import javax.imageio.*;
import java.awt.image.*;
import java.awt.event.*;
import java.awt.*;
import java.security.spec.*;
import java.security.*;
import java.lang.management.*;
import java.lang.ref.*;
import java.lang.reflect.*;
import java.net.*;
import java.io.*;
import javax.swing.table.*;
import javax.swing.text.*;
import javax.swing.event.*;
import javax.swing.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.*;
import java.util.regex.*;
import java.util.List;
import java.util.zip.*;
import java.util.*;


public class main {
  public static void main(String[] args) throws Exception {
    SwingUtilities.invokeLater(new Runnable() {
public void run() {
try {

      Component focused = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
      if (focused instanceof JTextField)
        print("Focused text field: " + focused);
      else if (focused != null)
        print("Focused other object: " + focused);
      else
        print("No focused object.");
      
      /*
      L<JTextField> l = allSwingComponentsOfType(JTextField.class);
      print(l.size() + " text field(s) found.");
      
      for (JTextField tf : l)
        if (tf.isFocused...()) {
        }
      */
    } catch (Exception _e) {
  throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } }
});
  }

static StringBuffer print_log = new StringBuffer();

static void print() {
  print("");
}

static void print(Object o) {
  String s = String.valueOf(o) + "\n";
  print_log.append(s);
  System.out.print(s);
}

static void print(long l) {
  print(String.valueOf(l));
}

static int l(Object[] array) {
  return array == null ? 0 : array.length;
}

static int l(List list) {
  return list == null ? 0 : list.size();
}

static int l(String s) {
  return s == null ? 0 : s.length();
} 
}