Re: How to Refresh the System Resources Data like amount of Free Memory.

vijju wrote:


Here is a simple example of using javax.swing.Timer to update a JLabel.

package com.knutejohnson.components;

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

public class JTimeLabel extends JLabel implements ActionListener {
     private SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
     private javax.swing.Timer timer = new javax.swing.Timer(250,this);

     public JTimeLabel() {
         super();
         timer.start();
     }

     public JTimeLabel(String text) {
         super(text);
         timer.start();
     }

     public JTimeLabel(String text, int horizontalAlignment) {
         super(text,horizontalAlignment);
         timer.start();
     }

     public JTimeLabel(String text, int horizontalAlignment, String
pattern) {
         super(text, horizontalAlignment);
         this.sdf = new SimpleDateFormat(pattern);
         timer.start();
     }

     public void actionPerformed(ActionEvent ae) {
         setText(sdf.format(new Date()));
     }

     public static void main(String[] args) {
         JFrame f = new JFrame();
         f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         f.add(new JTimeLabel("24:00:00",JLabel.CENTER));
         f.pack();
         f.setVisible(true);
     }
}

--

Knute Johnson
email s/nospam/knute/