Hello! So I'm trying to get the very last part of this code to show up as "The total accumulation is: $(whateverMynumberEquals)" in the GUI. The problem is that I'm using a floating point and I have no clue how to put it in proper form so that it shows up correctly. I put what I THOUGHT it would be below, so you can tell me what's right and what's not. Or should I make it a variable and THEN put it in the GUI? I just need the box to show the number with two decimal points only. Anyways, as you can see, I don't know what I'm doing with it, so please help! Thanks!

import java.util.Scanner; import javax.swing.JOptionPane; public class CompoundInterest { /** * @param args */ public static void main(String[] args) { Scanner QWERTY = new Scanner(System.in); JOptionPane.showMessageDialog(null, "Welcome to the Compound Interest Calculator!"); JOptionPane.showMessageDialog(null, "We are going to ask you for certain information in order calculate your interest!"); System.out.println(); double P = 0; P = Double.parseDouble( JOptionPane.showInputDialog("What is the initial deposit (principle)? Numbers only please!")); JOptionPane.showMessageDialog(null, "The value entered is: $" + P); double r = 0; r = Double.parseDouble( JOptionPane.showInputDialog("What is the annual interest rate in percent? [xx.yy]")); JOptionPane.showMessageDialog(null, "The value entered is: " + r); int q = 0; q = Integer.parseInt( JOptionPane.showInputDialog("What is the number of times the compounding is done per year?")); JOptionPane.showMessageDialog(null, "The value entered is: " + q); double n = 0; n = Double.parseDouble( JOptionPane.showInputDialog("How many years is the principle left in deposit?")); JOptionPane.showMessageDialog(null, "The value entered is: " + n); r = (r/100); double exponent = Math.pow(1 + r/q, n*q); double A = 0; A = P * exponent; JOptionPane.showMessageDialog(null, "The total accumulation is:" + System.out.printf("$%.2f\n", A)); } }