Porting Java SE code to Blackberry

I can use this code to connect with twitter and I can get pin when I run this as a java program. I can find the pin, but how do I do this in BlackBerry simulator?

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import oauth.signpost.OAuth;
impo开发者_C百科rt oauth.signpost.OAuthConsumer;
import oauth.signpost.OAuthProvider;
import oauth.signpost.basic.DefaultOAuthConsumer;
import oauth.signpost.basic.DefaultOAuthProvider;
import oauth.signpost.signature.SignatureMethod;

public class Main {

    public static void main(String[] args) throws Exception {

        OAuthConsumer consumer = new DefaultOAuthConsumer(
                "my consumerkey",
                "mysecret key here",
                SignatureMethod.HMAC_SHA1);

        OAuthProvider provider = new DefaultOAuthProvider(consumer,
                "http://twitter.com/oauth/request_token",
                "http://twitter.com/oauth/access_token",
                "http://twitter.com/oauth/authorize");

        System.out.println("Fetching request token from Twitter...");

        // we do not support callbacks, thus pass OOB
        String authUrl = provider.retrieveRequestToken(OAuth.OUT_OF_BAND);

        System.out.println("Request token: " + consumer.getToken());
        System.out.println("Token secret: " + consumer.getTokenSecret());

        System.out.println("Now visit:\n" + authUrl
                + "\n... and grant this app authorization");
        System.out.println("Enter the PIN code and hit ENTER when you're done:");

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String pin = br.readLine();

        System.out.println("Fetching access token from Twitter...");

        provider.retrieveAccessToken(pin);

        System.out.println("Access token: " + consumer.getToken());
        System.out.println("Token secret: " + consumer.getTokenSecret());

        URL url = new URL("http://twitter.com/statuses/mentions.xml");
        HttpURLConnection request = (HttpURLConnection) url.openConnection();

        consumer.sign(request);

        System.out.println("Sending request to Twitter...");
        request.connect();

        System.out.println("Response: " + request.getResponseCode() + " "
                + request.getResponseMessage());
    }
}

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In order to open the Blackberry browser you have to call:

Browser.getDefaultSession().displayPage("myUrl");

Keep in mind that your app must be signed in order to do so. Also, I don't know if those OAuth classes will work in Blackberry.