CPSC - Object Oriented Programming

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How are objects defined?
- By their attributes
- By operations than can be performed on them
Object
- A real/physical or imaginary thing
- E.g Person, Bank Account, Address etc
Class
- Set of objects with the same properties
- Forms the blueprint of an object
Client

Creates class objects and manipulates them with public operations
Accessor

Can only view values of data members
Modifier

Can view and/or change data members
Constructor

Used to build and initialize an object
Types of constructor
- Default: Data members initialized with default values
- Constructor with arguments
What happens if no constructor is included?

Data members are not initialized
Operators that always work with user-defined objects
- Assignment "=" - Assigns each data member of an object
- Dot"." - Used to access class members
Two parts of a class
- Interface (.h)
- Implementation (.cc)
Struct/record

A class where all data members are declared public
Compiler directive, to prevent excess copies/code
- // In the header file
- #ifndef CLASSNAME_H
- #define CLASSNAME_H
...
- ...
- #endif
What is, "::"
- The scope resolution operator
- Used as a prefix to each function name in the header
Accessor methods should be...
- constant (const)
- const className& object //in header and parameters
static members
- Are the same across all instances of a class
- Usual members are limited to each instance
Declaring, and using static objects
- Declaration: static member
- Accesssing: className::member
- where member refers to a method or datamember

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Author

Ant

328322

Card Set

CPSC - Object Oriented Programming

Description

CPSC

Updated

2017-02-11T02:45:36Z

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