Erro no código

import java.text.NumberFormat;
import java.util.Locale;

import javax.swing.JOptionPane;
import javax.swing.JTextArea;

public class Juros {

   public static void main (String args[])
   {

      double amount, principal = 1000.0, rate = 0.05;

      NumberFormat moneyFormat =
         NumberFormat getCurrencyInstance ( Locale.BR);
      JTextArea outputTextArea = new JTextArea();

      outputTextArea.setText("Year\tAmount on deposit\n");

      for (int year =1; year<=10; year++) {

         amount = principál *Math.pow(1.0+rate,year);
	 outputTextArea.append( year + "\t"+
	    moneyFormat.format(amount) + "\n");
      }

      JOptionPane.showMessageDialog(null, outputTextArea,
         "Compound Interest", JOptionPane.INFORMATION_MESSAGE);

      System.exit(0);

   }
}