Question

Possible Duplicate:
Strange floating-point behaviour in a Java program
Why does JSP/JSTL division by 1000 sometimes give remainder?

I am trying to get the numbers after the decimal.
ex: 60.4 -> 0.4

Yet, when do

double a = 60.4 % 1;

it comes out to be 0.3999999999999986.

Why is this? And how could it be fixed?

Answer 1

Use fixed-point types

BigDecimal src = new BigDecimal("60.4");
BigDecimal a = src.remainder(BigDecimal.ONE);