Main.java Source code

Introduction

Here is the source code for Main.java

Source

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();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel p = new JPanel();
        p.setOpaque(true);
        p.setLayout(new FlowLayout());
        p.add(good);

        f.add(p, BorderLayout.CENTER);
        f.add(resultLabel, BorderLayout.SOUTH);
        good.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent ev) {
                resultLabel.setText("Working . . .");
                good.setEnabled(false);
                Thread worker = new Thread() {
                    public void run() {
                        try {
                            Thread.sleep(5000);
                        } catch (InterruptedException ex) {
                        }
                        SwingUtilities.invokeLater(new Runnable() {
                            public void run() {
                                resultLabel.setText("Ready");
                                good.setEnabled(true);
                            }
                        });
                    }
                };
                worker.start(); // So we don't hold up the dispatch thread.
            }
        });
        f.setSize(300, 100);
        f.setVisible(true);
    }
}