What is output by the following code?

int a [] = {64, 66, 67, 37, 73, 70, 95, 52, 81, 82};

for (int i = 0; i < a. length; i++) {

a[i] = a[i] / 10;

}

for (int i = 0; i < a. length; i++) {

System. out. print (a[i] + " ");

}

1. 7 7 7 4 8 8 10 6 9 9

2. 6 6 6 3 7 7 9 5 8 8

3. 5 7 8 8 4 1 6 3 2 3

4. 2 4 5 2 2 8 6 8 1 2

5. 4 6 7 7 3 0 5 2 1 2

When numbers are divided, the integer portion is kept and the remainder is disregarded (meaning 10/9 would return 1). Following this format, we get the answer of 6 6 6 3 7 7 9 5 8 8.

I also see that this program can be optimized because you use the same for loop twice, and both of them manipulate list elements in some way. A more optimized program would be:

int a [] = {64, 66, 67, 37, 73, 70, 95, 52, 81, 82};

for (int i = 0; i < a. length; i++) {

a[i] = a[i] / 10;

System. out. print (a[i] + " ");

}

Or maybe you don't need to store the list values for later on. You could do:

for (int i = 0; i < a. length; i++) {

System. out. print (a[i] / 10 + " ");

}

In any situation, your answer is choice 2.