MATLAB GUI GET SET ERROR

Hello,

I am trying to design a GUI.

I have 5 edit texts named(q1,q2,q3,q4,q5). I cannot get these strings into (q1,q2,q3,q4,q5) . How can i get them

Start button's gui code:

allNumbers=0;

SymbolsShift={'"' '!' char(39) '^' '+' '%' '&' '/' '(' ')' '=' '?' '_'};
SymbolsAltGr={'@' '#' '$' '{' '[' ']' '}' char(92)};
SymbolsNormal={'*' '-'} ;
SymbolsDown={'<' '>' '.' ':' '|'};
SymbolsNumber={'1' '2' '3' '4' '5' '6' '7' '8' '9' '0'};

if allNumbers==1
    allSymbols=[SymbolsNumber];
else
    allSymbols=[SymbolsShift SymbolsAltGr SymbolsNormal SymbolsDown];
end

alpha1=0.7;
alpha2=0.3;
M=5;
%N=100;
N=15;
CorrectlyTyped=0;
tic
k=0;

actualCell=allSymbols([floor(length(allSymbols)*rand(M,1))+1]);
% % % %     actualCell={char(92) char(92) char(39) char(39) char(92)};
    actualMat=cell2mat(actualCell);
    backSlashes=find(actualMat==char(92));
    kk=1;
    global forScreen
    forScreen = [];
    for jj=1:M
        if ismember(jj,backSlashes)
            forScreen(kk:kk+1)='\\';
            kk=kk+2;
        else
            forScreen(kk)=actualMat(jj);
            kk=kk+1;
        end
    end
   set(handles.q1,'String', char(forScreen(1)));          
   set(handles.q2,'String', char(forScreen(2)));
   set(handles.q3,'String', char(forScreen(3)));
   set(handles.q4,'String', char(forScreen(4)));
   set(handles.q5,'String', char(forScreen(5)));

Here is the user's input gui code

function input_Callback(hObject, eventdata, handles)
% hObject    handle to input (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 input as text
%        str2double(get(hObject,'String')) returns contents of input as a double
tic;
 userinput = get(hObject,'String');
 ts=toc;
 disp(ts);
 a = 5 
 
 tratio = ts/a ; 
 
 
 

n = length(userinput);
if (n >= 6)
   f = msgbox('YOUR CHARACTERS ARE MORE THEN 5 ','Error','error' )
elseif (n <= 4)
    g = msgbox('YOUR CHARACTERS ARE LESS THEN 5 ','Error','error' )
    

    

    
     
    
    
end

get(handles.q1,'String');
get(handles.q2,'String');
get(handles.q3,'String');
get(handles.q4,'String');
get(handles.q5,'String');
set(handles.text10,'String', q1,q2,q3,q4,q5);

The idea of GUI : MATLAB give random characters in below 5 edit text box. Each one represents 1 character. Also, user will enter the same characters above the start and check buttons. I want to get those 5 values, compare with the user's input. How can i do that ?