But first ...

• Major Project proposals due today - post in WebBoard
• major project timeline

.

.

.

.

Highly interactive web pages: Javascript and Java applets

• Javascript
• Java

.

.

.

.

Javascript

• What is Javascript?
• Javascript prompters

.

.

.

.

Java applets: highly interactive learning environments

• applet: a little application
• Java illusion example

• <APPLET CODEBASE="classes/" WIDTH=400 HEIGHT=250
          CODE="Illusion"
          ARCHIVE="Illusion.zip">
  

• Java source

• Color additive mixing applet
• Color absorption mixing applet
• Chemistry titration applet

• Visible Human viewer applet

.

.

.

.

Object Oriented Programming (OOP)

• program components (objects)
• "black box" functional definition (can be used without knowing what's inside)
• message sending; message receiving
• can assemble a larger application from object-oriented components

.

.

.

.

How to get a Java applet you want

• Find one that does what you want
• Write one (ie. learn Java and become a programmer)
• Assemble one from Java objects that others have written (learn "just-enough" Java to be able to draw upon existing Java classes to construct an applet you need)
• Get someone else to write one for you

.

.

.

.

Finding Java applets

• Educational Object Economy site
• Gamelan

.

.

.

.

Learning Java

• web sites
• Buy a book ("Learn Java in 21 days" - 21 weeks? - 21 years?)

.

.

.

.

Get someone to write it for you

• Jim Peterson's project

.

.

.

.

For next week

• Feedback on your major project
• Digitial video in instruction