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plurals

POCasting an array of Objects into an array of my intended class
primarykey
Id
395030
data
AcceptedAnswerId
395038
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2008-12-27T14:09:31.333
FavoriteCount
7
LastActivityDate
2018-07-16T14:40:41.310
LastEditDate
2018-07-16T14:40:41.310
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1683629
OwnerUserId
19825
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0
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1
Score
28
ViewCount
46673
LastEditorDisplayName
Daddy Warbox
text
Body
Just for review, can someone quickly explain what prevents this from working (on compile): <pre><code>private HashSet data; ... public DataObject[] getDataObjects( ) { return (DataObject[]) data.toArray(); } </code></pre> ...and what makes this the way that DOES work: <pre><code>public DataObject[] getDataObjects( ) { return (DataObject[]) data.toArray( new DataObject[ Data.size() ] ); } </code></pre> I'm not clear on the mechanism at work with casting (or whatever it is) that makes this so.
Tags
<java><collections><casting><object>
Title
Casting an array of Objects into an array of my intended class
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1. USNorill Tempest
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1. USDaddy Warbox
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 POCasting an array of Objects into an array of my intended class
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