Can anyone explain this code please :)

Question

public class Program
{
public static void main(String[] args) {
int num=4162;
int temp=0;

while(num>0)
{
temp = temp +num%10;
num /= 10;
}
System.out.println(temp);
}
}

Output:13

Answer 1

temp=0+2
num=416

temp=2+6
num=41

temp=8+1
num=4

temp=9+4
num=0

while loop breaks since num is not greater than 0

and 13 gets printed

in num%10 ,operator "%" returns remainder