Quiz Module 6

Question

Question 5 of the 6th module's answer is 15, I don't understand why, because the condition is from i=0 to i<6.

What is the output of this code?
ArrayList<Integer> list = new ArrayList<Integer>();
for (int i = 0; i < 6; i++) {
list.add(i);
}
int x = 0;
Iterator<Integer> it = list.iterator();
while (it.hasNext()) {
x+= it.next();
}
System.out.println(x);

Answer 1

This code sums all the values of the list:
0+1+2+3+4+5=15
I added some explanatory comments to the code:
https://code.sololearn.com/c8JXn2fMS7AP/?ref=app

Answer 2

You're welcome ^^

Answer 3

@Tashi N's excellent explanation should be enough unless there's need for translation.

Thanks Tashi!