Changing JFrame Text Periodically

[napa1m]

Hi! I've just spent full 4 days on this - to NO avail!!! All I want is a program that waits 1 minute before printing out the number of minutes its been active into a JFrame. IE after the first minute, the JFrame displays 1, after 2, it displays 2, and so on and so forth.

If I call the JFrame's constructor and updateNo methods from a differnt class, it works fine, so I know for a fact that its NOT anything to do with the JFrame. THE JFRAME IS FINE!!!

So, I've been trying to use a Thread, and I can get the program to sleep() for 1 second, but it never displays the JFrame until the program stops looping (ie, if i restrict it to say, 5 minutes), even tho I use setVisible(true), repaint(), etc. If you can get some code that actually WORKS, please post it!!! PLEASE!!! I BEG OF YOU!!!

PLEASE!!! napa1m
hansen@ithsite.com

http://www.reminiscingaaliyah.cjb.net

 

[pedrosolorzano]

import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;


public class Actualizable extends JFrame implements Runnable
{
JLabel time=new JLabel();
JButton button=new JButton("Boton"
Thread t=new Thread(this);
int tiempo=1;

public void run(){
while(true){
try{
t.sleep(100);
time.setText(""+(tiempo++));
repaint();
}catch(InterruptedException e){}
}
}

public Actualizable(){
time.setBounds(10,10,100,20);
button.setBounds(10,40,100,20);
getContentPane().setLayout(null);
getContentPane().add(time);
getContentPane().add(button);
t.start();
}

public static void main(String[] args)
{
Actualizable a=new Actualizable();
a.setBounds(10,10,200,200);
a.show();
}
}



If I understood you well, this code works. I put a button to see if the JFrame responds in the meantime, and it works. Just adjust the sleeptime to 60000 to wait for 1 minute.
But, if you want to show a frame to witness the status of a long task for example, it is more difficult. I had been stuck for a month with a similar problem. Write me if your problem is something like that. (pedro.solorzano@terra.com.co)

Hope it helps-