Object-oriented programming (OOP) is a programming paradigm that uses "objects" to model real-world entities. Key concepts of OOP include abstraction, inheritance, and polymorphism. C++ was created by Bjarne Stroustrup in 1979 as an extension of C with object-oriented capabilities. It supports both procedural and object-oriented programming. C++ has become one of the most popular and widely used general-purpose programming languages.
C++ was developed from C by adding features like non-object-oriented extensions from C, object-oriented extensions, and generic programming extensions. C++ is a superset of C, with minor exceptions. Key C++ features include declarations and definitions, namespaces to avoid name collisions, constants declared with const, and new input/output methods using objects like cout and cin instead of library functions. New casts like static_cast and const_cast were also introduced to replace old C-style casts.
The constructor constructs objects and initializes member variables when an object is created. The destructor destroys objects when they are no longer needed. Constructors and destructors have the same name as the class and are automatically called by the compiler. Constructors can be overloaded and can have default arguments to initialize objects differently. Copy constructors allow objects to be initialized by passing references of other objects. Destructors destroy objects before they go out of scope.
This document provides an overview of key differences between C and C++. It discusses how C++ was designed to be compatible with C but adds features like classes, templates, and exceptions. It notes some common C constructs like function prototypes, printf/scanf, arrays, strings, memory management with malloc/free, macros, and const that have equivalents but sometimes subtle differences in C++. The document aims to help C++ programmers understand how to program in C when needed.
The document discusses object-oriented programming concepts and their implementation in C++. It introduces five major principles of OOP: data abstraction, encapsulation, information hiding, polymorphism, and inheritance. It describes how these concepts are realized in C++ through classes, public and private members, operator overloading, and derived classes. The document also contrasts C and C++ features like strong typing and use of new/delete instead of malloc/free for memory management.
This document discusses the diamond problem that can occur with multiple inheritance in C++. When a class inherits from two parent classes that both inherit from the same grandparent class, it can cause ambiguities when calling methods from the grandparent class. To resolve this, the inheritance relationships must be specified as virtual to ensure there is only one instance of the grandparent class in the inheritance hierarchy.
Sometimes you see code that is perfectly OK according to the definition of the language, but which is flawed because it breaks too many established idioms and conventions. On the other hand, a solid piece of code is something that looks like it is written by an experienced person who cares about professionalism in programming.
A presentation at Norwegian Developer Conference 2010
This document provides an overview of C++ and object-oriented programming concepts. It discusses:
1. C++ is an object-oriented programming language introduced in the 1980s that retains the power of C and adds classes, inheritance, function overloading, and operator overloading.
2. OOP languages like C++ are well-suited for developing large, complex programs like editors, compilers, databases, and communication systems due to features like modularity and code reusability.
3. A simple C++ program is presented that demonstrates basic syntax like main(), comments, cout and << operators, and return type for main(). Classes and member functions are also introduced.
The document discusses various object-oriented programming concepts in C++ like classes, objects, member functions, data members, constructors, destructors, friend functions, and namespaces. It provides examples of defining classes with data members and member functions, declaring objects of a class, and using constructors and destructors. It also explains concepts like overloaded constructors, copy constructors, nested classes, dynamic initialization of objects, and friend functions.
C++ was developed from C by adding features like non-object-oriented extensions from C, object-oriented extensions, and generic programming extensions. C++ is a superset of C, with minor exceptions. Key C++ features include declarations and definitions, namespaces to avoid name collisions, constants declared with const, and new input/output methods using objects like cout and cin instead of library functions. New casts like static_cast and const_cast were also introduced to replace old C-style casts.
The constructor constructs objects and initializes member variables when an object is created. The destructor destroys objects when they are no longer needed. Constructors and destructors have the same name as the class and are automatically called by the compiler. Constructors can be overloaded and can have default arguments to initialize objects differently. Copy constructors allow objects to be initialized by passing references of other objects. Destructors destroy objects before they go out of scope.
This document provides an overview of key differences between C and C++. It discusses how C++ was designed to be compatible with C but adds features like classes, templates, and exceptions. It notes some common C constructs like function prototypes, printf/scanf, arrays, strings, memory management with malloc/free, macros, and const that have equivalents but sometimes subtle differences in C++. The document aims to help C++ programmers understand how to program in C when needed.
