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Doubt: K&B 1.5 p. 286; table 4-1 (� instanceof�)

 
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Any intanceof check using Foo[] gives a compile error: �.class� expected.

Here�s my code:


Am I missing the point?

Richard
 
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Remember f is the reference.
 
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Hi Richard,

I think you must specify the lefthand operator more specific:
--> if ( f[0] instanceof Foo ) ;
--> if ( f instanceof Object) System.out.println("Object");

Good luck.
 
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Hi Richard,

Follow this link
 
Richard Boren
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Ok, ok. So what the table is saying is that a Foo array object (Foo[]) �IS-A� Object, but fails the �IS-A� test for Foo, Bar, or Face? And a Foo array element (Foo[1]) �IS-A� Foo, Bar, Face and Object since that�s what the Foo array can hold?

Excuse me while I turn my face. I�m feeling a little foo. I think I�m going to bar.

Richard
 
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I think you have it. an array of XYZ objects is NOT an XYZ object.

the objects IN the array ARE of that type.

all arrays are Objects (note capital 'O').
 
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