How to set a string value on another textbox ?

[Almedson]

Hi,

I'm really new in GWT and i need your help
My problema is

execute(){
tbxFirst.setText(tbxSecond.getText().trim());
}

How to set a string value on another textbox
And refresh my form?

i need update/refresh the form. how i do that?
What i have to do?

Thanks,
Almedson