Set a default Locale : Locales « I18N « Java Tutorial

1. Java Tutorial
2. I18N
3. Locales

import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Locale;

public class Main {
  public static void main(String[] args) {
    NumberFormat formatter = new DecimalFormat();
    Locale locale = Locale.getDefault();
    System.out.println("Locale = " + locale);
    System.out.println(formatter.format(123.123));

    locale = Locale.ITALY;
    Locale.setDefault(locale);
    formatter = new DecimalFormat();
    System.out.println("Locale = " + locale);
    System.out.println(formatter.format(123.123));
  }
}