Hi,

I'm trying to use the Twitter API to build up a list of tweets to use later in the program. Using the Twitter4J library, I've gotten this far:

Code:

try {
    tempTweets = twitter.getPublicTimeline(); //returns 20 most recent public tweets
    for( int i=0; i<tempTweets.size(); i++ ) {
	Status status = (Status)tempTweets.get(i);

	tweets.add(0,"hello");
	println(status.getUser().getName() + ":" + status.getText());
    }
  }
  catch( TwitterException e) { 
    println(e.getStatusCode());
  } 

This successfully performs call after call, printing the tweets. Since only 20 tweets can be called at once, I need to run the code I have a few times, each time adding the resulting list to the end of a 'master' list, which will, after the specified number of runs (let's say 5), contain 100 tweets. Everything I've tried using the add and addAll functions has resulted in a NullPointerException, however, so I'm hoping someone can point me in the right direction. I have a second list defined, called 'tweets', and I need to add 'tempTweets' to the end of it each time this code runs.

Any help would be greatly appreciated - thank you in advance!

koogy wrote on Jan 17^th, 2010, 10:59am:


That was it! I had set it up as a List. Thank you very much. I should be able to cycle through items in this ArrayList now using a simple loop, right

Also - didn't notice I'd created 5, it kept giving me an error when I clicked 'Post' - I guess it was going through anyways. Deleted, sorry about that.