Java JFormattedTextField get value and cast

import java.awt.BorderLayout;
import java.math.BigDecimal;
import java.text.DecimalFormat;

import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.text.DefaultFormatter;
import javax.swing.text.DefaultFormatterFactory;
import javax.swing.text.NumberFormatter;

public class Main {
   public static void main(final String args[]) throws Exception {
      JFrame frame = new JFrame("Formatted Example");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      JFormattedTextField input = new JFormattedTextField(new BigDecimal("123.4567"));
      DefaultFormatter fmt = new NumberFormatter(new DecimalFormat("#.0###############"));
      fmt.setValueClass(input.getValue().getClass());
      DefaultFormatterFactory fmtFactory = new DefaultFormatterFactory(fmt, fmt, fmt);
      input.setFormatterFactory(fmtFactory);

      BigDecimal bigValue = (BigDecimal) input.getValue();
      System.out.println(bigValue);

      frame.add(input, BorderLayout.NORTH);

      frame.add(new JTextField(), BorderLayout.SOUTH);
      frame.setSize(250, 100);/*from w ww  . j av  a  2 s  .c  om*/
      frame.setVisible(true);
   }
}