Java Array snippet result- please explain

Question

Can someone please explain why the below code snippet outputs 2?

int arr[ ] = new int[3];
for (int i = 0; i < 3; i++) {
arr[i] = i;
}
int res = arr[0] + arr[2];
System.out.println(res);

Answer 1

Firstly You had created an int array arr with length 3
then for statement
in for firstly i = 0
arr[0]=0
then when i = 1
arr[1]=1
then when i = 2
arr[2]=2
ten when i = 3
i is now not smaller than 3 so loop terminate
And Code goes to next Statement which is
int res =arr[0]+arr[2]
int res = 0 + 2
res= 2
So it is printing 3