Question

I am trying to split number but don’t know how to do this.

I referred this link.

https://stackoverflow.com/a/12297231/1395259

Suppose I have a number 12345678.

using above link I am splitting by 3 places.So the output becomes 123 456 78.

But I want it as 12 345 678 And I want to take the string that was split in the form 12.345.678 .

Can anybody help me please??

Answer 1

java.text package provides all reasonable options for formatting numbers

    DecimalFormat f = new DecimalFormat("#,###");
    DecimalFormatSymbols fs = f.getDecimalFormatSymbols();
    fs.setGroupingSeparator('.');
    f.setDecimalFormatSymbols(fs);
    String s = f.format(12345678);
    System.out.println(s);

output

12.345.678

using DecimalFormat directly is very flexible, but typically we can use a shorter version

String s = NumberFormat.getNumberInstance(Locale.GERMAN).format(12345678);

which produces the same string

12.345.678

Different countries have different rules for formatting numbers (and dates). Usually we want our programs to be internationalized / localized and use default locale version

NumberFormat.getNumberInstance().format(number);