CS 2124 — Object Oriented Programming

Code Samples

Introduction / Review

• Reading in a file
• How NOT to read a file. The code shows the a common error in writing a loop to read a file. payroll.txt is a sample input file to run the program on. Can you modify the program so that it works properly? Don't change the input file.
• Default Arguments
• Outline of a menu-driven application
• Mixing the input operator and getline

Vectors

• Reading a file into a vector
• Vector of objects that contain vectors .

String Streams

• String stream examples

Pointers

• Addresses, pointer variables and pointer arithmetic.
• "Association" - spouse pointers.
• Reading a file into a vector of pointers to objects on the heap

Class Basics

• The simplest class
• A simple Date class
• A Person with a birthday and a spouse (composition and association)
• Vector of objects. How do you fill a vector of objects? Here's a sample input file for the program: cars.txt

Inheritance

• Basic Inheritance
• Order of Constructors and Destructors using Inheritance
• Polymorphism
• Abstract Classes
• Multiple Inheritance

Separate Compilation / Namespaces

• A simple date class using separate compilation: Date.h, Date.cpp and testDate.cpp
• Same date class, but with the added feature a its own namespace: Date.h, Date.cpp and testDate.cpp

Operator Overloading

• Overloading Operators: Date.h, Date.cpp and testDate.cpp.
• Overloading arithmetic operators: Complex.h, Complex.cpp and testComplex.cpp
• The start of a vector class: SquareBrackets.cpp

Copy Control and the Big 3

• Demonstration of need for copy constructor: testDoNothing.cpp
• The big 3 using a vector class: Vector.h, Vector.cpp and testVector.cpp
• Dynamic Arrays
• "Expanding" a dynamic array

Linked Lists

• A simple linked list toolkit with functions for displaying, adding and removing items, and finding the length of the list.
• Mostly the same toolkit, however some it uses a Node constructor with default arguments to simplify some of the functions. A few other short cuts are also used. Separate compilation.: Node.h, Node.cpp and testLinkedList.cpp.
• Linked list toolkit using a templated Node class: Node.h (will not be covered in Spring 2007)

Recursion

• Some recursive functions
• Some recursive functions with c-strings
• Binary Search
• Some linked list toolkit functions using recursion
• Two-way recursive functions.

STL

• STL
• Another STL example. Some overlap with first one.

Templates

• A template function: maximum.h
• Tempated vector class: Vector.h and a test program testVector.cpp. Notes on how the conversion was done. (not covered)

Exceptions

• Exception examples

Other possibly useful items

• Passing Arrays to a function
• Array of struct objects which contain arrays. Sample input file: dogs.txt
• Array of objects. How do you call methods on objects in an array? What constructor is called when you create an array of objects?
• Pointers and arrays of objects including dynamic arrays of pointers to objects.

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Maintained by John Sterling (jsterling@poly.edu). Last updated January 23, 2011