Monday, Jan 6, 2003Kate Gregory with material from Deitel and Deitel CO 204 Object Oriented...

Monday, Jan 6, 2003 Kate Gregorywith material from Deitel and Deitel

CO 204

Object Oriented Programming

2003

Trent University

Kate Gregory


Agenda

• About Me

• Administrivia

• Overview

• Intro to C++


Class Times

• 3:00 – 5:00 Lecture– Usually break around 4:00 for 10-15 minutes

• 5:00 – 5:50 Tutorial– Less formal, more one-on-one

– Save non-urgent questions for this hour


Web Site

• www.gregcons.com/204• Lecture PowerPoints

– Usually available before class

• Companion Word and Excel documents– Assignments, handouts– Please email me if you need HTML versions of these

• Announcements of test dates and other information of interest

• Reminder of my phone numbers and email


Administrivia

• Text: Harvey M. Deitel, Paul J. Deitel. C++ How to Program, 3rd Edition.

• Office Hours : Before and after class and by appointment downtown

• Web Support : www.gregcons.com/204• [email protected] anytime• Grading Scheme: 7 Labs – 35%, Midterm –

25%, Final – 40%


Date Week Topic Chapter Hand Out Due Back Test6-Jan-03 1 Administrivia / Overview / Intro to C++ 1

13-Jan-03 2 Control Structures, Functions 2,3 Lab 120-Jan-03 3 Arrays, Pointers, Strings 4,5 Lab 2 Lab 1 5%27-Jan-03 4 Classes, Data Abstraction 6 Lab 2 5%3-Feb-03 5 More on Classes 7 Lab 3

10-Feb-03 6 Operator Overloading 8 Lab 4 Lab 3 5%17-Feb-03 Reading Break24-Feb-03 7 Inheritance 9 Lab 4 5% Midterm 25%3-Mar-03 8 Virtual Functions and Polymorphism 10 Lab 5

10-Mar-03 9 Stream IO 11 Lab 6 Lab 5 5%17-Mar-03 10 Templates 12,13 Lab 7 Lab 6 5%24-Mar-03 11 Exceptions31-Mar-03 12 File IO 14 Lab 7 5%

??? Exam Final 40%

Course Schedule


Labs and Assignments

• 7 Labs, each worth 5%

• Typically each will be drawn from end-of-chapter exercises in text

• One lab may cover several weeks of material

• Each is due one week after it is handed out

• Late penalties HURT


Marking Labs

• A working program does not mean a perfect mark

• Comment your code meaningfully• Make sure your code solves the problem

you were given• Hand in whatever “extras” are requested

such as problem statement, sample output• Some marks are allotted for test techniques


Overview – Topics Covered

• Introduction to C++• Control Structures• Functions• Arrays• Pointers• Strings• Classes• Data Abstraction

• Operator Overloading• Inheritance• Virtual Functions• Polymorphism• Stream IO• Templates• Exceptions• File IO


Design vs Coding

• You will learn how to code a feature, such as inheritance

• You will not learn how to decide whether a system should use the feature

• Design is CO 362• Most paid programmers start as coders and are

allowed to design later• You will learn the benefits and advantages of

these language features.


History: C

• Evolved by Ritchie from two previous programming languages, BCPL and B– Used to develop UNIX– Used to write modern operating systems– Hardware independent (portable)– By late 1970's C had evolved to "Traditional C"

• Standardization– Many slight variations of C existed, and were incompatible– Committee formed to create a "unambiguous, machine-

independent" definition– Standard created in 1989, updated in 1999


History: C++

• Superset of C developed by Bjarne Stroustrup at Bell Labs

• "Spruces up" C, and provides object-oriented capabilities

• Object-oriented design very powerful– 10 to 100 fold increase in productivity

• Dominant language in industry and academia


Files in C++

• foo.cpp – source code• foo.h – header file

– Typically .h files are included into source files

• Source files are each compiled into obj files• Several obj files are linked into an exe

– Sometimes a lib file is linked in also

• The exe can be executed, or run• Extensions and naming conventions may vary


Important times

• Compile Time• Link Time• Run Time

• When is something known?• When does an error happen?• When is a decision made?


C++ Gotchas

• Case Sensitive: if and IF are different• You must declare variables• You must initialize variables• Ignores line breaks: you must mark ends of lines

with ;• Compiler does not read indents• Brace brackets {} are sometimes optional: use

them anyway


Strongly Typed

• All variables in C++ have a type– int,char, float, etc

int i = 3.4;

float f = “Hello”;

• The compiler is your friend


The main() function

• This is what the operating system runs:

// Everybody’s first program

#include <iostream.h>

int main()

{

cout << "Hello, Trent!" ;

return 0;

}


Learning Already

• Function• { }

– Indenting styles

• #include• cout <<• return

• Historical allusions: Unix, foo, Hello World


For Next class

• Read Chapters 1, 2, and 3 of text

• Ensure you know how to use the C++ compiler in the lab or on your own computer (the text comes with a copy of Visual C++.)

Monday, Jan 6, 2003Kate Gregory with material from Deitel and Deitel CO 204 Object Oriented...

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