Determine Number of Decimal Place using BigDecimal

Question

I was interested to have the following getNumberOfDecimalPlace function :
System.out.println("0 = " + Utils.getNumberOfDecimalPlace(0)); // 0
System.out.println("1.0 = " + Utils.getNumberOfDecimalPlace(1.0)); // 0
System.out.println("1.01 = " + Utils.getNumberOfDecimalPlace(1.01)); // 2
System.out.println("1.012 = " + Utils.getNumberOfDecimalPlace(1.012)); // 3
System.out.println("0.01 = " + Utils.getNumberOfDecimalPlace(0.01)); // 2
System.out.println("0.012 = " + Utils.getNumberOfDecimalPlace(0.012)); // 3
I use the following code
    public static int getNumberOfDecimalPlace(double value) {
        final BigDecimal bigDecimal = new BigDecimal("" + value);
        final String s = bigDecimal.toPlainString();
        System.out.println(s);
        final int index = s.indexOf('.');
        if (index < 0) {
            return 0;
        return s.length() - 1 - index;
    }However, for case 0, 1.0, it doesn't work well. I expect, "0" as result. But they turned out to be "0.0" and "1.0". This will return "1" as result.
0.0
0 = 1
1.0
1.0 = 1
1.01
1.01 = 2
1.012
1.012 = 3
0.01
0.01 = 2
0.012
0.012 = 3
Any solution?

Answer 1

Please [don't cross-post!|http://stackoverflow.com/questions/2296110/determine-number-of-decimal-place-using-bigdecimal], it's considered rude. If you must do it, then at least link each post so that people can find out which answers you've already got in order to avoid duplicate work on our part.
Please read [_How To Ask Questions The Smart Way_|http://www.catb.org/~esr/faqs/smart-questions.html].