Taking input from table and save it by pressing push button on that table...

What I want is that i take input form the user. Let it be N. Afterwards a table will be generated of order (N,2) and user will provide values in the cells and when press submit on that table, the values should be saved and are available for to use in other functions. I have developed the code, but its not working. Kindly solve this issue. Thank you in advance.

function varargout = My(varargin)
% MY MATLAB code for My.fig
%      MY, by itself, creates a new MY or raises the existing
%      singleton*.
%
%      H = MY returns the handle to a new MY or the handle to
%      the existing singleton*.
%
%      MY('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in MY.M with the given input arguments.
%
%      MY('Property','Value',...) creates a new MY or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before My_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to My_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help My

% Last Modified by GUIDE v2.5 03-Aug-2019 16:45:16

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @My_OpeningFcn, ...
                   'gui_OutputFcn',  @My_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 My is made visible.
function My_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to My (see VARARGIN)

% Choose default command line output for My
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes My wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = My_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on button press in enter.
function enter_Callback(hObject, eventdata, handles)
% hObject    handle to enter (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)



 
    

      handles.f = figure('Position',[80 100 200 360]);
 
cnames = {'X Coordinate','Y Coordinate'};
rnames = {'First','Second','Third'};
RR=str2double(get(handles.No,'String'));
dat = rand(RR,2)


handles.t = uitable('Parent',handles.f,'Data',dat,'Position',[80 100 200 360]);
 handles.b = uicontrol('Parent',handles.f,'Style','pushbutton','String', sprintf('Submit'),'Callback',@Submit_Callback);
        guidata(hObject, handles);
   


% --- Executes on button press in OK.


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

handles.data= get(handles.t,'Data')
if iscell(data)
  data = cell2mat(data)
end


guidata(hObject, handles);




function No_Callback(hObject, eventdata, handles)
% hObject    handle to No (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 No as text
%        str2double(get(hObject,'String')) returns contents of No as a double


% --- Executes during object creation, after setting all properties.
function No_CreateFcn(hObject, eventdata, handles)
% hObject    handle to No (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end