Getting Rid of Decimal place in Java?

Question

I am reading in java inputs in format below

2499.873639
32.374242
0.610059
...

Now i want to get rid of the decimal place and have them in this format

2499873639
32374242
610059
...

I have this code which does it for smaller number for not for larger numbers. The Larger numbers become negative (i think this overflowing) and giving it junk values.

BigDecimal b = new BigDecimal(a).multiply(new BigDecimal("1000000.")

If i increase the 0's by another two

BigDecimal b = new BigDecimal(a).multiply(new BigDecimal("100000000.")

It works for larger numbers but not smaller numbers. In short of having a bunch of if's is there anyway to fix this issue?

Answer 1

Use this :

BigDecimal b = new BigDecimal(a.toString().replace('.', ''));

Answer 2

String formattedInput = (String.valueOf(input)).replace(".", "");

Answer 3

Convert the double to String, if it is not.
Then use String.replace('.', '');
Then Convert back to int or long, if necessary.

Answer 4

You can do this with String replacement functions.

public static BigDecimal noDecimal(BigDecimal b) {
    return new BigDecimal(b.toPlainString().replace(".", ""));
}

If you already have a String rather than a BigDecimal, this can be simplified to this:

public static BigDecimal noDecimal(String s) {
    return new BigDecimal(s.replace(".", ""));
}