how to use string within a line of code

I was trying to use a string as a object handle within a for loop to save space as following:

function pushbutton1_Callback(hObject, eventdata, handles)
for Button = 1
    Button = num2str(Button);
    Obj = strcat('handles.Num',Button);
    set(str2func(Obj), 'ForegroundColor','red')
    set(handles.Num1, 'ForegroundColor','red')
end

I would like to use Obj to replace handles.Num1. is there any way to do this?

Answer 1

[Adam]

handles.( [ 'Num', num2str( button ) ] )

should work, although quite what you are doing with Button I can't work out

for Button = 1

is pointless and

Button = num2str(Button);

overwriting the loop variable is also not good code.

[Peng Zhao]

Thank you, this works. And because Button was only a temp variable that I used for the loop, that's why I was overwriting it.

[Adam]

loop variables are usually temporary, but you don't overwrite them in the loop.