Thread sleep question

Let me just update my post.

This is what I want.

1) Enter some text into JTextField

2) Press 'Enter' from JTextField

3) Show in JLabel some text

3) Stop (pause) for 1 seconds (Thread.sleep(1000))

4) Continue program

Now, JTextField has KeyListener with keyPressed method for ENTER key and when ENTER is pressed from keyPressed another method in another class is called. In that another class is code that show text in JLabel and after is Thread.sleep(1000) command. But that doesn't happened, it always shows text in JLabel after Thread.sleep command.

Why, how to fix that?

BobMila at 2007-7-12 15:23:53 >

> I am sure you are interrupting the AWT Event

> Dispatcher Thread.

> You should NEVER interrupt this thread with a

> Thread.sleep since you can have undesired effects

> like the one that happens to you.

> The better solution is to make the wait in another

> thread.

How do you mean to make wait in another thread?

Explain it.

BobMila at 2007-7-12 15:23:53 >

Any activity that takes more than a fraction of a second in a GUI environment (like an applet) needs to be run in a background thread.

You need to create an object which implements Runnable, then create a Thread object pointing to that runnable.

Then you call start() on the thread to set it going. start() returns immediately, but at the same time the run() method of the Runnable object starts executing in parallel.

You'll often use an anonymous class as in:

Runnable threadCode = new Runnable() {

public void run() {

... code which runs in background

}

};

Thread t = new Thread(threadCode);

t.start();

malcolmmca at 2007-7-12 15:23:53 >

Let me just post this idea.

I have created a class Pause for pausing.

It is:

import java.util.Date;

public class Pause {

Pause(int seconds){

int timeSec;

Date dt = new Date();

int sec = dt.getSeconds();

do{

timeSec = dt.getSeconds();

}while(timeSec-sec<seconds);

}

}

In code it would be called:

Pause p = new Pause(2);

if I want 2 seconds pause.

But, this doesn't work.

Variable timeSec never changes even though it should because it checks seconds, but getSeconds() always returns same integer.

Any clue why is that happening?>

BobMila at 2007-7-21 21:34:02 >

You could have a timer that invokes the ActionListener:

public void actionPerformed(ActionEvent evt) {

continueNormally();

}

I'm assuming the timer's setRepeats is false.

Hippolytea at 2007-7-21 21:34:02 >