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Java Local Development Environments Advanced Tooling Refactoring

Refactoring- Type Migration

Hi, i need your help good people. I am working on windows platform. i am trying to follow the refactoring challenge as was done by Craig, unfortunately my system refuses from the start, as i try to do the type migration i get the following should i say notice, hence cant do any refactor.

it says : 'java.util.Queue' is an invalid Type.

this occurs when i try to retype Song to SongRequest.


2 Answers

Craig Dennis
Craig Dennis
Treehouse Teacher

Hmmm...Smart I'm sorry but I don't quite follow.

Are you talking when you attempt to change it from a Queue<Song>, Queue<SongRequest>. Did you make a SongRequest class?

No I didn't make a SongRequest class. Am I not working on the KaraokeMachine class?? Such that I do the type migration from Song to SongRequest?? Well I guess me missing the steps that's why me lost. May you bring me to the light.

Thanx Craig, I managed now. I was missing the SongRequest class. I am glad I managed now

Thanx Craig, I managed now. I was missing the SongRequest class. I am glad I managed now

Seth Kroger
Seth Kroger
56,412 Points

If all you're doing is changing the name of a class (or anything else) then you should use the Rename refactor, not Type Migration.

Me changing a type field, for example Its like

private Queue<Song> mSongQueue ; I need to change Song to Song Request then the renaming I would do for the mSongQueue to mSongQueueRequest.

Do know if Iam clear.