There are many frameworks available for building a Java client for accessing REST. The JAX-RS specification standardizes the client APIs and provides fluent APIs for interaction with the RESTful web service.
Fluent APIs allow you to chain method calls to perform the desired operation, which improves the readability of the code. The return value of the called method gives a context for the next call and is terminated through the return of a void context. You can learn more about the fluent APIs at https://en.wikipedia.org/wiki/Fluent_interface.