Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package datasite; //import java.io.*; import java.io.FileNotFoundException; import java.io.FileOutputStream; //import java.io.FileNotFoundException; import java.io.PrintStream; //import java.io.PrintStream; import java.util.HashSet; import java.util.Iterator; import java.util.Scanner; import java.util.Set; import java.util.logging.Level; import java.util.logging.Logger; import twitter4j.FilterQuery; import twitter4j.StallWarning; import twitter4j.Status; import twitter4j.StatusDeletionNotice; import twitter4j.StatusListener; import twitter4j.TwitterStream; import twitter4j.TwitterStreamFactory; import twitter4j.User; import twitter4j.conf.ConfigurationBuilder; // TODO code application logic here /** * * @author maggie */ public class SortedUnique { public static void main(String[] args) { ConfigurationBuilder confb = new ConfigurationBuilder(); confb.setDebugEnabled(true); confb.setOAuthConsumerKey("Consumer Key"); confb.setOAuthConsumerSecret("Consumer Secret"); confb.setOAuthAccessToken("Access Token"); confb.setOAuthAccessTokenSecret("Access Token Secret"); TwitterStream twitterStream = new TwitterStreamFactory(confb.build()).getInstance(); StatusListener listener; listener = new StatusListener() { @Override public void onException(Exception arg0) { // TODO Auto-generated method stub } @Override public void onDeletionNotice(StatusDeletionNotice arg0) { // TODO Auto-generated method stub } @Override public void onScrubGeo(long arg0, long arg1) { // TODO Auto-generated method stub } @Override public void onStatus(Status status) { PrintStream out = null; try { User user = status.getUser(); // gets Username String username = status.getUser().getScreenName(); String content = status.getText(); Set<String> userWrds = new HashSet<String>(); // HashSet implements Set Scanner sc = new Scanner(content + user); while (sc.hasNext()) { String word = sc.next(); userWrds.add(word); } out = new PrintStream(new FileOutputStream("tweet_output\\unique.txt", true)); Iterator<String> iter = userWrds.iterator(); for (int i = 1; i <= 1 && iter.hasNext(); i++) //System.out.println(iter.next()); out.println(userWrds.size()); } catch (FileNotFoundException ex) { Logger.getLogger(SortedUnique.class.getName()).log(Level.SEVERE, null, ex); } finally { out.close(); } } @Override public void onTrackLimitationNotice(int arg0) { // TODO Auto-generated method stub } @Override public void onStallWarning(StallWarning sw) { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } }; FilterQuery fq = new FilterQuery(); String keywords[] = { "africa" }; fq.track(keywords); twitterStream.addListener(listener); twitterStream.filter(fq); //twitterStream.(); } }