Why does new BigDecimal("0.015").compareTo(new BigDecimal(0.015)) return -1? [duplicate]

Question

Why does new BigDecimal("0.015").compareTo(new BigDecimal(0.015)) return -1? If I expect those two to be equal, is there an alternative way to compare them?

Answer 1

Due to the imprecise nature of floating point arithmetic, they're not exactly equal

System.out.println(new BigDecimal(0.015));

displays

0.01499999999999999944488848768742172978818416595458984375