Java-Buddy

package javatask;
import java.awt.BorderLayout;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import static javax.swing.SwingConstants.HORIZONTAL;
import javax.swing.SwingUtilities;
/**
 * @web http://java-buddy.blogspot.com/
 */
public class JavaTask extends JFrame
 implements ActionListener {
 Label labelInfo;
 JButton buttonRun;
 JProgressBar jProgressBar1;
 
 Timer timer;
 public static void main(String[] args) {
 SwingUtilities.invokeLater(() -> {
 createAndShowGUI();
 });
 }
 private static void createAndShowGUI() {
 JavaTask myTaskFrame = new JavaTask();
 myTaskFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 myTaskFrame.prepareUI();
 myTaskFrame.pack();
 myTaskFrame.setVisible(true);
 }
 private void prepareUI() {
 JPanel vPanel = new JPanel();
 vPanel.setLayout(new BoxLayout(vPanel, BoxLayout.Y_AXIS));
 jProgressBar1 = new JProgressBar(HORIZONTAL, 0, 10);
 vPanel.add(jProgressBar1);
 
 labelInfo = new Label();
 vPanel.add(labelInfo);
 buttonRun = new JButton("Run");
 buttonRun.addActionListener(this);
 getContentPane().add(vPanel, BorderLayout.CENTER);
 getContentPane().add(buttonRun, BorderLayout.PAGE_END);
 }
 @Override
 public void actionPerformed(ActionEvent e) {
 if (e.getSource() == buttonRun) {
 labelInfo.setText("Run button click");
 if(timer != null){
 timer.cancel();
 }
 
 timer = new Timer(); 
 TimerTask timeTask = new TimerTask() {
 
 private int progress = 0;
 private final int max_progress = 10;
 @Override
 public void run() {
 if(progress == max_progress){
 timer.cancel();
 labelInfo.setText("Finished");
 }else{
 progress++;
 labelInfo.setText("progress: " + getProgress());
 jProgressBar1.setValue(getProgress());
 }
 }
 
 int getProgress(){
 return progress;
 }
 };
 
 timer.schedule(timeTask, 1000, 1000);
 }
 }
}

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Remark: In this example, the ui elements are updated in TimerTask run on non-ui thread. If you want to update ui inside, you shoulad using javax.swing.Timer. Read next post: java.util.Timer and javax.swing.Timer.
~ thanks comment by Tomtom.

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