TwitterTrendingTopics.java

package com.milind.twitter.trends;

import java.io.IOException;
import twitter4j.Trend;
import twitter4j.Trends;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.conf.ConfigurationBuilder;

/**
 *
 * @author Milind
 */
public class TwitterTrendingTopics {
    public static void main(String[] args) throws IOException, TwitterException {
        ConfigurationBuilder cb = new ConfigurationBuilder();
        cb.setDebugEnabled(true)
                .setOAuthConsumerKey("3jmA1BqasLHfItBXj3KnAIGFB")
                .setOAuthConsumerSecret("imyEeVTctFZuK62QHmL1I0AUAMudg5HKJDfkx0oR7oFbFinbvA")
                .setOAuthAccessToken("265857263-pF1DRxgIcxUbxEEFtLwLODPzD3aMl6d4zOKlMnme")
                .setOAuthAccessTokenSecret("uUFoOOGeNJfOYD3atlcmPtaxxniXxQzAU4ESJLopA1lbC");
        TwitterFactory tf = new TwitterFactory(cb.build());
        Twitter twitter = tf.getInstance();
        Trends trends = twitter.getPlaceTrends(1);
        int count = 0;
        for (Trend trend : trends.getTrends()) {
            if (count < 10) {
                System.out.println(trend.getName());
                count++;
            }
        }
    }
}

This file gives you the top 10 worldwide trending topics on twitter