how to validate edittext to accept only integers between 25 to 100

hi everyone... im trying to validate a edit text field to accept integers between 25 to 100 .i have written the following code but im not getting the result.....

function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double
num=Str2double(get(handles.edit1, 'String'));
if num<=25 && num>=100
    warndlg('invalid age');
end

please suggest if any changes are to be made in the code..anykind of help will be appreciated..

Answer 1

[Fangjun Jiang]

if num<=25 && num>=100

should be

if num<=25 || num>=100

[srinija kammari]

i accept this mistake but im still not getting the warning.. thanks

[Fangjun Jiang]

str2double(), not Str2double()

Add a breakpoint in your code and run your code line by line to see where is the error.

[srinija kammari]

thanks a lot Fangjun Jiang... i got the answer

Answer 2

[Sean de Wolski]

Use appdesigner and the numeric edit field with upper and lower limits.

https://www.mathworks.com/help/matlab/app-designer.html