System.out.println( "\n\nResult of GET (for the test-PUT):\n" + response );
System.out.println("\n");
// "POST" (test-map into a sub-node off of the fb4jDemo-root)
response = firebase.post( "test-POST", dataMap );
System.out.println( "\n\nResult of POST (for the test-POST):\n" + response );
System.out.println("\n");
// "DELETE" (it's own test-node)