wrapup1 CS110 Wrapup Tuesday, May 11, 2004 Announcements –final exam Thursday, May 20, 8:00 AM McCormack, Floor 01, Room 0608 (easier than last exam?!) –wise1 due next tonight –wise due Thursday Wrapup –Course goals –How we met them –Final exam –Where you can go next at UMass in the profession

wrapup2 WISE wise1 due tonight must compile and run minimal functionality acceptable if (whatever) ( if (somethingElse) { // many lines of code that run // off the edge of the pap er }

wrapup3 Learning to program Lots of fun Practical Hard, time consuming Unusual mixture: –sophisticated intellectual content –picky details that must be right Exercise in reading, writing, thinking CS110 is for CS majors, future professionals slide from lecture 1

wrapup4 Teaching/learning style To learn a language well, live in a land where it’s spoken – anxiety producing, but efficient! Learn to write by to reading and writing and writing about what you learn 60% of a lot is more than 100% of a little Ask questions (to slow me down) slide from lecture 1

wrapup5 CS110 goals Learn to think like a programmer by reading and writing programs Learn Java Prepare for life as a CS major Work hard / work productively Have fun Amaze yourself by how much you’ve learned

wrapup6 Teaching philosophy Programming is much more than the details –think about the important ideas –but the details matter: learn syntax too Read more code than you write, write about the code you read and write Work on significant applications: Bank, shapes, Juno, WISE Learn from lots of sources –class, books, net, API, friends Pay as little attention to grades as possible

wrapup7 OOP Think of the (software) world as a bunch of objects communicating with one another Choose a language that supports that view Java –object oriented –portable –fashionable –well designed –right for CS110 and for practical programming

wrapup8 Development Environment: xemacs Arguments for –basis for future work in major and career –easy to set up on a PC –java and javac are visible commands –command line interface (no GUI) Arguments against (for a modern graphical environment instead) –command line interface (no GUI, unintuitive) –old fashioned –no sparkle

wrapup9 Official Java Keywords – sandbolts/_keywords.html abstract, boolean, break, byte, case, catch, char, class, const, continue, default, do, double, else, extends, final, finally, float, for, goto, if, implements, import, instanceof, int, interface, long, native, new, package, private, protected, public, return, short, strictfp, static, super, switch, synchronized, this, throw, throws, transient, try, void, volatile, whilehttp://java.sun.com/docs/books/tutorial/java/nut sandbolts/_keywords.html Other syntactic elements = + - * / \ “” ‘’ ( ) { } [ ] || &&., ; >= <= == % // /* */ /** ? : ! != ; += ++

wrapup10 Vocabulary Java API classes String, TreeMap, Iterator, ArrayList, Integer, Object, Character, File, System, *Reader, *Writer, Math, StringTokenizer, StringBuffer, Date, Exception,... From our applications Bank, *Account, Shape, Screen, Box, *Line, LinearEquation, Juno, Shell, ShellCommand, JFile, Directory, TextFile, User, *Exception, Terminal, WISE*, …

wrapup11 Vocabulary For talking about programs comment, api, message, method, object, class, convention, polymorphism, token, identifier, parse, javadoc, cast, unit test, implementation, inheritance, JVM, getter, overrides, documentation, declaration, scope, parameter, argument, signature, field, variable, error, instance, block, call stack, syntax, semantics, delegate, design, model, compile time, run time,... Study from JOI glossary

wrapup12 Final Exam Structure like the hour exams Mix of easy and hard questions Exam is three hours long but I will try to write one that takes just two Chapters 1-9 of JOI, examples Based on Bank 9, Juno 7 Closed book/notes

wrapup13 Final Exam Some questions will refer to WISE system solution (to be posted) – bring code to class Some perfectly predictable questions –what are the tokens, classes, objects, messages, …? –in which class will you find …? –what does this program/line/method do …? Improve WISE by adding …

wrapup14 Final Exam Write HelloWorld.java or some similarly simple program, from scratch Boxes and arrows Call stack Questions with the answer “It depends … ” Questions that require you to write sensibly about programs and programming

wrapup15 What next? CS210: Data Structures and Algorithms –interfaces (more abstract than abstract classes) –lists, trees, stacks, queues –dynamic data, references, equality, cloning –searching, sorting, parsing, evaluating expressions –efficiency considerations –GUI programming –more Java CS240: Programming in C –procedural programming (not OOP) –memory layout: bits and bytes, pointers, the stack and the heap, debugging –introduction to Unix, particularly tools

wrapup16 What next? CS major –CS210 & CS240, calculus & linear algebra, CS310, CS320, upper level work... Real world –Software development –QA (Quality Assurance = software testing) –IT (Information Technology = business computing infrastructure) –System administration –Technical writing –Web development/maintenance –Customer support –Your own internet startup company

wrapup17 Heaven and Earth There are more things in heaven and earth than are dreamt of in your philosophy. (Shakespeare’s Hamlet) There are more things dreamt of in your philosophy than are in heaven and earth. (Programmers can invent worlds that never were, nor ever could be.)

wrapup18 Thank you I enjoyed this semester Good luck on the exam I learned a lot I hope you can say the same