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Lecture 15 - Lecture 15 Oct 28th 02 Object Oriented...

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Lecture 15 Oct 28 th , 02
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Object Oriented Programming Objects – Pens, Cars, Birds, Animals etc Objects have attributes like color, shape, size etc... Objects exhibit behavior or have certain functionalities eg: Pens write, birds fly, eat etc ....
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Pen Example We have a class of pens. A single pen object has attributes like color, shape, size etc... The pen is used to write.
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Class in C++ A class defines both data and functions. Data refers to attributes of an object. Functions refer to action or behavior of an object. A class forms the basic blue print for objects to be created with attributes and functions.
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Sections of a C++ program It has 3 sections 1. Class declaration. 2. Class implementation. 3. main() function.
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Class construction in C++ Programs // class declaration section class class_name { data members (instances and variables) function members }; // class implementation // main function
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Class declaration section Class Date { private: int month; int day; int year; public: Date (int =7, int =4, int =2001); void setdate (int, int, int ); void showdate (void); };
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