Design a class that displays a login screen for a website. Provide the space for the user name and password. Also provide there two buttons labeled “Enter” and “Cancel.” For now, do not check the...

Design a class that displays a login screen for a website. Provide the space for the user name and password. Also provide there two buttons labeled “Enter” and “Cancel.” For now, do not check the validity of the name and password, but instead simply display a welcome message that includes the user name.