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Thank you for the answer.

There are some advices in my project text:

-the structure of classes cant be modified
-the iterators can use support structures
-the iterators must throw...

thanks for the help,

but i need an algorithm for implement the method toArray() of HashSet Class.

the problem is that my HashSet (custom class, not standard HashSet.java) is implemented with...

Hello,

I have a problem with arrays.

if i have an array of Integers (EX. Object[] tab = new Object[20];, tab[0] = new Integer(2); )

is possible to sort array's members with an iterator?
...