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- package ass.sivakfil.cvi4.task1;
- import java.util.Optional;
- public class UserToAddressNice {
- public static Optional<String> userToStreet(User user) {
- return Optional.ofNullable(user)
- .map(usr -> usr.getAddress())
- .map(addr -> addr.getStreet());
- }
- }
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