I need to run through a List in reverse order using Java.
So where this does it forwards:
for(String string: stringList){
//...do something
}
Is there some way to iterate the stringList in reverse order using the for each syntax?
For clarity: I know how to iterate a list in reverse order but would like to know (for curiosity's sake ) how to do it in the for each style.
The List (unlike the Set) is an ordered collection and iterating over it does preserve the order by contract. I would have expected a Stack to iterate in the reverse order but unfortunately it doesn't. So the simplest solution I can think of is this:
for (int i = stack.size() - 1; i >= 0; i--) {
System.out.println(stack.get(i));
}
I realize that this is not a "for each" loop solution. I'd rather use the for loop than introducing a new library like the Google Collections.
Collections.reverse() also does the job but it updates the list as opposed to returning a copy in reverse order.