How to update value of a variable when a button is pushed? What am I doing wrong in this code?

I have introduced a variable "value" in the opening function. I want to add a specific number in the same variable when a button is pressed and then want it to update on when next button is pressed. Then I want to display the final value of the variable "value" when pushbutton10 is pressed.

When I run this code, it gives zero as output no matter what button is pressed. Please check this code and tell me what am I doing wrong here? It would be a great help!

function varargout = aaabbb(varargin)

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @aaabbb_OpeningFcn, ...
                   'gui_OutputFcn',  @aaabbb_OutputFcn, ...
                   'gui_LayoutFcn',  [], ...
                   'gui_Callback',   []);
             
if nargin && ischar(varargin{1})
   gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before aaabbb is made visible.
function aaabbb_OpeningFcn(hObject, eventdata, handles, varargin)

% Choose default command line output for aaabbb
handles.output = hObject;
handles.value=0;
% Update handles structure
guidata(hObject, handles);

% --- Outputs from this function are returned to the command line.
function varargout = aaabbb_OutputFcn(hObject, eventdata, handles)
varargout{1} = handles.output;

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
handles.value = handles.value + 148;

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
handles.value = handles.value + 161;

% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
handles.value = handles.value + 7;

% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
handles.value = handles.value + 0;

% --- Executes on button press in pushbutton5.
function pushbutton5_Callback(hObject, eventdata, handles)
handles.value = handles.value + 45;

% --- Executes on button press in pushbutton6.
function pushbutton6_Callback(hObject, eventdata, handles)
handles.value = handles.value + 80;

% --- Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
handles.value = handles.value + 82;

% --- Executes on button press in pushbutton8.
function pushbutton8_Callback(hObject, eventdata, handles)
handles.value = handles.value + 3;

% --- Executes on button press in pushbutton9.
function pushbutton9_Callback(hObject, eventdata, handles)
handles.value = handles.value + 0;

% --- Executes on button press in pushbutton10.
function pushbutton10_Callback(hObject, eventdata, handles)
disp(handles.value)

Answer 1

[Image Analyst]

You need to put a static text label on your GUI with a tag of txtValue (or whatever you want). Then in each callback where you want to change handles.value you need to have this:

handles.value = handles.value + 80; % Or whatever value you want.
handles.txtValue.String = sprintf('The Value now = %.1f', handle.value);
% Update handles structure
guidata(hObject, handles); % Not calling this was your problem.