About Question enthuware.ocajp.i.v7.2.851 :

[SirZed]

Are we supposed to know about AttributeList, RoleList, RoleUnresolvedList for the exam?

[admin]

Not in details, but be aware of them and the fact that they have nothing to do with Collections API.

HTH,
Paul.

[prateeks]

Do we also need to know about which is more efficient method (in terms of time) to achieve same thing?

[admin]

No, That is not required but good to know for interviews.

[crazymind]

Hi, ArrayList is not like Array-backed Lists, right? I remember Array-backed Lists is fix sized (can not delete or add). And ArrayList has a dynamic size.

[admin]

ArrayList is built using an array, that is why it is called ArrayList. Please go through the details of ArrayList either from the API or from any certification book to learn more.