gistfile1.java

// assumes you have already gotten this json back from an Http server:
// [{"id":1,"firstName":"j","lastName":"v"},{"id":2,"firstName":"Dr. a","lastName":"b"}]
// and stored it in a String called json

JSONArray json = new JSONArray(json);

// loop over each individual json object:
// a single json object looks like: {"id":1,"firstName":"j","lastName":"v"}
int count = json.length();
for (int i = 0; i < count; i++) {
  JSONObject jsonObj = json.getJSONObject(i);
  // now we can access the individual keys 
  // in the jsonObj:
  int id = jsonObj.getInt("id");
  String firstName = jsonObj.getString("firstName");
  String lastName = jsonObj.getString("lastName");
}