java - BigDecimal multiplication returns 0? -


i'm bit of newbie @ java , have multiply 52 numbers each other ranging anywhere 0 2000. tried using *= without bigdecimal result gives me 0.0.

here code:

bigdecimal productofstock1 = bigdecimal.zero;  for(int k = 1; k <= n; k++){      for(int = 1; <= n; i++){       if (i == 1){         stockprice[k][i] = stockzero*math.pow(e, form + sigma*(randomno.nextgaussian()));       }       else {         stockprice[k][i] = stockprice[k][i-1]*math.pow(e, form + sigma*(randomno.nextgaussian()));        }       //sumofstock += stockprice[k][i];       //productofstock *= stockprice[k][i];       productofstock1 = productofstock1.multiply(bigdecimal.valueof(stockprice[k][i]));        system.out.println(/*"stock @ [" + + "] n = " + n + "  , path number " + k + " " + */stockprice[k][i]);     }   }  system.out.println(productofstock1);

this gives me 0e-637 instead of big number supposed give me. appreciated.

bigdecimal productofstock1 = bigdecimal.zero;

you need initialize 1, because

0 * x = 0

(except x= 1/0 :) )


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