The document discusses object-oriented programming concepts and their implementation in C++. It introduces five major principles of OOP: data abstraction, encapsulation, information hiding, polymorphism, and inheritance. It describes how these concepts are realized in C++ through classes, public and private members, operator overloading, and derived classes. The document also contrasts C and C++ features like strong typing and use of new/delete instead of malloc/free for memory management.
This document discusses the diamond problem that can occur with multiple inheritance in C++. When a class inherits from two parent classes that both inherit from the same grandparent class, it can cause ambiguities when calling methods from the grandparent class. To resolve this, the inheritance relationships must be specified as virtual to ensure there is only one instance of the grandparent class in the inheritance hierarchy.
Sometimes you see code that is perfectly OK according to the definition of the language, but which is flawed because it breaks too many established idioms and conventions. On the other hand, a solid piece of code is something that looks like it is written by an experienced person who cares about professionalism in programming.
A presentation at Norwegian Developer Conference 2010
This document provides an overview of C++ and object-oriented programming concepts. It discusses:
1. C++ is an object-oriented programming language introduced in the 1980s that retains the power of C and adds classes, inheritance, function overloading, and operator overloading.
2. OOP languages like C++ are well-suited for developing large, complex programs like editors, compilers, databases, and communication systems due to features like modularity and code reusability.
3. A simple C++ program is presented that demonstrates basic syntax like main(), comments, cout and << operators, and return type for main(). Classes and member functions are also introduced.
The document discusses various object-oriented programming concepts in C++ like classes, objects, member functions, data members, constructors, destructors, friend functions, and namespaces. It provides examples of defining classes with data members and member functions, declaring objects of a class, and using constructors and destructors. It also explains concepts like overloaded constructors, copy constructors, nested classes, dynamic initialization of objects, and friend functions.
This document provides an overview of the C programming language. It covers various C language concepts like data types, operators, control structures, arrays, strings, functions and more. The document is divided into 9 sections with each section covering a specific C concept. For example, section 1 provides an introduction to C including its history, the difference between compilers and interpreters. Section 2 covers data types, constants and variables in C. Section 3 discusses operators and expressions. Section 4 explains various control structures like if-else, switch case etc. Section 5 is about looping constructs like while, do-while and for loops. Section 6 demonstrates looping with patterns. Section 7 describes arrays in C including 1D and 2D arrays. Section 8 covers
This document contains notes from a lecture on C programming. It introduces basic C concepts like data types, operators, input/output functions, and provides examples of simple C programs. It also discusses compiling and executing C code, precedence rules for operators, and homework problems involving increment operators. The lecture aims to recap basic C knowledge and provide more in-depth coverage of topics like data types, arithmetic operations, and I/O functions.
개발 과정 최적화 하기 내부툴로 더욱 강력한 개발하기 Stephen kennedy _(11시40분_103호)changehee lee
The document discusses techniques for robust versioning of serialized data across changes to data structures and classes. It proposes a snapshot-based versioning system that records how to update data between different snapshots by comparing metadata and defining update functions. This allows chaining updates between multiple previous versions to reach the current one without constraining design changes or requiring conditional logic based on version numbers.
C++ 11 introduced several new features including rvalue references, auto type deduction, nullptr, range-based for loops, smart pointers, lambda functions, and tuples. These features improve code clarity, eliminate ambiguities, and enable moving semantics and perfect forwarding for more efficient code.
(4) c sharp introduction_object_orientation_part_iNico Ludwig
This document provides an introduction to object-oriented programming concepts in C#, including:
- Simulating reality through modeling real-world entities as classes with data fields and behavior methods.
- Relationships between classes like aggregation ("has-a") and generalization ("is-a") hierarchies.
- Defining classes with fields to represent an object's state, and methods to represent its behavior.
- Inheritance and specialization, where derived classes extend base classes while maintaining the substitution principle.
- Other concepts like encapsulation, properties, and class diagrams using UML notation.
This document provides an overview of the C programming language. It begins with an outline of topics covered, then discusses the history and development of C. Key features of C mentioned include its portability, speed, and ability to be extended by users. The document explains the role of compilers in converting C code to object code. It also includes examples of basic C programs and flowcharts, and covers C concepts like data types, variables, operators, and control structures. Overall, the document serves as an introduction to the C language, its history and basics.
