User.java

public class User {
   private final String firstName;
   private final String lastName;
   private final boolean loggedIn;
   public User(String firstName, String lastName, boolean loggedIn) {
       this.firstName = firstName;
       this.lastName = lastName;
       this.loggedIn = loggedIn;
   }
   public String getFirstName() {
       return firstName;
   }
   public String getLastName() {
       return lastName;
   }
   public boolean isLoggedIn() {
     return loggedIn;
   }
}