Java 8 "var"

As I'm going through the tutorials, some of them use var, a keyword introduced in Java 11. I'm still on Java 8. Anyone know the equivalent?

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);

    }

}