I want to build simple multiply function with GUI, but every time a got an error with it, with pushbottom

function product_Callback(hObject, eventdata, handles)
x  = str2double(get(handles.Input1, 'string'));
y =  str2double(get(handles.Input2, 'string'));
multi = x*y;
set(handles.product, 'string', multi);

the error is ...........

Undefined function 'pushbutton1_Callback' for input arguments of type 'matlab.ui.control.UIControl'.

Error in gui_mainfcn (line 95)
feval(varargin{:});

Error in GUIIIIII21 (line 42)
gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)GUIIIIII21('pushbutton1_Callback',hObject,eventdata,guidata(hObject)) 
Error while evaluating UIControl Callback.

Answer 1

[Walter Roberson]

rename product_Callback to Pushbutton1_Callback

And next time use the facilities of Guide to rename controls so that it will automatically rename the references hidden inside the fig file.

[hassan khattak]

I also did this, but still the same problem.

[Walter Roberson]

Okay, then at the bottom of the .m file add

function pushbutton1_Callback(varargin)
  product_Callback(varagin{:});
end

[hassan khattak]

Thanks Sir !