(Arrays) Module 3 Quiz - Second question

Question

Hi,

I can't seem to figure out why the answer to the second question is 17.
This is the code:

What is the output of this code?
int result = 0;
for (int i = 0; i < 5; i++) {
if (i == 3) {
result += 10;
} else {
result += i;
}
}
System.out.println(result);

Could someone explain this? Thanks in advance!

Answer 1

first interaction:
i = 0
result += i => result = 0

second interation:
i = 1
result += I => result = 1

third iteration
I = 2
result => 1 + 2 => 3

fourth iteration
I = 3

if ( I == 3) result += 10

result = 3 + 10 => result = 13

fifth iteration
I = 4

result = 13 + 4 => result = 17

don't get confused I is the same as i, my auto correction is stupid :P

Answer 2

Hi
I don't understand that for 1st question why the answer is 2.

I don't understand this code at all.

Question
What is the output of this code?

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 3

Ah, clear explanation, does makes sense now! Thanks for the answer :).