Using session variables instead of cookies?! Awesome.

I've moved the site over to a new host. LFC Hosting. I've been using them a while for other stuff and have been happy with them. There will be a few issues here and there, but I'll get the kinks worked out soon.

How do we know that recent CO2 increases are due to human activities?

A while ago I talked about a possible project I wanted to try based on a site I saw some years ago. And so here it is.

It is a speech profiler which at the moment allows someone to get word counts, sentence counts, and see visually sentence density. In addition, one can search for certain words and phrases to see occurrence density within that visual representation. Finally, one can compare those numbers and visual representations between multiple speeches.

I plan to at some point add some additional statistic features such as unique word counts, comparisons, and other things as I think of them or get suggestions.

As you can see the Java implementation of Step 1 of 15 Exercises for Learning a new Programming Language was more complicated than the C# implementation. This was largely due to one factor. You can't poll whether someone is typing from the console in Java.

The second problem is that you can't use a KeyEvent handler in the console, which would the second easiest solution to attempt.

Finally a third problem is that by using an event handler you essentially need to use threading so that the loop doesn't interfere with the handler and you are able to interrupt properly.

If there are better solutions I'd be very interested to see them.

package learn2Java1; import java.awt.BorderLayout; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import javax.swing.JFrame; import javax.swing.JTextArea; public class Program extends JFrame implements KeyListener { private JTextArea displayArea; private static final long serialVersionUID = 1; public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater( new Runnable( ){ public void run( ) { createAndShowGUI( ); } }); } public Program( String name ) { super( name ); } private static void createAndShowGUI( ) { Program frame = new Program( "Press ESC to exit program." ); frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); frame.addComponentsToPane( ); frame.pack( ); frame.setVisible( true ); Thread t = new Thread( new MessageLoop( frame ) ); t.start( ); } private void addComponentsToPane( ) { displayArea = new JTextArea( 0 ); displayArea.setEditable( false ); displayArea.addKeyListener( this ); getContentPane( ).add( displayArea, BorderLayout.CENTER ); } public void keyPressed(KeyEvent ke) { checkKey( ke, "KeyPressed: " ); } public void keyReleased(KeyEvent ke) { checkKey( ke, "KeyReleased: " ); } public void keyTyped(KeyEvent ke) { checkKey( ke, "KeyTyped: " ); } private void checkKey( KeyEvent ke, String message ) { System.out.println( message + ke.getKeyCode() ); if ( ke.getID() != KeyEvent.KEY_TYPED && ke.getKeyCode() == KeyEvent.VK_ESCAPE ) System.exit( 0 ); } public void updateArea( String text ) { displayArea.setText( text ); } private static class MessageLoop implements Runnable { Program messageSpace; public MessageLoop( Program thisFrame ) { messageSpace = thisFrame; } public void run( ) { for ( int i = 0; ; i++ ) { messageSpace.updateArea( i + " " ); try { Thread.sleep( 250 ); } catch ( InterruptedException ie ) { } } } } }

1. Display series of numbers (1,2,3,4, 5....etc) in an infinite loop. The program should quit if someone hits a specific key (Say ESCAPE key). using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; namespace lrn2CSharp1 { class Program { static void Main( string[ ] args ) { for ( int i = 0; ; i++ ) { if ( Console.KeyAvailable && keyPressHandler( Console.ReadKey( true ) ) ) break; Console.Write( i + " " ); Thread.Sleep( 250 ); } } protected static Boolean keyPressHandler( ConsoleKeyInfo input ) { if ( input.Key == ConsoleKey.Escape ) return true; return false; } } }

So I saw this page which gives a list of 15 Exercises for Learning a new Programming Language. I thought, this could also be a good way to compare different languages. In that spirit I'm going to do just that and try to complete the list in different popular languages. To start with I will do them in C# and Java.

As it turns out I'm much less familiar with C# than Java so it will also be a learning experience as the original article had intended. You can see the progress in Programming.