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POAWT event thread interruption
 

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    <p>I have code:</p> <pre><code>import java.awt.Dimension; import java.util.Observable; import java.util.Observer; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.SwingUtilities; public class Test2 { JFrame frame = null; JPanel panel = null; JButton button = null; Task task = null; Indicator indicator = null; Runnable computation; public static void main(String[] args) { new Test2().start(); } public void start() { SwingUtilities.invokeLater(new Dialog()); } private void process1() { int result = 0; for (int i=0; i&lt;100000; i++) { result = (int) Math.ceil(++result + Math.sqrt(result)); System.out.println("proc1 " + result); } } private void process2() { int result = 0; for (int i=0; i&lt;100000; i++) { result = (int) Math.ceil(++result + Math.sqrt(result)*500); System.out.println("proc2 " + result); } } private class Computation implements Runnable { public void run() { process1(); task.setProgress(2); process2(); task.setProgress(3); } } private class Dialog implements Runnable { public Dialog() { } public void run() { frame = new JFrame("Test"); panel = new JPanel(); panel.setPreferredSize(new Dimension(300, 200)); frame.getContentPane().add(panel); button = new JButton("b1"); panel.add(button); indicator = new Indicator(); task = new Task(); task.addObserver(indicator); frame.pack(); frame.setVisible(true); computation = new Computation(); SwingUtilities.invokeLater(computation); } } private class Task extends Observable { int progress; public Task() { } public void setProgress(int progress) { this.progress = progress; setChanged(); notifyObservers(); } public int getProgress() { return progress; } } private class Indicator implements Observer { @Override public void update(Observable arg0, Object arg1) { button.setText(((Task)arg0).getProgress()+""); } } } </code></pre> <p>So I have two time-consuming operations (process1 and process2). My aim is after process1 is complete, update swing-button (see task.setProgress method).</p> <p>Problem consists in that update is performed after process1() and process2() are completed.</p>
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