What is the output and how?

Question

int []a = {1,2,3,4,1};
for(int n : a)
a[n] = 0;
for(int n : a)
System.out.println(n);

Answer 1

The output is 00301 :
- 1st element is 1 : a[1] = 0 => 10341
- 2nd element is now 0 : a[0] = 0 => 00341
- 3rd element is 3 : a[3] = 0 => 00301
- 4th element is now 0 : a[0] = 0 => 00301
- 5th element is 1 : a[1] = 0 => 00301

Answer 2

Thnx