Java programs use the DateFormat.getDateInstance(int, locale) method to parse and format dates in a locale-sensitive manner. Java programs use the NumberFormat.get`XXX`Instance(locale) method, where XXX can be Currency, Number, or Percent, to parse and format numerical values in a locale-sensitive manner.

An application can use date/time and number converters to format dates and numbers in a locale-sensitive manner. For example, a shipping date could be converted as follows:

<h:outputText value="#{cashier.shipDate}">
    <f:convertDateTime dateStyle="full"/>
</h:outputText>