How do you get .00 to show?

Question

I am new to java programming. We have a project we are working on that uses decimals. Say you want to enter $12.00, when you click the calculate button it shows $12.0. How do you get the second 0 to show? Any help appreciated. The variables are a double and labels are .setText using a Math.round.
Sharon

Answer 1

When one runs this program in MSDOS, it will not render the '�' sign to see this change the '$' sign and type;-
DOSPrompt>java Money >money.txt
Then one can see some real money signs - jolly nice.
/* One can test this whole program by writing in a double value at the prompt.
** It will convert the vlue to a money value such as "$15.99" or "$16.00"
** Note: the MSDOS shell does not render '�' signs given in the unicode '\u00A3'
** I have written to Bill Gates about this issue on numerous occasions and yet
** he seems unable to respond to my strongly worded letters.
** Author: Lady Margaret Thatcher (now a Baroness). */
import java.text.*;
public class Money {
public static void main (String []args) {
   double d= 0.0D;
   // Catch all exception and exit
   try {
      d = Double.parseDouble(args[0]);
   catch(Exception e){
      System.out.println("\nEnter any large floating point number");
      System.exit(0); 
   DecimalFormat decfmt = new DecimalFormat();
   decfmt.setMaximumFractionDigits(2);
   String money = '$' + decfmt.format(d); // one can change this '\u00A3' or '�' for the � sign
   if (money.length() < 4) money += ".00";
   System.out.println("Money value: "+money);
}