The document contains 40 multiple choice questions related to computer science class 12. It covers topics like variables, data types, operators, loops, functions, arrays and more. The questions test concepts like escape sequences, format specifiers, assignment operators, comments, input/output functions, and the difference between various loops in C programming language. It is a practice test to help students prepare for their computer science exam.
This document provides an introduction to programming concepts like algorithms, functions, objects, and programming style. It specifically focuses on C++ programming. Some key points covered include:
- C++ is an object-oriented programming language that combines procedural programming features from C with object-oriented capabilities.
- Programs are made up of algorithms, which are step-by-step procedures to solve problems. Functions allow breaking programs into modular pieces.
- The main() function acts as the driver that runs the program. It and other functions have specific formatting conventions.
- The cout object is used to output text to the screen using insertion operators. Libraries like iostream provide important input/output capabilities.
- Programming style guidelines promote
This document provides an overview of key concepts in the first chapter of a C++ programming book, including:
1) The chapter introduces programming, algorithms, functions, classes, and the main() function in C++.
2) It describes how C++ programs are compiled and processed, and defines important terms like variables, objects, and namespaces.
3) The document explains how to use the cout object to display output in C++ using the insertion operator and escape sequences.
This document provides an overview of object-oriented programming concepts in C++ including classes, objects, encapsulation, and templates. It introduces the stack data structure and shows how to implement it using structs in C and then classes in C++. It demonstrates how classes allow data and functions to be bundled together through methods and constructors. The document also discusses templates which allow classes to be parameterized for different data types.
This document discusses implementing multiple inheritance in C++. It begins with an example where a Terminal class needs to inherit from both a Task and Displayed class. It then provides background on multiple inheritance and how it allows combining independent concepts. The document outlines C++'s existing single inheritance implementation strategy before describing the author's approach to multiple inheritance, which preserves C++'s efficiency while supporting an object having more than one base class.
Constructors and destructors are special member functions in C++ that are used to initialize and cleanup objects. Constructors are called automatically when an object is created and are used to set initial values for object attributes. Destructors are called automatically when an object is destroyed and can perform cleanup tasks. There are different types of constructors like default, parameterized, and copy constructors. Destructors do not have parameters and are used to deallocate memory when objects are destroyed.
C and C ++ Training in Ambala ! BATRA COMPUTER CENTREjatin batra
Batra Computer Centre is An ISO certified 9001:2008 training Centre in Ambala.
We Provide Best C and C ++ Training in Ambala. BATRA COMPUTER CENTRE provides best training in C, C++, S.E.O, Web Designing, Web Development and So many other courses are available.
The document provides an overview of topics that will be covered in a C programming course across 10 sessions. Session 1 introduces basic C concepts. Session 2 covers data types and variables. Session 3 discusses various operators in C like arithmetic, assignment, unary, conditional, relational and logical operators. Later sessions will cover loops, arrays, functions, structures, pointers, file I/O and more advanced C topics. The document includes examples of basic C programs to demonstrate concepts like input/output, arithmetic operations and unary operators.
This document discusses how Fortran 90 supports object-oriented programming features like encapsulation, inheritance, and polymorphism. It provides an example program that defines Rectangle and Circle classes to calculate the area of different shapes. The program uses a generic compute_area function that can accept either shape type due to polymorphism. This allows the common area calculation operation to work across different classes in an object-oriented way using Fortran 90 features.
OOP in C - Before GObject (Chinese Version)Kai-Feng Chou
This document discusses object-oriented programming concepts in C, including constructors. It explains how constructors work in C++, and how they can be simulated in C by using naming conventions and manually initializing parent and member values. The document concludes that for more complex inheritance hierarchies, it is better to use an object system like GObject that handles constructor execution order and initialization automatically.
Contains C programming tutorial for beginners with lot of examples explained. This tutorial contains each and every feature of C programming that will help you. C programming tutorial covering basic C Programming examples, data types, functions, loops, arrays, pointers, etc.
An introduction to the C programming language for the students of the course "HJ-82 Ontwerpen voor de optie multimedia en signaalverwerking: seminaries", taught by the authors at the Catholic University of Leuven.
