Re: got a problem with jtextfiled..

From:

hiwa <cardinal_ring@yahoo.co.jp>

Newsgroups:

comp.lang.java.help

Date:

Sun, 25 Nov 2007 02:16:30 -0800 (PST)

Message-ID:

<4b404ccc-07a8-4109-9b2d-3e43fd28f986@e10g2000prf.googlegroups.com>

On Nov 25, 4:23 pm, jlc488 <jlc...@gmail.com> wrote:

On 11=BF=F925=C0=CF, =BF=C0=C8=C42=BD=C331=BA=D0, Lew <l...@lewscanon.com>=

wrote:

hiwa wrote:

On Nov 25, 1:34 pm, jlc488 <jlc...@gmail.com> wrote:

let's say....i have a jtextfiled ....

JTextField txtNo = new JTextField();

for( int i =0; i<100000; i++){
//Thread.sleep(100);
txtNo.setText(i+"");

}

when i'm running it....i want to see the number increasing...but all =

see is...the last result of 99999

it just hangs a while and suddenly appears the last number only...

i want to see flicking..is there anyway????

thanks for reading....

Seehttp://java.sun.com/docs/books/tutorial/uiswing/concurrency/index.h=

tml

Swing runs in a single thread

called the "Event Dispatch Thread", or EDT,

in which you do a long task that prevents Swing to run.

And if you apply changes from a different thread it might not update vis=

ibly

in the EDT. The link hiwa gave will give you a beginning.

<http://mindprod.com/jgloss/swing.html>
is another good source of information.

--
Lew- =B5=FB=BF =C5=D8=BD=BA=C6=AE =BC=FB=B1=E2=B1=E2 -

- =B5=FB=BF =C5=D8=BD=BA=C6=AE =BA=B8=B1=E2 -

i'm not quite understanding..with edt...

i've tried with AWT...this setText is good....

it shows what i want to see...but why not in Swing??

and is there any sample code you can show to me??

thanks..a lot

Wa, wa, wa, wait! Some of JTextComponent methods are thread safe. Your
original code should run normally as is. Try this:
------------------------------------------
import java.awt.*;
import javax.swing.*;

public class SwingTf{

  public static void main(String[] args) throws Exception{

    JFrame frame = new JFrame();
    JTextField tf = new JTextField(30);
    frame.getContentPane().add(tf, BorderLayout.SOUTH);
    frame.pack();
    frame.setVisible(true);

    for( int i =0; i<100000; i++){
// Thread.sleep(100);
     tf.setText(i + "");
    }
  }
}
------------------------------------------