About Question enthuware.ocajp.i.v7.2.913 :

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Nisim123
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About Question enthuware.ocajp.i.v7.2.913 :

Post by Nisim123 »

So why option 4 is not correct?
Option 4 of this question says:
Every array has an implicit method named 'length' which tells you the number of elements in the array.
:?

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admin
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Re: About Question enthuware.ocajp.i.v7.2.913 :

Post by admin »

It is incorrect because arrays do not have a method named length. They do have an implicit field name length.
HTH,
Paul.

Nisim123
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Re: About Question enthuware.ocajp.i.v7.2.913 :

Post by Nisim123 »

Yes, it actually does help, so BTW on what kind of objects we can say that they do
have a method named length()...?
:o

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Re: About Question enthuware.ocajp.i.v7.2.913 :

Post by admin »

I don't have a list off hand but check the API for String, StringBuilder, List etc.

chronix
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Re: About Question enthuware.ocajp.i.v7.2.913 :

Post by chronix »

Is this a typo??

Every array has [in] implicit method named

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Re: About Question enthuware.ocajp.i.v7.2.913 :

Post by admin »

Yes, it should be "an". Fixed.
thank you for your feedback!

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