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Retweet using Twitter4j Android

i'm trying make simple app twitter and i use twitter4j library and i got good tutorial how to login and post twitter used that library. my app display timeline and had retweet button, my question how to retweet using twitter4j library?

You can call Status#retweet() or TwitterStream#retweet() with the original tweet id.
You can also use Twitter#retweetStatus(), for example:
Twitter twitter = new TwitterFactory().getInstance();
twitter.retweetStatus(idOfStatusToRetweet);

By Using Facebook Graph API, How to read Facebook wall?

I am using the facebook API in my app, i know how to post message on wall. my requirement is, i want read the wall information of user recent status information through code .
How can i achieve this...
for example. from my facebook account i want to get the latest status information.

Here's a great example of using the GraphAPI to do that
https://graph.facebook.com/me/feed?access_token={}
Try it out here: https://developers.facebook.com/tools/explorer
EDIT
I stumbled across this the other day. There's a connection from the user object called statuses, which filters the stream even more than feed. As with many graph calls, you can add ?limit=N to limit the result set. So this new way I discovered would look like:
https://graph.facebook.com/me/statuses?limit=1&access_token={}

You should use a third party API such as Easy Facebook SDK. It allows you to do what you are trying to do with ease.

U should check it out here:
http://developers.facebook.com/blog/post/385/

Twitter API in android

I'm a beginner of android and reading a book on android and found that code snippet there
twitter = new Twitter("student", "password");
twitter.setAPIRootUrl("http://yamba.marakana.com/api");
All the post I tweet goes to the site yamba.marakana.com but I don't want to see my twits in that marakana site, I want to post those directly to my twitter account(changing the "student" and "password" field ).
How can I do that? Is it a problem of APIRoouUrl? If yes then let me have the correct URL for the setAPIRootUrl() method.
By the way, I'm using jTwitter API from twitter in Android. Thanks in advance for the repliers :)

I followed the video series of the book on Youtube. He mentioned that if you want to post to the actual Twitter site, you have to submit some sort of form to Twitter as a developer for them to give you the proper information. Also, Twitter's API is probably a bit different from that of jTwitter, so it's probably not a good idea when you're just starting to learn.

How to share my links to facebook twitter

I am new in android...i have given a task to do..i have provided an textView where my link is present..i have two buttons..on with named share in facebook and other with named share in twitter..what i have to do is when i click on any of the button at first the login page of each of the facebook or twitter is opened depending upon the button click..now when the user loged in..the link present in the textview is automatically shared on the facebook..so can anyone suggest me how to do this..if possible with example..
regards
Rahul

Facebook Dev Docs
Twitter Dev Docs
Do a little search, and you will get quite a few examples.

This can be done by getting Facebook and Twitter libraries to your project. Then make object of Twiiter and Facebook classes and perform the tasks with the help of that objects.

Facebook news feed reader on android

I am trying for a facebook integration on my android application.
My requirement is to read each news feed as and when it comes, and to display it using a toast.
All the sample application I see on net are based on the web GUI.
Can anyone help me with a sample code or hint to read the updates into a variable/string in my application?
Regards,
Dhanesh

using this after login in facebook dialog..
Facebook fb = new Facebook(APP_ID);
String newsfeed=fb.request("me/home");
System.out.println(newsfeed);
for get user news feed....

I'm guessing it's easiest done using Facebook Android SDK (you need permission for your application to access someone's news feed);
http://developers.facebook.com/docs/guides/mobile/#android
And Graph API documentation is a good read too;
http://developers.facebook.com/docs/reference/api/
Maybe there's some better examples but I found those documents rather complete while I was dealing with Facebook accessing.

Check out the Facebook API at http://developers.facebook.com/

Have you looked at facebook's owns api. Mobile Apps. If they don't have a solution on getting new news, then theres probably no clean api to get news an you have to turn to a scrape api or write your own scrape functions.