countzeros

// by stack falling return type
public class test2{
	public static int numbercount(int n) {
		if(n==0) {
			return 0;
		}
		if(n%10==0) {
			return 1+ numbercount(n/10);
		}
		else {
			return numbercount(n/10);
		}
		
	}
	public static void main(String[] args) {
		int result= numbercount(1020300);
		System.out.println(result);
		
	}
	
}

// by stack building void
public class countzero {
      public static void count(int num,int zeros) {
    	  if(num==0) {
    		  System.out.println("the num of zeroes:"+zeros);
    		  return;
    	  }
    	  if(num%10==0) {
    		  zeros++;
    	  }
    	  count(num/10,zeros);
      }
      public static void main(String[] args) {
    	  count(108002,0);
      }
}