Firebase Realtime database getvalue() not mapping the object

Question

This is my firebase chat structure(see image below). I want to get only amitpal_name value not the others but this method fetching me all the values
I had also use this

Answer 1

change your below line

String chatis=(String) ((DataSnapshot)iterator.next()).getValue();

to

String chatis=((DataSnapshot)iterator.next()).getValue().toString();

Updated method below

    @Override
    public void onChildAdded(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {
Log.e( "OUTER ADDED IS-" , dataSnapshot.getValue().toString());
       Iterator iterator=dataSnapshot.getChildren().iterator();
        while (iterator.hasNext()){
        DataSnapshot local = (DataSnapshot) iterator.next();
            String chatis=local.getValue().toString();
            Log.e( "Inner ADDED IS-" , chatis);
        }

    }

EDIT

also below line as well after the reference initialization

dbreference.keepSynced(true);