Java 8 "var“等效物

Question

我正在用RingCentral编写一个教程，它使用了var。我还在用java 8，有人知道该怎么写吗？

package Call_RingOut;

import java.io.IOException;

import com.ringcentral.*;
import com.ringcentral.definitions.*;


public class Call_RingOut {
static String RECIPIENT_NUMBER = "<ENTER PHONE NUMBER>";

static String RINGCENTRAL_CLIENTID = "<ENTER CLIENT ID>";
static String RINGCENTRAL_CLIENTSECRET = "<ENTER CLIENT SECRET>";
static String RINGCENTRAL_SERVER = "https://platform.devtest.ringcentral.com";

static String RINGCENTRAL_USERNAME = "<YOUR ACCOUNT PHONE NUMBER>";
static String RINGCENTRAL_PASSWORD = "<YOUR ACCOUNT PASSWORD>";
static String RINGCENTRAL_EXTENSION = "<YOUR EXTENSION, PROBABLY '101'>";

static RestClient restClient;
public static void main(String[] args) {
    var obj = new Call_RingOut();
    try {
      restClient = new RestClient(RINGCENTRAL_CLIENTID, RINGCENTRAL_CLIENTSECRET, RINGCENTRAL_SERVER);
      restClient.authorize(RINGCENTRAL_USERNAME, RINGCENTRAL_EXTENSION, RINGCENTRAL_PASSWORD);
      obj.call_ringout()();
    } catch (RestException | IOException e) {
      e.printStackTrace();
    }
}
public void call_ringout() throws RestException, IOException {
    MakeRingOutRequest requestBody = new MakeRingOutRequest();
    requestBody.from(new MakeRingOutCallerInfoRequestFrom().phoneNumber(RINGCENTRAL_USERNAME));
    requestBody.to(new MakeRingOutCallerInfoRequestTo().phoneNumber(RECIPIENT_NUMBER));
    requestBody.playPrompt = false;

    var response = restClient.restapi().account().extension().ringout().post(requestBody);
    System.out.println("Call Placed. Call status: " + response.status.callStatus);
}
}

Answer 1

如果您将Lombok添加到您的项目中，则可以使用var in Java 8。实现并不相同，但对于您的目的来说，这是无关紧要的。

Answer 2

您可以将var替换为GetRingOutStatusResponse，它是最终消息post()的返回值的类。

GetRingOutStatusResponse response = restClient.restapi().account().extension().ringout().post(requestBody);

Answer 3

试试下面的内容

Call_RingOut obj = new Call_RingOut();

GetRingOutStatusResponse response = restClient.restapi().account().extension().ringout().post(requestBody);