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    I'm trying to create a sketch that will draw anything (in this example circle) when the user receives a tweet.
    I'm using twitter4j java library and it's working well for me. I managed to get updates and update my status.
    However when I'm trying to implement Processing functions it doesn't work giving me beautiful bunch of different errors.
    I think I'm doing something fundamentally wrong. I'm sorry If my question is lame.
    I really appreciate any help. Thank you.
    1. import processing.core.*;

      import processing.core.PGraphics;

      import twitter4j.DirectMessage;

      import twitter4j.Status;

      import twitter4j.StatusDeletionNotice;

      import twitter4j.Twitter;

      import twitter4j.TwitterException;

      import twitter4j.TwitterFactory;

      import twitter4j.TwitterStream;

      import twitter4j.TwitterStreamFactory;

      import twitter4j.User;

      import twitter4j.UserList;

      import twitter4j.UserStreamListener;

      import twitter4j.AsyncTwitter;

      import twitter4j.AsyncTwitterFactory;





      public class processingTwitter extends PApplet {

      public static void main(String args[]) {

       

      PApplet.main(new String[] {"processingTwitter" });   

             

      TwitterStream twitterStream = new TwitterStreamFactory().getInstance();

             

              twitterStream.addListener(listener);


              twitterStream.user();


          }

      public void setup(){

      size(800,600);

      background(255);

      }

          static UserStreamListener listener = new UserStreamListener() {


          public void onStatus(Status status) {

                  if(!status.getUser().getScreenName().equals("this_bottle")){

                  AsyncTwitter twitter = new AsyncTwitterFactory().getInstance(); 

                  twitter.updateStatus("thank you @" +                         status.getUser().getScreenName());

                 

                  }

                 

                 

              System.out.println("onStatus @" + status.getUser().getScreenName()                         + " - " + status.getText());

             

              }


              public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {

                  System.out.println("Got a fucking status deletion notice id:" +                        statusDeletionNotice.getStatusId());

      //==================================================================================            //I tried different ways of doing it...


                          PGraphics dr = new PGraphics();

                  dr.fill(100);

                  dr.ellipse(400,300,50,50);

                  processingTwitter tw = new processingTwitter();

                  tw.circleDraw();

      //==================================================================================                      

                 

              }


              public void onDeletionNotice(long directMessageId, long userId) {

                  System.out.println("Got a direct message deletion notice id:" + directMessageId);

              }


              public void onTrackLimitationNotice(int numberOfLimitedStatuses) {

                  System.out.println("Got a track limitation notice:" + numberOfLimitedStatuses);

              }


              public void onScrubGeo(long userId, long upToStatusId) {

                  System.out.println("Got scrub_geo event userId:" + userId + " upToStatusId:" + upToStatusId);

              }


              public void onFriendList(long[] friendIds) {

                  System.out.print("onFriendList");

                  for (long friendId : friendIds) {

                      System.out.print(" " + friendId);

                  }

                  System.out.println();

              }


              public void onFavorite(User source, User target, Status favoritedStatus) {

                  System.out.println("onFavorite source:@"

                          + source.getScreenName() + " target:@"

                          + target.getScreenName() + " @"

                          + favoritedStatus.getUser().getScreenName() + " - "

                          + favoritedStatus.getText());

              }


              public void onUnfavorite(User source, User target, Status unfavoritedStatus) {

                  System.out.println("onUnFavorite source:@"

                          + source.getScreenName() + " target:@"

                          + target.getScreenName() + " @"

                          + unfavoritedStatus.getUser().getScreenName()

                          + " - " + unfavoritedStatus.getText());

              }


              public void onFollow(User source, User followedUser) {

                  System.out.println("onFollow source:@"

                          + source.getScreenName() + " target:@"

                          + followedUser.getScreenName());

              }


              public void onRetweet(User source, User target, Status retweetedStatus) {

                  System.out.println("onRetweet @"

                          + retweetedStatus.getUser().getScreenName() + " - "

                          + retweetedStatus.getText());

              }


              public void onDirectMessage(DirectMessage directMessage) {

                  System.out.println("onDirectMessage text:"

                          + directMessage.getText());

              }


              public void onUserListMemberAddition(User addedMember, User listOwner, UserList list) {

                  System.out.println("onUserListMemberAddition added member:@"

                          + addedMember.getScreenName()

                          + " listOwner:@" + listOwner.getScreenName()

                          + " list:" + list.getName());

              }


              public void onUserListMemberDeletion(User deletedMember, User listOwner, UserList list) {

                  System.out.println("onUserListMemberDeleted deleted member:@"

                          + deletedMember.getScreenName()

                          + " listOwner:@" + listOwner.getScreenName()

                          + " list:" + list.getName());

              }


              public void onUserListSubscription(User subscriber, User listOwner, UserList list) {

                  System.out.println("onUserListSubscribed subscriber:@"

                          + subscriber.getScreenName()

                          + " listOwner:@" + listOwner.getScreenName()

                          + " list:" + list.getName());

              }


              public void onUserListUnsubscription(User subscriber, User listOwner, UserList list) {

                  System.out.println("onUserListUnsubscribed subscriber:@"

                          + subscriber.getScreenName()

                          + " listOwner:@" + listOwner.getScreenName()

                          + " list:" + list.getName());

              }


              public void onUserListCreation(User listOwner, UserList list) {

                  System.out.println("onUserListCreated  listOwner:@"

                          + listOwner.getScreenName()

                          + " list:" + list.getName());

              }


              public void onUserListUpdate(User listOwner, UserList list) {

                  System.out.println("onUserListUpdated  listOwner:@"

                          + listOwner.getScreenName()

                          + " list:" + list.getName());

              }


              public void onUserListDeletion(User listOwner, UserList list) {

                  System.out.println("onUserListDestroyed  listOwner:@"

                          + listOwner.getScreenName()

                          + " list:" + list.getName());

              }


              public void onUserProfileUpdate(User updatedUser) {

                  System.out.println("onUserProfileUpdated user:@" + updatedUser.getScreenName());

              }


              public void onBlock(User source, User blockedUser) {

                  System.out.println("onBlock source:@" + source.getScreenName()

                          + " target:@" + blockedUser.getScreenName());

              }


              public void onUnblock(User source, User unblockedUser) {

                  System.out.println("onUnblock source:@" + source.getScreenName()

                          + " target:@" + unblockedUser.getScreenName());

              }


              public void onException(Exception ex) {

                  ex.printStackTrace();

                  System.out.println("onException:" + ex.getMessage());

              }

          };



      public void circleDraw(){

      fill(100);

                        ellipse(400,300,40,40);

      }

      public void draw(){

      }


      }