jsoup is a Java library for working with real-world HTML. It provides a very convenient API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods.
example
String userURL = "http://azizkhani.net/admin/Posts/Add_entry.aspx";
content of this request contain this tag
<input type="text" id="txt_title" value="title" />
Document doc = Jsoup.connect(userURL).get();
doc.getElementById("txt_title").val();
http://jsoup.org/cookbook/extracting-data/selector-syntax