This document discusses object-oriented programming constructors in 3 or less sentences:
Constructors initialize class objects and are called automatically when an object is created; they can have parameters or default values and there can be multiple constructors that differ in parameters; constructors initialize data members and are used to assign initial values or open connections when an object is instantiated.
This document provides an overview of greedy algorithms, including examples and analysis. It discusses how greedy algorithms work by making locally optimal choices at each step in hopes of finding a global optimum. Examples covered include counting change using coins, scheduling jobs on processors, minimum spanning trees, and Dijkstra's shortest path algorithm. The document notes that greedy algorithms may not always find the optimal solution and provides examples where they fail. It also analyzes the time complexity of various greedy algorithms.
The document discusses various aspects of developing computer programs and systems. It covers topics like how programmers move from defining a problem to developing an algorithm and writing code. It also discusses programming languages, structured and object-oriented programming methodologies, and the systems development life cycle from analysis through maintenance.
The document discusses greedy algorithms and their applications. It provides examples of problems that greedy algorithms can solve optimally, such as the change making problem and finding minimum spanning trees (MSTs). It also discusses problems where greedy algorithms provide approximations rather than optimal solutions, such as the traveling salesman problem. The document describes Prim's and Kruskal's algorithms for finding MSTs and Dijkstra's algorithm for solving single-source shortest path problems. It explains how these algorithms make locally optimal choices at each step in a greedy manner to build up global solutions.
This document provides an overview of the C programming language. It covers various C language concepts like data types, operators, control structures, arrays, strings, functions and more. The document is divided into 9 sections with each section covering a specific C concept. For example, section 1 provides an introduction to C including its history, the difference between compilers and interpreters. Section 2 covers data types, constants and variables in C. Section 3 discusses operators and expressions. Section 4 explains various control structures like if-else, switch case etc. Section 5 is about looping constructs like while, do-while and for loops. Section 6 demonstrates looping with patterns. Section 7 describes arrays in C including 1D and 2D arrays. Section 8 covers
This document contains notes from a lecture on C programming. It introduces basic C concepts like data types, operators, input/output functions, and provides examples of simple C programs. It also discusses compiling and executing C code, precedence rules for operators, and homework problems involving increment operators. The lecture aims to recap basic C knowledge and provide more in-depth coverage of topics like data types, arithmetic operations, and I/O functions.
개발 과정 최적화 하기 내부툴로 더욱 강력한 개발하기 Stephen kennedy _(11시40분_103호)changehee lee
The document discusses techniques for robust versioning of serialized data across changes to data structures and classes. It proposes a snapshot-based versioning system that records how to update data between different snapshots by comparing metadata and defining update functions. This allows chaining updates between multiple previous versions to reach the current one without constraining design changes or requiring conditional logic based on version numbers.
C++ 11 introduced several new features including rvalue references, auto type deduction, nullptr, range-based for loops, smart pointers, lambda functions, and tuples. These features improve code clarity, eliminate ambiguities, and enable moving semantics and perfect forwarding for more efficient code.
(4) c sharp introduction_object_orientation_part_iNico Ludwig
This document provides an introduction to object-oriented programming concepts in C#, including:
- Simulating reality through modeling real-world entities as classes with data fields and behavior methods.
- Relationships between classes like aggregation ("has-a") and generalization ("is-a") hierarchies.
- Defining classes with fields to represent an object's state, and methods to represent its behavior.
- Inheritance and specialization, where derived classes extend base classes while maintaining the substitution principle.
- Other concepts like encapsulation, properties, and class diagrams using UML notation.
This document provides an overview of the C programming language. It begins with an outline of topics covered, then discusses the history and development of C. Key features of C mentioned include its portability, speed, and ability to be extended by users. The document explains the role of compilers in converting C code to object code. It also includes examples of basic C programs and flowcharts, and covers C concepts like data types, variables, operators, and control structures. Overall, the document serves as an introduction to the C language, its history and basics.
The document contains 40 multiple choice questions related to computer science class 12. It covers topics like variables, data types, operators, loops, functions, arrays and more. The questions test concepts like escape sequences, format specifiers, assignment operators, comments, input/output functions, and the difference between various loops in C programming language. It is a practice test to help students prepare for their computer science exam.
This document provides an introduction to programming concepts like algorithms, functions, objects, and programming style. It specifically focuses on C++ programming. Some key points covered include:
- C++ is an object-oriented programming language that combines procedural programming features from C with object-oriented capabilities.
