BigDecimal adding wrong value

Question

I have a BigDecimal defined like this:

private static final BigDecimal sd = new BigDecimal(0.7d);

if i print it, i get the val

Answer 1

Use a String literal:

private static final BigDecimal sd = new BigDecimal("0.7");

If you use a double, actually public BigDecimal(double val) is called. The reason you do not get 0.7 is that it cannot be exactly represented by a double. See the linked JavaDoc for more information.