Re: Coordinating multiple JTextField updates across panels

John B. Matthews wrote:


Here's an SSCCE with a thousand JTextFields being updated. I see his
problem on my computer. A really fast computer might not.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class test extends JFrame implements Runnable {
     JTextField[] fields = new JTextField[1000];
     int n;

     public test() {
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         setLayout(new GridLayout(25,40));

         for (int i=0; i<fields.length; i++) {
             fields[i] = new JTextField("000");
             add(fields[i]);
         }

         pack();
         setVisible(true);
     }

     public void run() {
         while (true) {
             for (int i=0; i<fields.length; i++)
                 fields[i].setText(Integer.toString(n));
             ++n;
             try {
                 Thread.sleep(1000);
             } catch (InterruptedException ie) {
                 ie.printStackTrace();
             }
         }
     }

     public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 test t = new test();
                 new Thread(t).start();
             }
         });
     }
}

--

Knute Johnson
email s/nospam/knute2009/

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