Parsing JSON by json simple -Java

package mine;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

import org.json.simple.JSONObject;
import org.json.simple.JSONValue;

public class Js {

public void getWeather(String cityname) {

URL url;

try {
// Connect to URL
url = new URL("http://restapi.demoqa.com/utilities/weather/city/" + cityname);

URLConnection uc = url.openConnection();

BufferedReader br = new BufferedReader(new InputStreamReader(uc.getInputStream()));

// Create Json Object to parse
JSONObject obj = (JSONObject) JSONValue.parseWithException(br);

// Get data by Key
cityname = (String) obj.get("City");
String temp = (String) obj.get("Temperature");
String humid = (String) obj.get("Humidity");
String windspeed = (String) obj.get("WindSpeed");
String winddirect = (String) obj.get("WindDirectionDegree");

System.out.println("City: " + cityname);
System.out.println("Tempreture: " + temp);
System.out.println("Humidity: " + humid);
System.out.println("WindSpeed: " + windspeed);
System.out.println("WindDirectionDegree: " + winddirect);

br.close();

} catch (Exception e) {

e.printStackTrace();
}

}

public static void main(String[] args) {
Js j = new Js();
j.getWeather("Vasco");

}
}