String strJsonData = "{\"Nodes\":[{\"node\":{\"name\":\"my name\", \"surname\": \"my surname\"}}, {\"node\":{\"name\":\" regis\", \"surname\":\"saffi\"}}]}";
JSONArray jsonArray= new JSONObject(strJsonData).getJSONArray("Nodes");

for (int i=0; i < jsonArray.length(); ++ i)
{
    // silly, why put it in another object?
    JSONObject node = jsonArray.getJSONObject(i).getJSONObject("node");

    System.out.println("Name: " + node.getString("name"));
    System.out.println("Surname: " + node.getString("surname"));
}