public class test
{
public static void main(String str[])
{
String jsonString = "{"stat": { "sdr": "aa:bb:cc:dd:ee:ff", "rcv": "aa:bb:cc:dd:ee:ff", "time": "UTC in millis", "type": 1, "subt": 1, "argv": [{"type": 1, "val":"stackoverflow"}]}}";
JSONObject jsonObject = new JSONObject(jsonString);
JSONObject newJSON = jsonObject.getJSONObject("stat");
System.out.println(newJSON.toString());
jsonObject = new JSONObject(newJSON.toString());
System.out.println(jsonObject.getString("rcv"));
System.out.println(jsonObject.getJSONArray("argv"));
}
}