Collections choosen only for its dynamic behaviour over Arrays

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Hi Everyone,

Array is a reference type,all the collection classes are also reference types..but why Collections are choosen by many over arrays ,As mentioned in the subject, is it only for it's dynamic behaviour...Please give me a scenario with example which expalins Collections behaviour..

Regards
Chaithanya M

Posted 25-Apr-11 0:59am

M.CHAITHANYA

Updated 25-Apr-11 1:02am

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Sergey Alexandrovich Kryukov 25-Apr-11 11:33am

Your title contains the answer, a correct answer. Why bothering people with pointless question?
--SA

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OriginalGriff · Answer 1 · 2011-04-25T01:27:00

Array is a fixed type: it's size must be known in advance of adding the elements. With the other collection types, you do not need to know the size in advance. You cannot extend the size of an array: you have to declare a bigger array and copy all the existing elements into it.

Additionally, it is difficult to re-order elements of an array, or to insert an element. With teh other collections, this is generally pretty simple.

Don't forget that most (if not all) collections have a ToArray method, which allows you the best of both worlds!