All the variables, as well as defaults that are used in the samplers, are created through Configuration elements. In case the need to change the request raised by the sampler is felt, configuration elements can perform this task. With the help of this, Java testing can be made simple by setting the default values. Configuration elements are very helpful when it comes to setting more than one user logins for the web pages. Also, default values can be set which it which are used by the HTTP controller.
