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raam
Guest
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 Posted: Thu Mar 30, 2006 2:12 pm Post subject: Timer as an inner class |
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Hi all,
I am trying to use a timer to make a label blink in a frame.I am adding
a class inside the frame for this purpose.But whe i compile it says '
<identifier > expected at the line
timer.schedule( <-here task,period);
I hve given the code below.Can anyone please help.
Raam
Code:
class Tmier {
int delay = 5000; // delay for 5 sec.
int period = 1000; // repeat every sec.
java.util.Timer timer = new java.util.Timer();
class task extends TimerTask{
public void run() {
if(LQ.getForeground().equals(Color.RED))
LQ.setForeground(LQ.getBackground());
else
LQ.setForeground(Color.RED);
repaint();
}
}
timer.schedule(task,period);
}//Inner class Timer |
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Allan M. Bruce
Guest
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| Posted: Thu Mar 30, 2006 2:12 pm Post subject: Re: Timer as an inner class |
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"raam" <muthuramantripura (AT) gmail (DOT) com> wrote in message
news:1143725960.805662.128380 (AT) u72g2000cwu (DOT) googlegroups.com...
| Quote: | Hi all,
I am trying to use a timer to make a label blink in a frame.I am adding
a class inside the frame for this purpose.But whe i compile it says '
identifier > expected at the line
timer.schedule( <-here task,period);
I hve given the code below.Can anyone please help.
Raam
Code:
class Tmier {
int delay = 5000; // delay for 5 sec.
int period = 1000; // repeat every sec.
java.util.Timer timer = new java.util.Timer();
class task extends TimerTask{
public void run() {
if(LQ.getForeground().equals(Color.RED))
LQ.setForeground(LQ.getBackground());
else
LQ.setForeground(Color.RED);
repaint();
}
}
timer.schedule(task,period);
}//Inner class Timer
|
I suggest using something like this instead:
javax.swing.Timer myTimer = new javax.swing.Timer(period, new
ActionListener()
{
public void actionPerformed(ActionEvent xiEvent)
{
// do your things in here
}
});
myTimer.setInitialDelay(delay);
myTimer.start();
HTH
Allan |
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raam
Guest
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| Posted: Thu Mar 30, 2006 2:12 pm Post subject: Re: Timer as an inner class |
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Hi all ,
I made a silly mistake in the program and posted a question.Sorry .
Raam. |
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raam
Guest
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| Posted: Thu Mar 30, 2006 3:12 pm Post subject: Re: Timer as an inner class |
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| Thank you sir |
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Chris Smith
Guest
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| Posted: Mon Apr 03, 2006 12:12 am Post subject: Re: Timer as an inner class |
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Allan M. Bruce <allanmb (AT) TAKEAWAYdsl (DOT) pipex.com> wrote:
| Quote: | I suggest using something like this instead:
javax.swing.Timer myTimer = new javax.swing.Timer(period, new
ActionListener()
{
public void actionPerformed(ActionEvent xiEvent)
{
// do your things in here
}
});
myTimer.setInitialDelay(delay);
myTimer.start();
|
To expand upon that for posterity's sake, the reason that a
javax.swing.Timer is preferred here is that event notifications will
then be delivered in the AWT event dispatch thread. If LQ is a GUI
component, then the result of modifying its properties from an arbitrary
thread after it is displayed on the screen are undefined. The necessary
threading could also have been achieved by using EventQueue.invokeLater
from a TimerTask with java.util.Timer, but it would have been a pain and
more difficult to read.
--
www.designacourse.com
The Easiest Way To Train Anyone... Anywhere.
Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation |
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