tempkeyword = link.text();
						keywordList.add(tempkeyword);
					}
					for(int i = 0; i < keywordList.size(); i++) {
						String tempKeyword = keywordList.get(i);
						if(!suggestionsList.contains(tempKeyword)) {
							suggestionsList.add(tempKeyword);
							findSuggestions(tempKeyword, depth - 1);
						}
					}
				} catch (Exception e) {}
			}
		};
		new Thread(run).start();
	}
}