Tweet visualisation in Processing

import twitter4j.conf.*; //http://twitter4j.org/javadoc/index.html
import twitter4j.*;
import twitter4j.auth.*;
import twitter4j.api.*;
import java.util.*;

Twitter twitter;
String searchString = "geug14"; //Change this to what you want to search for.
List<Status> tweets;
int currentTweet;
float previous_w = 300;
float previous_h=300;
PFont myFont;

void setup(){
  smooth();
  size(1800,600);
  float brushSize = 0;
  float targetBrushSize = 0;
  myFont = createFont("GillSans-48.vlw", 24);
  textFont(myFont);

  // Go to developer.twitter.com and get your application keys
  ConfigurationBuilder cb = new ConfigurationBuilder();
  cb.setOAuthConsumerKey("YOURS_GOES_HERE);
  cb.setOAuthConsumerSecret("YOURS_GOES_HERE");
  cb.setOAuthAccessToken("YOURS_GOES_HERE");
  cb.setOAuthAccessTokenSecret("YOURS_GOES_HERE");

    TwitterFactory tf = new TwitterFactory(cb.build());
    twitter = tf.getInstance();
    getNewTweets();
    currentTweet = 0;
    thread("refreshTweets");
}

void draw(){
    //Draw the line
    //background(#FA6508);
    smooth();
    fill(33 );
   stroke( #12FA08 );
    strokeWeight(20);

    float w = random(width);
    float h = random(height);

    line(previous_w,previous_h, w, h);
    delay(5000);

    fill(0, 40);
    rect(0, 0, width, height);

    currentTweet = currentTweet + 1;

    if (currentTweet >= tweets.size()){
        currentTweet = 0;
    }

    Status status = tweets.get(currentTweet);
    User user = status.getUser();
    PImage img =  loadImage(user.getBiggerProfileImageURL());

    fill(200);
    image(img, w-80,h);
    text(status.getText(),w ,h , 500, 400);

    //translate(w,h);
    previous_w = w;
    previous_h = h;
}

void getNewTweets(){
    try {
        Query query = new Query(searchString);
        QueryResult result = twitter.search(query);
        tweets = result.getTweets();
    } catch (TwitterException te) {
        System.out.println("Failed to search tweets: " + te.getMessage());
        System.exit(-1);
    }
}

void refreshTweets(){
    while (true){
        getNewTweets();
        println("Updated Tweets");
        delay(30000);
    }
}