How to access one of the elements in the cell array in GUI

Hello,

I am having trouble to access the one single element out of the cell array. I am not getting an idea how to access.

Here is the code i have wriiten where in some data gets stored in the cell array. I have not wriiten for accessing.

function Popup_Vehicleline_Callback(hObject, eventdata, handles)

% hObject handle to Popup_Vehicleline (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

contents = cellstr(get(hObject,'String')) %returns Popup_Vehicleline contents as cell array

contents{get(hObject,'Value')};

handles.copy.select_vehicleline= get(hObject,'String')

guidata(hObject, handles);

Thanks for the help in advance!

[Stephen23]

https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-cell-array.html