Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JProgressBar;

public class Main {
    static class BarThread extends Thread {
        private static int DELAY = 500;

        JProgressBar progressBar;

        public BarThread(JProgressBar bar) {
            progressBar = bar;
        }

        public void run() {
            int minimum = progressBar.getMinimum();
            int maximum = progressBar.getMaximum();
            for (int i = minimum; i < maximum; i++) {
                try {
                    int value = progressBar.getValue();
                    progressBar.setValue(value + 1);

                    Thread.sleep(DELAY);
                } catch (InterruptedException ignoredException) {
                }
            }
        }
    }

    public static void main(String args[]) {
        JFrame frame = new JFrame("Stepping Progress");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        final JProgressBar aJProgressBar = new JProgressBar(0, 50);
        aJProgressBar.setStringPainted(true);

        final JButton aJButton = new JButton("Start");

        ActionListener actionListener = new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                aJButton.setEnabled(false);
                Thread stepper = new BarThread(aJProgressBar);
                stepper.start();
            }
        };
        aJButton.addActionListener(actionListener);
        frame.add(aJProgressBar, BorderLayout.NORTH);
        frame.add(aJButton, BorderLayout.SOUTH);
        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}