Saturday, 28 March 2009

HTML and CSS basis [video]

http://css-tricks.com/video-screencasts/58-html-css-the-very-basics/

Sunday, 22 March 2009

Using javascript to display RSS

Javascript to parse RSS
Simple AJAX style example
Using javascript library

Using java to retrive and display RSS

Basic method to retrieve RSS content
Another widely used method to retrieve RSS content by TAG

The RSS example

Monday, 9 February 2009

Advanced Thread Programming: Synchronization

import java.util.*;

public class Que {

/**
* @param args
*/
public static void main(String[] args) {

mapQ q = new mapQ();

new genQ(q);
new conQ(q);
}
}

////////////////// the commodity Queue /////////////////
class mapQ {

String s;
LinkedList que = new LinkedList();

synchronized void put(String s) {

if (que.size()>10)
try {
wait();
}
catch(InterruptedException e) {
System.out.println("InterruptedException caught");
}
que.addLast(s);
System.out.println("Put: " + s);
notify();
}

synchronized String get() {

if (que.isEmpty())
try {
wait();
}
catch (InterruptedException e) {
System.out.println("InterruptedException caught");
}
String temps = (String) que.removeFirst();
//System.out.println(que);
System.out.println("Got: " + temps);
notify();

return temps;
}
}

//////////////// producer /////////////////////
class genQ implements Runnable {
mapQ q;

genQ(mapQ q) {
this.q=q;
new Thread(this, "Producer").start();
}
public void run() {
int i=0;

while(true) {
int tempi = i++;
q.put(Integer.toString(tempi));
}
}
}

/////////////// consumer ///////////////////////
class conQ implements Runnable {
mapQ q;

conQ(mapQ q) {
this.q=q;
new Thread(this, "Consumer").start();
}

public void run() {
while(true) {
q.get();
}
}
}

Sunday, 1 February 2009

Thursday, 29 January 2009

Jython and Matlab do jobs for java

Java codes:
======================
import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class MyExample
implements ActionListener {

public void actionPerformed(ActionEvent e) {
System.out.println("Ouch!");
}

public static void main(String[] args) {
JFrame frame = new JFrame("My Frame");
frame.setSize(300,300);
JButton button = new JButton("Push Me!");
ActionListener listener = new MyExample();
button.addActionListener(listener);
frame.getContentPane().add(button);
frame.setVisible(true);
}
}


Jython:
======================
import javax.swing as swing

def printMessage(event):
print "Ouch!"

frame=swing.JFrame("my frame")
frame.setSize(300,300)
button=swing.JButton("Push Me!")
button.actionPerformed=printMessage
frame.getContentPane().add(button)
frame.setVisible(True) #frame.visible=1


Matlab:
=======================
import javax.*;

frame = swing.JFrame('my frame');
frame.setSize(300,300);
button = swing.JButton('Push Me!');

set(button,'ActionPerformedCallback',@printMessage);

frame.getContentPane.add(button);
frame.setVisible(true);

%code for sub function:
function printMessage(handle,event)
disp('ouch');
end