This tutorial will show you an example on how to test one of the features of webservice called language independence.
Webservice is a technology by which two or more remote web applications interact with each other over network/internet. It can be implemented using Java, .net, PHP etc.
Please go through the REST webservice created using Codeigniter framework Working with RESTful services in Codeigniter – GET example
So we will call the above REST webservice created in PHP Codeigniter framework using Java language. So basically the Java language will works as a client part of the deployed service in PHP server.