Why OOP-Object Oriented Programming-Lecture Slides, Slides of Object Oriented Programming

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Corollary „ „ „„ Introduction and learning the computersoftware for an engineering system issoftware for an engineering system issignificant.Identification of an appropriate software iscritically required to enhance the systemfunctionality.If the software is unavailableIf the software is unavailable, engineer must beable to create his/her own software. engineer must be

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Why OOP? „ „Limitations of procedurallanguages Developed to overcome limitations of the procedural programmingprocedural programming Fotran, etc.. ‰ ‰However, as the program grows larger thelevel of complexity increases! A set of instructions, given some input performthe desired outputDivided and organized in functions for repeatedset of instructions (easier to comprehend)set of instructions (easier to comprehend) languageslanguages, e.g., C, e g C

Usman Younis^ „„^ Un-restricted access to global dataLoose relationship between data and itscorresponding functionality^ ‰^ Often provided in a poor or insignificantorganization modell^ h^ b^ d^ d docsity.com

Usman Younis^ Un-restricted AccessUn-restricted Access (contd..)FunctionalityLocal Data^ Global DataGlobal DataNormal Case FunctionalityLocal Data

Usman YounisFunctionalityLocal DataGlobal Data^ Complex rather Confusing!Functionality^ Local DataGlobal Data^ FunctionalityLocal Data^ Global DataFunctionalityLocal Data docsity.com

Usman Younis^ Limitations (contd..)^ „^ „OOP Big-Picture^ Less able to provide “Real-World-Modeling”ofof^ ‰^ ‰Lack of “Extensibility”^ ‰^ Attributes — DataBehavior — FunctionalityLess able to provide user-defined data types,e.g., Complex Numbers (a +^ attributesattributes^ andand^ behaviorbehavior^ i b)

Usman Younis^ ‰^ ‰^ Encapsulation^ „Data Hiding^ Member FunctionsMember FunctionsObjObject AData and Functionality encapsulated in a single ObjectLocal Data^ A^ Member FunctionsMember FunctionsObjObject BLocal Data^ B docsity.com

Usman Younis^ Class & Objects^ „^ „Objects – An Example^ “Objects are members of classes”‰^ ‰This means Class acts a blue-print of an Object^ E gEyour program, as you requireAnd you can define as many Objects of a Class inyour program, as you require.g., you can define as many variables of type^ you can define as many variables of type Member Functions^ Data FunctionsMemberDataFunctions^ MemberData FunctionsMemberData^ intint^ inin

Usman Younis^ Gauges^ Steer^ Buildings docsity.com

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Usman YounisDerived Class^ InheritanceFunction AFunction C, DLocal DataBase Class^ Function B Function ADerived ClassLocal DataFunction AFunction BFunction ELocal DataFunction B Function ADerived ClassFunction FLocal DataFunction B

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