public interface JSONString
JSONString interface allows a toJSONString()
 method so that a class can change the behavior of
 JSONObject.toString(), JSONArray.toString(),
 and JSONWriter.value(Object). The
 toJSONString method will be used instead of the default behavior
 of using the Object's toString() method and quoting the result.| Modifier and Type | Method and Description | 
|---|---|
| java.lang.String | toJSONString()The  toJSONStringmethod allows a class to produce its own JSON
 serialization. |