Count Circles in Numbers

count how many circle in numbers
examples:

8809 = 6	7111 = 0
2172 = 0	6666 = 4
1111 = 0	3213 = 0
7662 = 2	9312 = 1
0000 = 4	2222 = 0
3333 = 0	5555 = 0

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import java.util.*; public class CountCircle { public static void main(String args[]) { int n =900082; int count = 0; //0,1,2,3,4,5,6,7,8,9 int x[] = {1, 0, 0, 0, 0, 0, 1, 0, 2, 1}; while (n > 0) { count += x[n % 10]; n /= 10; } System.out.print(count); } }