Question

Lets assume we have one million.

In English it should be formatted as 1,000,000 in German it should be 1.000.000.

Answer 1

Using NumberFormat class:

For English:

NumberFormat nf_us = NumberFormat.getInstance(Locale.US);
String number_us = nf_us.format(1000000);

For German:

NumberFormat nf_ge = NumberFormat.getInstance(Locale.GERMAN);
String number_ge = nf_ge.format(1000000);