import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;
public class piDigitSum{
   public static void main(String[] args){
      try{
         File source = new File("/Users/Richard/Desktop/50000PiDecimals.txt");
         Scanner input = new Scanner(source);
         String readIn = input.next();
         int sum = 0;
         for(int i=0; i<= 31415; i++){
            if(Character.getNumericValue(readIn.charAt(i)) %2 == 1){

               sum += Character.getNumericValue(readIn.charAt(i));
            }
         }
         System.out.println(Integer.toBinaryString(sum));
      }
      catch(FileNotFoundException e){
         System.out.println("The File was not found");
      }
   }
}




OUTPUT:

>>10011001101001001