用for循环怎么改变利率，计算利率分别为5%，6%,7%,8%,9%,10%。为JTextArea增加滚动功能。求解

Question

package chp1;import java.text.NumberFormat; import java.util.Locale;  import javax.swing.JOptionPane;import javax.swing.JTextArea;public class Interest {   public static void main( String args[] )   {      double amount;           double principal = 1000.0;        double rate = 0.05;               NumberFormat moneyFormat =          NumberFormat.getCurrencyInstance( Locale.US );      JTextArea outputTextArea = new JTextArea();      outputTextArea.setText( "Year\tAmount on deposit\n" );      for ( int year = 1; year <= 10; year++ ) {         amount = principal * 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 );    } }