how to create a GUI?

In fact I would like to start writing a GUI, but I do not know from where i should start, could you please tell me ?

for example I do not know if I should write with uicontrol or something else

I would like to have a GUI with two input that I can import data

Answer 1

[bym]

how about this from the FEX: GUI examples

[Niki]

thanks, you have one vote from me +1