Transcript Introduction

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About This Course
9-Apr-16
CIT597
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The formal title of this course is “Programming
Languages & Techniques III”
A better title would be “Web technologies”
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Some of these technologies are specific to Java
Most of the technologies are language-independent
This course, however, uses Java
Prerequisite: CIT594 or equivalent proficiency in Java
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Translation: you had better already be a pretty good Java
programmer!
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“The network is the computer”
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The explosive growth of the Web has greatly changed
the face of computing
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Before, we wrote programs under these assumptions:
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We could use whatever language was convenient
We could write programs for the computer we happened to have
available at the moment
We could design our own data formats and database schema
We did not have to interact with the rest of the world
Today, all of these assumptions are wrong!
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Sun’s slogan, “The network is the computer,” is becoming true
Platform independence is no longer a luxury, but a necessity
There is a large and growing need for information interchange
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Platform independence
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The Internet has become extremely popular
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It connects millions of computers together
These computers run all kinds of programs, with all kinds of
operating systems
Interoperability of programs and data has become a serious
issue
There are two possible solutions:
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Microsoft’s preferred solution: Force everyone to use Windows
 Much of Microsoft’s software is designed with this end in mind
 If this happens, it will not happen quickly
Develop platform-independent languages and systems
 This is what all the other software developers (including Sun
Microsystems, the creator of Java) are working on
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Java, HTML, XML, etc.
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Java is the most platform-independent language we have
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HTML is not as feature-rich as MS Word, but it nevertheless does
a pretty good job
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We will look at ways to process XML from Java
SQL is the most widely accepted database language
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HTML is the language of the Web
Most software documentation these days is distributed in HTML, PDF
(Adobe’s Portable Document Format), or plain text
We will look at ways to create HTML from Java
XML is a platform-independent way of describing data
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This is one of the reasons for its popularity (there are many others)
We will look at ways to access SQL databases from Java
Client-server architecture is used to communicate across the Web
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We will look at creating server-side and client-side applications
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Some technologies we may cover
HTML
HTML Forms
JavaScript
XHTML & CSS
Ajax
XML
DTD
XML Schemas
RELAX NG
Java
servlets
JSP
Perl
PHP
Java
SAX
DOM
JAXP
Java
Java
JDBC
But underneath...
HTTP
TCP/IP
maybe RMI
Sockets
SQL
Apache
Tomcat
XSL
XSLT
XPath
CSS
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Software
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We will be using Java, JUnit, Eclipse, Tomcat, and
MySQL
Most of this software is on the CD that comes with the
textbook
Newer versions are freely available on the Web
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An early assignment will be to install this software and keep a
log of any problems and solutions you encounter
I avoid proprietary (Windows-only) software
I can’t provide a lot of help with installation
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Textbook
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Our textbook this semester is Murach’s Java
Servlets & JSP
Additional instructional material is on the Web
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The Web is full of great (and some not-so-great) tutorials
and specifications
In some cases, I will provide links to additional online
tutorials
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If you find better links, please let me know!
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Assignments
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We will have approximately one assignment per week
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Assignments will frequently build on previous assignments
Assignments may say something like, “plus five features not
covered in class”
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This is to make sure you explore the resources available to you
Note: To make it practical to grade your assignments, it is your
responsibility to point out these extra features
Appearance and content will be factors in grading
Late policy: 10% off for each day late
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Assignments will be due by midnight
If within an hour (before 1 a.m.), the penalty will only be 5%
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Examinations
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We will have a short quiz approximately every two weeks
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Quizzes will be announced in advance (at least on the web site)
Quizzes will concentrate on recently covered material, but may include
earlier material if appropriate
Quizzes may include material that was not covered in class
If we have at least six quizzes, your lowest quiz grade will be dropped
There will be no final exam
Assignments and examinations will be weighted as follows:
50% assignments, 50% quizzes
Grades will be curved: 90% (or any other number) is not
necessarily an A
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Extra credit
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I will not, in general, provide specific extra credit assignments
Small amounts of extra credit will be given for helping to
improve this class; for example:
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Finding new Web sites that I think are really useful (just finding relevant
Web sites is easy; there are thousands)
Pointing out serious problems in my assignments (early enough to help
others!)
I may allow significant extra credit for a project of your own
devising, if you first get me to agree and then do a good job on it
Extra credit will be used to adjust grades upward, after they have
been calculated for the entire class
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Rules
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You may:
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You may not:
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share code with anyone but your assigned partner (if any)
copy another’s code, or allow your code to be copied
lend your code to someone else, or leave it lying around where
someone else may copy it
use any code from textbooks or the Web without my permission
Penalty for first offense:
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discuss the assignments with one another
help others debug their work
use, without attribution, anything I post to the Web
You will be reported to the Office of Student Conduct
You will receive an F in the course
If you think you may have accidentally broken a rule, come
and talk to me about it
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The End
“I know Karate, Kung Fu, and 47 other
dangerous words.”
--Source unknown
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