java - Intent putExtra position of ArrayList -

i have arraylist of hashmaps trying put in intent detail listview. have retrieved arraylist in listview, stuck on getting correct position arraylist.

// declarations  jsonarray comments_data = null;  arraylist<hashmap<string, string>> comments_list;    // storing values   (int z=0; z < comments_data.length(); z++) {     jsonobject cd = (jsonobject)comments_data.get(z);      string commenttext = cd.getstring("text");      string username = cd.getjsonobject("from").getstring("username");      hashmap<string, string> comments_hash = new hashmap<string, string>();       comments_hash.put("text", commenttext);      comments_hash.put("from.username", username);      comments_list.add(comments_hash); }  public void onitemclick(adapterview<?> parent, view view, int pos, long id) {     intent = new intent();      i.putextra("comments_list", comments_list); // here having issue. have tried comments_list.get(pos), crashes. current 1 stores of values instead of getting values associated item clicked.      startactivity(i); }