XMLHttpRequest equivalent call in java

Hi, All
I am making XMLHttpRequest through javascript. Can anyone let me know the equivalent code in java:
http_request = new XMLHttpRequest();
http_request.onreadystatechange = alertContents;
     if(method=='POST') {
               http_request.open(method, url, true);
               http_request.setRequestHeader("Content-type", "text/xml");
               http_request.setRequestHeader("Content-length", parameters.length);
               http_request.setRequestHeader("Connection", "close");
// alert('before sending request');
               http_request.send(parameters);
//alert('after sending request');
Thanks much..

Hi,
The code for javascript is already there... I am looking for equivalent java call.
Thanks.

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