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Penn CIT 597 - CIT 597 LECTURE NOTES

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<cit597>MCIT PizzaCIT597What this course is aboutPlatform independenceJava, HTML, XML, etc.TechnologiesSoftwareTextbookAssignmentsExaminationsExtra creditRulesThe EndJan 13, 2019<cit597>About This Course2MCIT Pizza6:15 Thursday, Sept. 9Levine 3073CIT597The formal title of this course is “Programming Languages & Techniques III”A better title (this semester, at least) would be “Web technologies”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Translation: you had better already be a pretty good Java programmer!4What this course is aboutThe explosive growth of the Web has greatly changed the face of computingBefore, we wrote programs under these assumptions: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!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 interchange5Platform independenceThe Internet has become extremely popularIt connects millions of computers togetherThese computers run on all kinds of computers, with all kinds of operating systemsInteroperability of programs and data has become a serious issueThere are two possible solutions: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 on6Java, HTML, XML, etc.Java is the most platform-independent language we haveThis is one of the reasons for its popularity (there are many others)HTML is not as feature-rich as MS Word, but it nevertheless does a pretty good job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We will look at ways to process XML from JavaSQL is the most widely accepted database languageWe will look at ways to access SQL databases from JavaClient-server architecture is used to communicate across the WebWe will look at creating server-side and client-side applications7TechnologiesThis semester you will learn a little bit of each of a large number of technologies: HTML, XHTML, XML, XSLT, XPath, SAX, DOM, Servlets, JSP, SQL, JDBC, some others I forgot to listMy goal is simply to get you started with each, and to show you how they are interrelatedThese technologies build upon one another--each topic is not, in general, a new beginningYou don’t have to be an expert in all of them, but you are expected to learn where to find out moreI’m a beginner in most of them, myself8SoftwareAll the software you need is on the WebIf you use your own computer, you need to install this softwareEverything you really need is free (except RAM and disk space!)I avoid proprietary (Windows-only) softwareI can’t provide a lot of help with installation9TextbookOur “textbook” this semester is http://www.w3schools.com/  Additional instructional material is on the WebThe Web is full of great (and some not-so-great) tutorials and specificationsI will provide links to some additional online tutorialsIf you find better links, please let me know!Books still rule, but you don’t need a new book for every new topic we coverLast year I used Advanced JavaTM: Internet Applications by Art GittlemanThis book is good for Java, weak on XML10AssignmentsWe will have approximately one assignment per weekAssignments will frequently build on previous assignmentsAssignments may say something like, “plus five features not covered in class”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Assignments will be due by midnightIf within an hour (before 1 a.m.), the penalty will only be 5%11ExaminationsWe will have a short quiz approximately every two weeks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 A12Extra credit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:Finding new Web sites that I think are really useful (just finding relevant Web sites is easy; there are hundreds or 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 class13RulesYou may:discuss the assignments with one anotherhelp others debug their workuse, without attribution, anything I post to the WebYou may not:work together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: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 it14The End“I know Karate, Kung Fu, and 47


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Penn CIT 597 - CIT 597 LECTURE NOTES

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