get Twitter OAuth

Auth.java

package jp.hatak.twitterbot.util;

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 Auth {

	private static final String consumerKey = "set consumer key";
	private static final String consumerSecret = "set consumer secret";
	
	public static void main(String args[]) throws Exception{
	    Twitter twitter = TwitterFactory.getSingleton();
	    twitter.setOAuthConsumer(consumerKey, consumerSecret);
	    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 aviailable) 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 te) {
	        if(401 == te.getStatusCode()){
	          System.out.println("Unable to get the access token.");
	        }else{
	          te.printStackTrace();
	        }
	      }
	    }

	    System.out.println("consumerKey = \"" + consumerKey + "\"");
	    System.out.println("consumerSecret = \"" + consumerSecret + "\"");
	    System.out.println("accessToken = \"" + accessToken.getToken() + "\"");
	    System.out.println("accessTokenSecret = \"" + accessToken.getTokenSecret() + "\"");
	    
	    System.exit(0);
	  }
}