Notesale: Turn your study into money

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CHAPTER 1
OOP vs
...

Programs have greater reliability
 Fewer

logical errors occurs in the initial stage of
program development and writing



Programs require less time to debug and test
 Fewer

errors are made in writing programs
 Faster to correct those errors - modularity


Programs are easier to maintain

Limitations of SP


Emphasis on doing things (process/function)
 Bank







– withdraw, deposit, transfer

Large program are divided into smaller programs
called functions
Most of the functions share global data
Data is accessible from one function to another
Employ top-down approach of programming

Object Oriented Programming




Is a programming approach that focuses on
using objects to design and build applications
...

Save time and high productivity
Secure program codes
Multiple instance of a class is possible
Easy to partition the work based on objects
Easy to upgrade from smaller to larger system
Software complexity can be managed

Characteristics of OOP


It gives importance to data (object) rather than
procedure (process)
 Bank







– customer, money, account

Programs are divided into objects
Data is hidden
Objects may communicate with each other
New data and function can be easily added
Employ bottom-up approach

End of Chapter 1



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