Perguntas de entrevista de vagas de Java Developer da empresa Professional Access

There was a written test. Db has User Id, Username and Password. Write a program to take input from user check and display success or error. Use Object Oriented concept and design. Assumptions can be made Struts Framework was asked to be used. Show a login Page and verify if a given user is a valid user. Show a welcome message if the user is valid else display an error message. Base your solution on the above guidelines.