Collection, which method is used to authorize an add of an element ?

Posted by Duke Vador on Stack Overflow See other posts from Stack Overflow or by Duke Vador
Published on 2010-05-22T10:10:33Z Indexed on 2010/05/22 10:20 UTC
Read the original article Hit count: 190

Filed under:

java

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collection

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equals

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add

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hashcode

We find a lot of concrete subclasses under Collection.

While trying to add an element in a concrete collection, this collection will use a method to determine if it can accept to store the element (and eventually that this element is not already in the collection). It could use equals(), hashCode() or compareTo() of the element.

Is it possible to find a summary about which method is used by each implementation of Collection ?

Thanks a lot for your answers.

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