Handle long-running tasks in a Swing application : SwingUtilities « Swing « Java Tutorial

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

public class Main {
  private static JButton good = new JButton("Good");
  private static JLabel resultLabel = new JLabel("Ready", JLabel.CENTER);
  public static void main(String[] args) {
    JFrame f = new JFrame();
    JPanel p = new JPanel();
    p.setLayout(new FlowLayout());

    f.add(p, BorderLayout.CENTER);
    f.add(resultLabel, BorderLayout.SOUTH);
    good.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ev) {
        resultLabel.setText("Working . . .");
        Thread worker = new Thread() {
          public void run() {
            try {
            } catch (InterruptedException ex) {
            SwingUtilities.invokeLater(new Runnable() {
              public void run() {
        worker.start(); // So we don't hold up the dispatch thread.
    f.setSize(300, 100);

14.127.1.Getting the JFrame of a Component
14.127.2.Convert a coordinate relative to a component's bounds to screen coordinates
14.127.3.Convert a coordinate on a screen to a coordinate relative to a component's bounds
14.127.4.Handle long-running tasks in a Swing application
14.127.5.Get the JFrame by getting the root of a component
14.127.6.Positions the specified frame at a relative position in the screen, where 50% is considered to be the center of the screen.
14.127.7.Positions the specified frame in the middle of the screen.
14.127.8.Positions the specified frame at a random location on the screen while ensuring that the
14.127.9.Get Window from a component
14.127.10.Center that window on the given desktop.
14.127.11.Get All Components in a container
14.127.12.Get Point For Centering
14.127.13.Is Within Parent
14.127.14.Show the given frame as modal to the specified owner
14.127.15.Change the sizes of all the passed buttons to be the size of the largest one.
14.127.16.Get Screen Bounds For
14.127.17.Returns the offset of the bracket matching the one at the specified offset of the document