Over a year ago, I wrote an article on how to update Twitter status using Twitter4J:
Update your Twitter status with Java
Note that I was using the version 2.1.7 of Twitter4J at that time.

Following a few comments from users who were getting errors, I decided to get my code working on the latest version of Twitter4J, the version 2.2.5. 🙂

This is the two differences I found:

1. The package twitter4j.http has been renamed twitter4j.auth;
2. The constructor of the object twitter4j.auth.OAuthAuthorization has changed and now only take an object of type twitter4j.conf.Configuration.

Considering this, please find below the updated code to get the access token:

import java.io.BufferedReader;
import java.io.InputStreamReader;

import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;

public class TwitterAccessToken {
	private static final String CONSUMER_KEY = "[your consumer key]";
	private static final String CONSUMER_SECRET = "[you consumer secret]";

	public static void main(String[] args) throws Exception {
 		Twitter twitter = new TwitterFactory().getInstance();
		twitter.setOAuthConsumer(CONSUMER_KEY, CONSUMER_SECRET);
		RequestToken requestToken = twitter.getOAuthRequestToken();
		AccessToken accessToken = null;
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		while (null == accessToken) {
			System.out.println("Open the following URL and grant access to your account:");
			System.out.println(requestToken.getAuthorizationURL());
			System.out.print("Enter the PIN (if available) or just hit enter.[PIN]:");
			String pin = br.readLine();
 			try {
				if (pin.length() > 0) {
					accessToken = twitter.getOAuthAccessToken(requestToken, pin);
				} else {
					accessToken = twitter.getOAuthAccessToken();
				}
			} catch (TwitterException e) {
				if (401 == e.getStatusCode()) {
					System.err.println("Unable to get the access token.");
				} else {
					e.printStackTrace();
				}
			}
		}

		System.out.println("Access Token: " + accessToken.getToken());
		System.out.println("Access Token Secret: " + accessToken.getTokenSecret());
	}
}

And here is the amended code which allows to update your Twitter status:

import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.OAuthAuthorization;
import twitter4j.conf.ConfigurationBuilder;

public class TwitterTest {
	private static final String ACCESS_TOKEN = "[your access token]";
	private static final String ACCESS_TOKEN_SECRET = "[your access token secret]";
	private static final String CONSUMER_KEY = "[your consumer key]";
	private static final String CONSUMER_SECRET = "[you consumer secret]";

    public static void main(String[] args) {
    	ConfigurationBuilder builder = new ConfigurationBuilder();
    	builder.setOAuthAccessToken(ACCESS_TOKEN);
    	builder.setOAuthAccessTokenSecret(ACCESS_TOKEN_SECRET);
    	builder.setOAuthConsumerKey(CONSUMER_KEY);
    	builder.setOAuthConsumerSecret(CONSUMER_SECRET);
        OAuthAuthorization auth = new OAuthAuthorization(builder.build());
        Twitter twitter = new TwitterFactory().getInstance(auth);
		try {
			twitter.updateStatus("Hello World!");
		} catch (TwitterException e) {
			System.err.println("Error occurred while updating the status!");
			return;
		}
        System.out.println("Successfully updated the status.");
    }
}

See you maybe next year for an update on using the version 2.3 of Twitter4j. 😉