Problem with timer in java

[paul]

I would like to time (and display) how long it takes my program to preform a certain task...
Actually, I have already accomplished this but with one issue:

Code:

my timer is displayed in a label 00:00:00

when I start the timer the first second appears like this: 09:00:00
then: 09:00:01
then: 09:00:02
then: 09:00:03
...
...
...

And seems to work fine.

Why is the first second displayed as being 9 hours long? How do I correct this issue?

Code:

    long count = 0;
    private final SimpleDateFormat TIME = new SimpleDateFormat("hh:mm:ss");
    Timer stopWatch = new Timer(1000, new ActionListener(){
        public void actionPerformed(ActionEvent event){
            timerDisplay.setText(TIME.format(new Date(count++ * 1000)));
        }
    });

Thanks.

[Seemster]

If your using EJB's, this would be perfect use of an interceptor.

[Seemster]

public class TestProfiler {
@AroundInvoke
public Object profile(InvocationContext invocation) throws Exception {
long startTime = System.currentTimeMillis();
try {
return invocation.proceed();
} finally {
long endTime = System.currentTimeMillis( ) - startTime;
System.out.println("Method " + invocation.getMethod( )
+ " took " + endTime + " (ms)");
}

}
}

[shanePreater]

This is because you are creating you Date object wrong.

Basically the Date(long time) constructor is expecting the time in millis which is the number of milliseconds since dec 31 1970 (iirc) what you actually want to do is:

Code:

new ActionListener(){
        public void actionPerformed(ActionEvent event){
            Calendar calendar = Calendar.getInstance();
	    calendar.set(Calendar.SECOND, count * 1000);
            timerDisplay.setText(TIME.format(calendar.getTime()));
        }
    });

That should sort you out matey.