- Programs are made up of algorithms, which are step-by-step procedures to solve problems. Functions allow breaking programs into modular pieces.
- The main() function acts as the driver that runs the program. It and other functions have specific formatting conventions.
- The cout object is used to output text to the screen using insertion operators. Libraries like iostream provide important input/output capabilities.
- Programming style guidelines promote
This document provides an overview of key concepts in the first chapter of a C++ programming book, including:
1) The chapter introduces programming, algorithms, functions, classes, and the main() function in C++.
2) It describes how C++ programs are compiled and processed, and defines important terms like variables, objects, and namespaces.
3) The document explains how to use the cout object to display output in C++ using the insertion operator and escape sequences.
This document provides an overview of object-oriented programming concepts in C++ including classes, objects, encapsulation, and templates. It introduces the stack data structure and shows how to implement it using structs in C and then classes in C++. It demonstrates how classes allow data and functions to be bundled together through methods and constructors. The document also discusses templates which allow classes to be parameterized for different data types.
This document discusses implementing multiple inheritance in C++. It begins with an example where a Terminal class needs to inherit from both a Task and Displayed class. It then provides background on multiple inheritance and how it allows combining independent concepts. The document outlines C++'s existing single inheritance implementation strategy before describing the author's approach to multiple inheritance, which preserves C++'s efficiency while supporting an object having more than one base class.
Constructors and destructors are special member functions in C++ that are used to initialize and cleanup objects. Constructors are called automatically when an object is created and are used to set initial values for object attributes. Destructors are called automatically when an object is destroyed and can perform cleanup tasks. There are different types of constructors like default, parameterized, and copy constructors. Destructors do not have parameters and are used to deallocate memory when objects are destroyed.
C and C ++ Training in Ambala ! BATRA COMPUTER CENTREjatin batra
Batra Computer Centre is An ISO certified 9001:2008 training Centre in Ambala.
We Provide Best C and C ++ Training in Ambala. BATRA COMPUTER CENTRE provides best training in C, C++, S.E.O, Web Designing, Web Development and So many other courses are available.
The document provides an overview of topics that will be covered in a C programming course across 10 sessions. Session 1 introduces basic C concepts. Session 2 covers data types and variables. Session 3 discusses various operators in C like arithmetic, assignment, unary, conditional, relational and logical operators. Later sessions will cover loops, arrays, functions, structures, pointers, file I/O and more advanced C topics. The document includes examples of basic C programs to demonstrate concepts like input/output, arithmetic operations and unary operators.
This document discusses how Fortran 90 supports object-oriented programming features like encapsulation, inheritance, and polymorphism. It provides an example program that defines Rectangle and Circle classes to calculate the area of different shapes. The program uses a generic compute_area function that can accept either shape type due to polymorphism. This allows the common area calculation operation to work across different classes in an object-oriented way using Fortran 90 features.
OOP in C - Before GObject (Chinese Version)Kai-Feng Chou
This document discusses object-oriented programming concepts in C, including constructors. It explains how constructors work in C++, and how they can be simulated in C by using naming conventions and manually initializing parent and member values. The document concludes that for more complex inheritance hierarchies, it is better to use an object system like GObject that handles constructor execution order and initialization automatically.
Contains C programming tutorial for beginners with lot of examples explained. This tutorial contains each and every feature of C programming that will help you. C programming tutorial covering basic C Programming examples, data types, functions, loops, arrays, pointers, etc.
An introduction to the C programming language for the students of the course "HJ-82 Ontwerpen voor de optie multimedia en signaalverwerking: seminaries", taught by the authors at the Catholic University of Leuven.
This document discusses object-oriented programming constructors in 3 or less sentences:
Constructors initialize class objects and are called automatically when an object is created; they can have parameters or default values and there can be multiple constructors that differ in parameters; constructors initialize data members and are used to assign initial values or open connections when an object is instantiated.
This document provides an overview of greedy algorithms, including examples and analysis. It discusses how greedy algorithms work by making locally optimal choices at each step in hopes of finding a global optimum. Examples covered include counting change using coins, scheduling jobs on processors, minimum spanning trees, and Dijkstra's shortest path algorithm. The document notes that greedy algorithms may not always find the optimal solution and provides examples where they fail. It also analyzes the time complexity of various greedy algorithms.
