public static void main(String[] args) {

        HashSet<BigDecimal> hashSet = new HashSet<>();

        hashSet.add(new BigDecimal("1.00"));

        TreeSet<BigDecimal> treeSet = new TreeSet<>();
        treeSet.add(new BigDecimal("1.00"));
        
        BigDecimal b1 = new BigDecimal("1.0");
        System.out.println(hashSet.contains(b1) + " " + treeSet.contains(b1));
    }