Euler Problem 40 solution

Time (s): ~0.008

package margusmartseppcode.From_40_to_49;

public class Problem_40 {
 public static void main(String[] args) {
  int size = 100000, result = 1;
  StringBuilder sb = new StringBuilder(size + 200);

  for (int i = 1; sb.length() <= 100000; i++)
   sb.append(i);

  for (int count = 1; count <= size; count *= 10)
   result *= Character.getNumericValue(sb.charAt(count - 1));

  System.out.println(result);
 }
}