The document discusses various aspects of developing computer programs and systems. It covers topics like how programmers move from defining a problem to developing an algorithm and writing code. It also discusses programming languages, structured and object-oriented programming methodologies, and the systems development life cycle from analysis through maintenance.
The document discusses greedy algorithms and their applications. It provides examples of problems that greedy algorithms can solve optimally, such as the change making problem and finding minimum spanning trees (MSTs). It also discusses problems where greedy algorithms provide approximations rather than optimal solutions, such as the traveling salesman problem. The document describes Prim's and Kruskal's algorithms for finding MSTs and Dijkstra's algorithm for solving single-source shortest path problems. It explains how these algorithms make locally optimal choices at each step in a greedy manner to build up global solutions.
This document introduces a new programming tips website created by a Japanese programmer to provide concise code examples and explanations in a structured format. Previously, the programmer found the process of hosting code examples on a blog along with explanations to be messy. The new site addresses this by storing code examples in a GitHub repository and programmatically generating static HTML files from the code to deploy on a website. This provides a cleaner architecture and makes it easier to maintain programming tips in a consistent format. The goal is for the site to become a standard resource for programming tips by expanding its content and attracting contributors.
This document provides information about pharmaceutical suspensions. It defines a suspension as a coarse dispersion where an insoluble solid active ingredient is uniformly dispersed throughout an external aqueous or non-aqueous liquid phase. Suspensions are formulated when drugs are insoluble, to mask bitter tastes, increase stability, or achieve sustained release. Key factors in formulating stable suspensions include particle size, shape, wettability, and use of suspending agents to decrease interparticle attraction and impart viscosity. Proper manufacturing controls suspension quality.
The document contains code snippets and descriptions for various C++ programs, including:
1) An abstract class example with Shape as the base class and Rectangle and Triangle as derived classes, demonstrating polymorphism.
2) A program that counts the words in a text by getting user input and parsing for whitespace.
3) An Armstrong number checker that determines if a number is an Armstrong number based on the sum of its digits.
4) Various other examples like binary search, complex number arithmetic, stacks, inheritance, and converting between Celsius and Fahrenheit temperatures.
Tanya Sharma submitted a project on Kentucky Fried Chicken (KFC) for her BBA LLB program. The document discusses KFC's history starting from its founder Colonel Sanders. It outlines KFC's expansion globally and into India. Issues KFC faced in India included high MSG levels in its food and protests over animal treatment. The document analyzes KFC's strengths like brand recognition, weaknesses like long product development times, and opportunities and threats in various markets.
The document provides programming tips for OpenFOAM, including:
1) How to get a patch's ID from its name using findPatchID().
2) How to calculate the sum of a field over a specified patch using gSum().
3) How to access boundary values of a variable on a patch and the cells adjacent to the patch using boundaryField() and faceCells().
4) How to read cell zone definitions and access cell labels using cellZones() and findZoneID().
It also demonstrates using logical operators on boolLists, appending to DynamicLists, and removing duplicate values from a list.
Presentation On The Survey Of Washing Powderguest561f62
The survey analyzed consumer preferences for washing powder brands in India. It found that Surf Excel has the strongest market share, with 96% of respondents preferring it for washing machines. Most consumers purchase washing powder monthly and in 1 kg packs from retail stores. While 60% of consumers were satisfied overall with their brand, recommendations to weaker brands like Henko included increasing advertising, improving distribution channels, lowering costs, observing competitors, and offering online or delivery options.
14 Principles of HENRI FAYOL project on KFC Class-XIIAtif Khan
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
An insight into why Ghari Detergent is a successful product, especially in the rural market of the country, its SWOT analysis, marketing mix, and Michael Porter;s Five Forces Model. Also, a suggestion on a variety of strategies which could be implemented to increase the reach and market share of the product, in reference with the Ansoff Matrix.
This document summarizes a presentation given by Blair Schneider McKay on October 22, 2003. The presentation covered design patterns including Adapter, Bridge, Factory Method, and Observer. It also included a section on "How to Keep an Information-Technology Job". The agenda outlined the topics to be covered in the 50 minute presentation on design patterns and the 20 minute section on keeping an IT job.
The document provides an overview of basic C++ concepts including:
- C++ was developed as an extension of the C language and can be coded in an object-oriented or C-style.
