package javatesttimer;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.SwingWorker;
/**
*
* @web http://java-buddy.blogspot.com/
*/
public class JavaTestTimer {
static int counter = 0;
static JFrameWin jFrameWindow;
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(runJFrameLater);
}
static Runnable runJFrameLater = new Runnable() {
@Override
public void run() {
jFrameWindow = new JFrameWin();
jFrameWindow.setVisible(true);
}
};
public static class JFrameWin extends JFrame{
JLabel label;
public JFrameWin(){
this.setTitle("java-buddy.blogspot.com");
this.setSize(300, 200);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
label = new JLabel();
label.setText("un-initialized!");
JButton buttonStart = new JButton("Start SwingWorker");
buttonStart.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
new MySwingWorker(label).execute();
}
});
Box verticalBox = Box.createVerticalBox();
verticalBox.add(buttonStart);
verticalBox.add(label);
this.add(verticalBox);
}
public void setLabel(String l){
label.setText(l);
}
}
public static class MySwingWorker extends SwingWorker<String, Integer>{
private JLabel workerLabel;
//Constructor
public MySwingWorker(JLabel workerLabel) {
this.workerLabel = workerLabel;
}
//in background thread
@Override
protected String doInBackground() throws Exception {
for(int i = 0; i < 10; i++){
publish(i);
Thread.sleep(1000); //Perform long-time job
}
return "DONE";
}
//in EDT
@Override
protected void process(List<Integer> chunks) {
for(Integer chunk : chunks){
workerLabel.setText(String.valueOf(chunk));
}
}
//in EDT
@Override
protected void done() {
try {
workerLabel.setText(get());
} catch (InterruptedException ex) {
Logger.getLogger(JavaTestTimer.class.getName()).log(Level.SEVERE, null, ex);
} catch (ExecutionException ex) {
Logger.getLogger(JavaTestTimer.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
Related:
- javax.swing.Timer and java.util.Timer
