Using REST api in Java

gistfile1.java

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;
import com.google.gson.stream.JsonReader;

import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
 * Created by IntelliJ IDEA.
 * User: sanaulla
 * Date: 30/4/12
 * Time: 7:06 PM
 * To change this template use File | Settings | File Templates.
 */
public class RestfulDemo {
    public static void main(String [] args) throws IOException{
        Scanner commandlineReader = new Scanner(System.in);
        System.out.println("Enter the screen name");
        String screenName = commandlineReader.nextLine();
        TwitterTimeline myTimeline = new TwitterTimeline(screenName);
        myTimeline.fetchTimeline();
        for ( Tweet myTweet : myTimeline.timeline){
            System.out.println(myTweet);
        }
    }
}

class TwitterTimeline{
    public String screenName;
    public List<Tweet> timeline;
        
    private String fetchUrl = "http://api.twitter.com/1/statuses/user_timeline.json?screen_name=";
    TwitterTimeline( String screenName){
        this.screenName = screenName;
    }
    
    public void fetchTimeline() throws IOException {
        fetchUrl = fetchUrl+this.screenName;
        URLConnection urlConnection =  new URL(fetchUrl).openConnection();
        urlConnection.connect();
        JsonReader reader = new JsonReader(new InputStreamReader(urlConnection.getInputStream()));
        JsonParser parser = new JsonParser();
        JsonElement rootElement = parser.parse(reader);
        JsonArray tweetsJson = rootElement.getAsJsonArray();
        timeline = new ArrayList<Tweet>();
        Gson myGson = new Gson();
        for ( JsonElement tweetElement : tweetsJson){
            Tweet myTweet = myGson.fromJson(tweetElement, Tweet.class);
            timeline.add(myTweet);
        }
        
    }
}
class Tweet{
    public String text;
    public String created_at;
    public String toString(){
        return "Posted "+text+" at "+created_at;

    }
}