formatcurrency.java

《A first book of java》by Gary J.Bronson 北大出版社

import java.text.*;
public class FormatCurrency
{
  public static void main(String[] args)
  {
    NumberFormat num = NumberFormat.getCurrencyInstance();
    
    System.out.println("The dollar amounts are:");
    System.out.println(num.format(2143));
    System.out.println(num.format(3.7));
    System.out.println(num.format(3333.777));
    System.out.println(num.format(3333.444));
  }
}