can someone help me with this question?

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 1

2

Answer 2

array after declaration
arr: [ 0, 0, 0 ]
index:. 0 1 2

Loop cycle 1:. i=0
0<3 ---> true
therefore: arr[0] = 0;

Loop cycle 2:. i=1
1<3 ---> true
therefore: arr[1] = 1;

Loop cycle 3:. i=2
2<3 ---> true
therefore: arr[2] = 2;

Loop cycle 4:. i=3
3<3 ---> False
therefore:. loop ends

array after loop
arr: [ 0, 1, 2 ]
index:. 0 1 2

int res = 0 + 2;
System.out. println(2);

Answer 3

2

Answer 4

2

Answer 5

2

Answer 6

2

Answer 7

2

Answer 8

2

Answer 9

2

Answer 10

2

Answer 11

2

Answer 12

2

Answer 13

2

Answer 14

2

Answer 15

2

Answer 16

This was hard for me, too! Thanks everyone!