package test.gui;
 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class TextFieldLength  
{
  public JFrame jf = new JFrame("JFrame");
  public Frame f = new Frame ("Frame");
  
  public TextField tf;
  public JTextField jtf;
  
  public JButton jb = new JButton("Validate");
  
  TextFieldLength ()
  {
    jf.setVisible (true);
    jf.setSize (500, 200);
    jf.setLocation ( 0, 0);
    jtf = new JTextField (10);               
    jf.getContentPane ().add (jtf, BorderLayout.CENTER);
    
    jb.addActionListener (new CustomActionListener ());
    jf.getContentPane ().add (jb, BorderLayout.EAST);
    jf.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
    
    f.setVisible (true);
    f.setSize (300, 300);
    f.setLocation (500, 200);
    tf = new TextField (10);    
    f.add (tf, BorderLayout.CENTER);    
  }
 
/** 
  *
  */
  public static void main (String[] args)
  {
    new TextFieldLength();
  }
 
  class CustomActionListener
    implements ActionListener
  {
    public void actionPerformed (ActionEvent anActionEvent)
    {
      System.out.println ("Button pushed");
      System.out.println ("There is " + jtf.getDocument ().getLength () + " character");
    }
  }
}