article/loom/listing_1.java

listing_1.java

String request_1() throws Exception {
    String resultNum = requestService("http://localhost:8080/1");
    return request_2(resultNum);
}

String request_2(String num) throws Exception {
    String resultNum = requestService("http://localhost:8080/" + num);
    return request_3(resultNum);
}

String request_3(String num) throws Exception {
    return requestService("http://localhost:8080/" + num);
}

void main() throws Exception {
    try {
        String response = request_1();
        IO.println(response);
    } catch (Exception e) {
        log.log(SEVERE, "Error calling service", e);
    }
}