import java.util.prefs.*;
import java.util.concurrent.LinkedBlockingQueue;
import javax.swing.plaf.basic.*;
import java.util.prefs.*;
import java.util.concurrent.LinkedBlockingQueue;
import javax.swing.plaf.basic.*;
look_and_feel_value = new JComboBox(look_and_feels);
DelegatingRenderer.install(look_and_feel_value);
look_and_feel_value = new JComboBox(look_and_feels);
DelegatingRenderer.install(look_and_feel_value);
manage_bluetooth = new JButton("Manage Bluetooth");
manage_bluetooth.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
manage_bluetooth = new JButton("Manage Bluetooth");
manage_bluetooth.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {