Source Code : Displaying Formatted Numbers for Alternate Locales

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Displaying Formatted Numbers for Alternate Locales

import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Locale;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class BigDecFormat {
  public static void main(String args[]) {
    StringBuffer buffer = new StringBuffer();
    Locale italian = new Locale("it", "IT", "EURO");
    Locale.setDefault(italian);
    BigDecimal rate = new BigDecimal(".03250000");
    BigDecimal months = new BigDecimal("12");
    BigDecimal monthlyRate = rate
        .divide(months, BigDecimal.ROUND_HALF_DOWN);
    NumberFormat pf = new DecimalFormat("#,##0.00000%");
    buffer.append("Annual rate : " + pf.format(rate.doubleValue()) + "
");
    buffer.append("Monthly rate: " + pf.format(monthlyRate.doubleValue())
        + "
");
    BigDecimal balance = new BigDecimal("10000.0000");
    NumberFormat nf = NumberFormat.getCurrencyInstance();
    for (int i = 0; i < 12; i++) {
      BigDecimal interest = balance.multiply(monthlyRate);
      balance = balance.add(interest);
      buffer.append("Balance : " + nf.format(balance.doubleValue())
          + "
");
    }
    JFrame frame = new JFrame("Balance");
    JTextArea text = new JTextArea(buffer.toString());
    JScrollPane pane = new JScrollPane(text);
    frame.getContentPane().add(pane);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(300, 300);
    frame.show();
  }
}
           
       

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