RestAdapter restAdapter = new RestAdapter.Builder()
.setServer(API_URL)
.build();
// Create an instance of our SimpleApi interface.
SimpleApi simpleApi = restAdapter.create(SimpleApi.class);
// Call each of the methods and output the results
System.out.println("simpleApi.simpleGet()=<<" + simpleApi.simpleGet() + ">>");
System.out.println("simpleApi.simplePost()=<<" + simpleApi.simplePost() + ">>");
System.out.println("simpleApi.simpleDelete()=<<" + simpleApi.simpleDelete() + ">>");