final TextBox firstnameTextBox = new TextBox();
final TextBox lastnameTextBox = new TextBox();
final TextBox emailTextBox = new TextBox();
Date birthday = new Date(user.getBirthday());
DefaultFormat format = new DefaultFormat(DateTimeFormat.getMediumDateFormat());
final DateBox birthdayPicker = new DateBox(new MyDatePicker(), birthday, format);
final CheckBox validatedCheckBox = new CheckBox("Validated");
final CheckBox administratorCheckBox = new CheckBox("Administrator");
usernameTextBox.setText(user.getUsername());
passwordHintTextBox.setText(user.getPasswordHint());