ºÝºÝߣ

ºÝºÝߣShare a Scribd company logo

Basics of c++

•Download as PPTX, PDF•
•
Jasleen Kaur (Chandigarh University)
Jasleen Kaur (Chandigarh University)

C++ was developed by Bjarne Stroustrup as an extension of C with classes and objects. It allows for real-world modeling through classes that can represent objects with both attributes and behaviors. A class is a user-defined datatype that is similar to a structure but includes data hiding - data is private by default. An object is an instance of a class, representing a variable of a user-defined type like a class.

1 of 12
Download to read offline
Basics of c++
BASICS OF C++
INTRODUCTION • Developed by Bjarne Stroustrup • Initially known as C with classes • C + Simula 67  C++ Increment operator
WHY C++ PROBLEMS WITH STRUCTURED PROGRAMMING: Unrestricted Access to GLOBAL DATA
WHY C++ RealWorld Modelling • In the physical world we deal with objects such as people and cars. • Such objects aren’t like data and they aren’t like functions. Complex real- world objects have both attributes and behaviour.
Examples of attributes (sometimes called characteristics) are, for people - eye colour and job title; Behaviour is something a real-world object does in response to some stimulus. If you ask your boss for a raise, she will generally say yes or no.
What is class??? User defined datatype Similar to structure datatype Structure + Data Hiding  class Data is private by default Includes member variables and member functions in class definition Hiding data from another functions in order to avoid unintentional modification
What is class??? Member variable Member function
What is object??? Blueprint of a class Instance of a class Variable of type class int rollno; student S1; Basic datatype User-defined datatype
Basics of c++
Basics of c++
Basics of c++

More Related Content

Basics of c++

  • 3. INTRODUCTION • Developed by Bjarne Stroustrup • Initially known as C with classes • C + Simula 67  C++ Increment operator
  • 4. WHY C++ PROBLEMS WITH STRUCTURED PROGRAMMING: Unrestricted Access to GLOBAL DATA
  • 5. WHY C++ RealWorld Modelling • In the physical world we deal with objects such as people and cars. • Such objects aren’t like data and they aren’t like functions. Complex real- world objects have both attributes and behaviour.
  • 6. Examples of attributes (sometimes called characteristics) are, for people - eye colour and job title; Behaviour is something a real-world object does in response to some stimulus. If you ask your boss for a raise, she will generally say yes or no.
  • 7. What is class??? User defined datatype Similar to structure datatype Structure + Data Hiding  class Data is private by default Includes member variables and member functions in class definition Hiding data from another functions in order to avoid unintentional modification
  • 8. What is class??? Member variable Member function
  • 9. What is object??? Blueprint of a class Instance of a class Variable of type class int rollno; student S1; Basic datatype User-defined datatype