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Iterator problem

Vijay Chandran
Ranch Hand

Joined: Jan 07, 2007
Posts: 186

Dear friends,
This code gives a compiler error: Can only iterate over an array or an instance of java.lang.Iterable

Kindly provide me the explanation of this compiler error

Paul Michael
Ranch Hand

Joined: Jul 02, 2001
Posts: 697
The enhanced for loop in Java 5 works with the new Iterable interface which encapsulates an Iterator.

In your example, you are returning an Iterator instead of an Iterable.

SCJP 1.2 (89%), SCWCD 1.3 (94%), IBM 486 (90%), SCJA Beta (96%), SCEA (91% / 77%), SCEA 5 P1 (77%), SCBCD 5 (85%)
It is sorta covered in the JavaRanch Style Guide.
subject: Iterator problem
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