NF.java
import java.util.Locale;
import java.text.NumberFormat;
// Fun with number formatting.
public class NF
{
public static void main(String[] args)
{
NumberFormat nf = NumberFormat.getNumberInstance();
nf.setMinimumFractionDigits(3);
nf.setMaximumFractionDigits(7);
// First two println()s should print 7 digits.
// Third println() should print 3 digits.
System.out.println(nf.format(Math.PI));
System.out.println(nf.format(Math.E));
System.out.println(nf.format(3.2));
double x = 382.72;
tryCurrency(" US",x,Locale.US);
tryCurrency(" UK",x,Locale.UK);
tryCurrency("Germany",x,Locale.GERMANY);
tryCurrency(" France",x,Locale.FRANCE);
tryCurrency(" Italy",x,Locale.ITALY);
tryCurrency(" Japan",x,Locale.JAPAN);
}
static void tryCurrency(String label,double amount,Locale loc)
{
NumberFormat nf =
NumberFormat.getCurrencyInstance(loc);
System.out.println(label + ": " + nf.format(amount));
}
}