Given 2 positive int values, return the larger value that is in the range 10..20 inclusive, or return 0 if neither is in that range.

public int max1020(int a, int b) {
   if( a < 10 || a > 20 && b < 10 || b > 20 )
	return 0;

   if( a > b )
	return a;
   else
	return b;
   }