import java.text.NumberFormat;
public class Main {
public static void main(String[] argv) throws Exception {
NumberFormat nf = NumberFormat.getCurrencyInstance();
System.out.println("currency format: " + nf.format(1234.56) + " "
+ nf.format(-1234.56));
}
}
//currency format: $1,234.56 -$1,234.56