- Keywords were added to support object-orientation, exceptions, and other features.
- Pointers in C++ store the address of a variable in memory.
- Blocks allow code sections to have their own local variables with minimized scope.
- Binding refers to converting functions/variables to machine addresses, which can be static/early or dynamic/late.
- Variables are statically scoped in C++ and type checking is done at compile-time rather than run-time.
- Most C++
Functions And Header Files In C++ | Bjarne stroustrupSyedHaroonShah4
This document discusses functions and header/source files in C++. It covers declarations, definitions, and the differences between them. Declarations introduce names and specify types, while definitions also fully specify the entity. Declarations allow interfaces to be specified. Headers contain declarations to share interfaces between parts of a program. Functions are described as units of operation that can take parameters and return values. The document also discusses scopes, namespaces, and storage classes like static.
C++ was designed to provide Simula's facilities for program organization together with C's efficiency and flexibility for systems programming. C++ features include classes, operator overloading, references, virtual functions, templates, and exceptions. Classes allow defining types with member functions and data, while templates provide a macro-like polymorphism for containers. Namespaces help avoid name collisions in large programs. The Standard Template Library provides common data structures and algorithms. C++ can be used for embedded systems if the compiler is suitable and features like inheritance, templates and exceptions are used judiciously.
C++ was designed to provide Simula's facilities for program organization together with C's efficiency and flexibility for systems programming. C++ features include classes, operator overloading, references, virtual functions, templates, and exceptions. Classes allow defining user-defined types with member functions and data. Templates provide a macro-like polymorphism for containers. Namespaces help avoid name collisions in large programs. The Standard Template Library includes containers, algorithms, and I/O streams. While C++ adds overhead, some features like classes and namespaces have little runtime impact.
The document provides an introduction to the C programming language, including its history and evolution. It discusses key elements of C programs like main functions, libraries, headers, source/header files. It also covers basic C concepts like data types, variables, operators, functions, pointers, arrays, comments and preprocessor directives. Examples of simple C programs are provided to illustrate these concepts.
The document provides an introduction to the C programming language, including its history and evolution. It discusses key elements of C programs like functions, variables, data types, comments, preprocessor directives, libraries and headers. It also covers pointers, arrays, passing command line arguments and standard header files in C. Examples of simple C programs are provided to illustrate various concepts.
The document provides an introduction to the C programming language, including its history and evolution. It discusses key elements of C programs like functions, variables, data types, libraries, headers, and compilers. It also covers pointers, arrays, preprocessor directives, and macros. Examples are provided to illustrate basic C programs and common programming constructs in C.
The document outlines a lecture plan for object oriented programming. It covers topics like structures and classes, function overloading, constructors and destructors, operator overloading, inheritance, polymorphism, and file streams. It provides examples to explain concepts like structures, classes, access specifiers, friend functions, and operator overloading. The document also includes questions for students to practice these concepts.
This document provides an overview of the Dart programming language. It discusses why Dart was created by Google, its key design goals around flexibility, familiarity, and performance. It also summarizes Dart's main features like optional typing, classes and interfaces, libraries, and futures. The document encourages attendees to get involved in the technical preview by visiting the Dart website, joining mailing lists, and using online resources.
1) A base class pointer can point to a derived class object but cannot access the derived class's additional functions without a cast.
2) Declaring a function as virtual in the base class allows it to be overridden in derived classes and called polymorphically through a base class pointer.
3) A pure virtual function is like an abstract function that derived classes must implement. A class with a pure virtual function is an abstract class that cannot be instantiated.
Vladymyr Bahrii Understanding polymorphism in C++ 16.11.17LogeekNightUkraine
The document discusses polymorphism in C++, including static polymorphism through function overloading and templates, and dynamic polymorphism using virtual functions and inheritance. It explains key concepts like the virtual method table that allows dynamic dispatch at runtime. The document provides examples of polymorphism techniques like the curiously recurring template pattern and proper use of virtual destructors. It warns against invoking virtual functions from constructors due to the class hierarchy not being fully established yet.
C is a procedural programming language. It was developed in the early 1970s and is still widely used. The document provides an overview of key aspects of C including data types, variables, constants, operators, control statements like if/else, and functions. It also discusses C programming concepts like low-level vs high-level languages, header files, comments, escape sequences, and more. The document serves as a useful introduction and reference for someone learning the basics of the C programming language.
