GET Vehicle Location - JAVA

public class Program{
  public static void main(String[] args){
    
    // Token call goes here, see TokenGenerator example 
    
    // App Id from Fleetmatics Integration Manager (FIM) 
    String appId = "companyname-p-us-4654sdf4fa351af65dsf1d";        
        
    // Vehicle Number for vehicle you wish to get the location for
    String vehicleNumber = "6789";

    // Insert vehicle number into URI	
    String getVehicleLocationUri = String.format("https://fim.api.ENV.fleetmatics.com/rad/v1/vehicles/%s/location", vehicleNumber);  
	
    // Call method to GET vehicle location
    String location = new GET_Vehicle_Location().GetVehicleLocation(/* token auth string passed here */, getVehicleLocationUri, appId);
	
    // Display results
    System.out.println(location);
  }  
}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.net.ssl.HttpsURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class GET_Vehicle_Location
{
  public String GetVehicleLocation(String authString, String getVehicleLocationUri, String appId)
  {  
    String location = "";

    try
    {
      // Construct authentication header for FIM   
      String authHeader = String.format("Atmosphere atmosphere_app_id=%s, Bearer %s", appId, authString);             
 
      URL url = new URL(_getTokenUri);                                       // Construct a url with the earlier supplied GetToken URI
      HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();   // Open a new Https connection for transmission
      conn.setRequestMethod("GET");                                          // Set request type to GET
      conn.setRequestProperty("Authorization", authHeader);                  // Set Authorization Header
      conn.setRequestProperty("Accept", "text/plain");                       // Denote type of response expected
      conn.setDoOutput(false);                                               // Do not send request body

      // Execute request, read response. If we do not receive a 200 OK, throw exception		
      if (conn.getResponseCode() != HttpsURLConnection.HTTP_OK) {
        throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
      }

      // Reads text from a character-input stream
      BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                    
      location = br.readLine();              // Read the buffer into the location variable, not including any line-termination characters
        
      conn.disconnect();                     // End connection to free resources
                
    } catch (MalformedURLException e) {      // Required Exception
        e.printStackTrace(); 
    } catch (IOException e) {                // Required Exception
        e.printStackTrace(); 
    }
    return location;
  } 
}