Java program to find out the difference of the sum of even place digit and odd place digit of a given number

import java.util.*;

public class HelloWorld {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int evensum=0;
int oddsum=0;
int diff=0;
int i=0;
while(n!=0)
{
int rem=n%10;
n=n/10;
if(i%2==0)
{
evensum+=rem;
}
else
{
oddsum+=rem;
}
i++;
}
diff=evensum-oddsum;
System.out.println(Math.abs(diff));
}
}