mongodb.question2.java Source code

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Here is the source code for mongodb.question2.java

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package mongodb;

import com.mongodb.AggregationOutput;
import java.net.UnknownHostException;
import java.util.Scanner;

import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.Mongo;
import com.mongodb.MongoClient;
import com.mongodb.MongoException;

/**
 *
 * @author cheryldsouza
 */
public class question2 {
    public static void main(String[] args) throws UnknownHostException, MongoException {

        Mongo mongoclient = new Mongo();

        DB db = mongoclient.getDB("db");

        DBCollection Collection = db.getCollection("tags_import");

        //Need to enter the userid
        System.out.println("Enter the User Id here");
        Scanner userid = new Scanner(System.in);
        String UserId = userid.next();

        BasicDBObject user = new BasicDBObject();
        user.put("UserID", UserId);

        DBCursor usercursor = Collection.find();
        usercursor = Collection.find(user);

        while (usercursor.hasNext()) {
            DBObject object = usercursor.next();
            String MovieID = (String) object.get("MovieID");

            System.out.println("MovieID is " + MovieID);

            //for each Movie Id find the target id
            BasicDBObject targetid = new BasicDBObject();
            targetid.put("MovieID", MovieID);

            DBCursor moviecursor = Collection.find();
            moviecursor = Collection.find(targetid);

            int count = moviecursor.count();
            System.out.println("This movie has been rated " + count + " users");
            System.out.println(count);

            while (moviecursor.hasNext()) {
                DBObject object2 = moviecursor.next();
                String folluserID = (String) object2.get("UserID");
                System.out.println("The following  Users are familiar to the given user  " + folluserID);
            }
            System.out.println();
        }

    }

}