Thread problem on windows xp

Question

Hi, all
I have thread code looks like below. Under linux, I will see 'thread offline!' message when invoke offline method in myTask class. Under windows xp, I didn't see any output message. Does this mean thead still alive? Is it ok to controll a thread using code below? Why I got different result on these 2 platform?
Thanks,
Vincent Chen
--- Main.java ---
myTask task=new myTask();
new Thread(task).start();
<my code here>
task.offline();
--- myTask.java ---
public class myTask extends Observable implements Runnable {
boolean online;
public myTask() {
online=true;
public void run() {
while (online) {
<my code here>
System.out.println("thread offline!");
public void offline() {
online=false;
}

Answer 1

Append System.out.flush() right after println. This
will make sure that text actually reaches console. I
find it necessary on windows.flush should not be required after a println. Would the OP please follow-up whether it fixed the problem?