How do you pass a long value in JSON Java?

[SubhanUllah]

You have to know the exact property name that is already typed as long e.g. 1L

        var url1 = UrlFetchApp.fetch('http://www.google.com/'); 
        JSONObject jsonObject = new JSONObject(urlFetch(url1)); 
//at this point we have ALL the json properties wrapped in a JSONObject called data1 
        long height = jsonObject.getLong("longValue"); //longValue has to be one of the properties in