Question

In C+ one can use iterators for writing to a sequence. Simplest example would be:

vector<int> v;
for (vector<int>::iterator it = v.begin(); it!=v.end(); ++it) {
    *it = 42;
}

I need something more complicated – keep iterator as a class member for a later use.
But I don’t know how to get this behavior from Java iterators.

Are there writable iterators in Java at all?
If not then what replaces them?

Answer 1

The ListIterator (which you can obtain by List#listIterator()) has add() and set() methods which allows you to respectively insert and replace the item at the currently iterated index. That’s as far the only “writable iterator” as I can think of in Java.

_{Not sure though if that is the exact replacement of the given C++ code since I don’t know C++.}