for-each vs for vs while

I wonder what is the best way to implement a "for-each" loop over an ArrayList or every kind of List.

Which of the followings implementations is the best and why? Or is there a best way?

Thank you for your help.

List values = new ArrayList();

values.add("one");
values.add("two");
values.add("three");
...

//#0

for(String value : values) {
    ...
}

//#1

for(int i = 0; i < values.size(); i++) {
    String value = values.get(i);
    ...
}

//#2

for(Iterator it = values.iterator(); it.hasNext(); ) {
    String value = it.next();
    ...
}

//#3

Iterator it = values.iterator();
while (it.hasNext()) {
    String value = (String) it.next();
    ...
}