This document provides an overview of graphics programming in C++ using the G3D library. It discusses that C++ is widely used for computer graphics and combines low-level and high-level features. It also introduces the G3D library, which is an open source cross-platform library for 3D graphics that handles much of the complex infrastructure. The document then provides tips for programmers with Java experience on some key differences between C++ and Java and aspects of C++ they should be aware of for graphics programming.
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The document provides an overview of key concepts in C++, including:
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This document provides an overview of the C++ programming language including its history, common features, and useful resources for learning C++. It discusses data types, classes, functions, pointers, references, operator overloading, templates, and more. Code examples are provided to illustrate key concepts. Useful online tutorials and references are listed for further learning C++.
This document provides a quick introduction to the C programming language. It begins with an overview of writing and running C programs, including compiling source code into an executable binary. It then discusses some key C programming concepts like functions, memory, variables, and data types. The document uses simple examples like a "Hello World" program to demonstrate basic C syntax and how programs are executed. Overall, it aims to give new C programmers a high-level understanding of some essential C programming fundamentals in about 3 pages.
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Course1
1. Universitatea de Vest din Timişoara Facultatea de Matematică şi Informatică
Object Oriented Programming
Lect. Dr. Daniel POP
2. “Getting around”
New things will be thought both in courses and in labs; don’t
miss them; they all matter for the final exam!
In the ‘Further Reading’ sections – what’s in bold is mandatory,
the rest being optional reading
Feedback is always welcome; there’s no stupid question!; don’t
be afraid to interrupt!
Attendance to courses and labs: according to faculty’s rules
Final examination: practical + written tests (to be further refined)
Contact information:
– Email: danielpop@info.uvt.ro
– Web: http://web.info.uvt.ro/~danielpop
Programming II Object-Oriented Programming 2
3. Scope and objectives
Scope
Develop the knowledge and skills for building
small/medium-sized object-oriented programs
Objectives
To learn object-oriented concepts
To know C++ language syntax
To build console applications using C++ language (GUI,
database access and other additional libraries are not in the
scope of this course and will be covered by further courses)
Introduction to object-oriented analysis and design
Programming II Object-Oriented Programming 3
4. Course Outline
• Programming techniques and object-oriented history
• Abstract data types
• Object-oriented concepts: classes and objects
• Operator overloading
• Class relationships
• Inheritance. Multiple inheritance. Class hierarchies
• Exception handling
• Generic programming. Template class & functions. Standard
Template Library (STL)
• Object-oriented analysis and design. UML. Design patterns
Programming II Object-Oriented Programming 4
5. Course #1 Agenda
• The Road To Object-Oriented Programming and
Beyond
• Object-oriented Programming and C++ History
Programming II Object-Oriented Programming 5
6. The Road to OOP and Beyond
Unstructured programming
Procedural programming
Modular programming
Data abstraction
Object-oriented programming
Generic programming
Programming II Object-Oriented Programming 6
7. Unstructured Programming
Simple / small application consisting of one main program
Program = sequence of commands (statements) which modify global
data
Drawback: unmanageable as program gets bigger; a lot of
copy/paste-ed code
Example: in Assembler, C, Pascal etc.
test.c
// data
void main(int argc, char* argv[]) {
// local data
// statements
}
Programming II Object-Oriented Programming 7
8. Procedural Programming
Based on the notion of procedure (function)
Decide which procedures you want; use the best algorithms you can find.
Drawback: handling different the data structures and the algorithms operating on
data
Example: programs written using C, Pascal, Fortran, Algol
test.c
double sqrt(double arg1) { void f(double arg1, sometype arg2) {
…. ….
…. sqrt(arg1);
} ….
}
void main(int argc, char* argv[]) {
// local data
f(10, data1);
// statements
sqrt(14.6);
}
Programming II Object-Oriented Programming 8
9. Modular Programming
Program size grows Organizing data
Decide which modules you want; partition the program so that data is hidden in
modules. (data hiding principle)
Drawback: only one state per module + each module exists only once in one program
user-defined types doesn’t behave the same way as built-in types
Example: programs written in C, Modula-2
stack.h stack.c
// declaration of the interface of module #include "stack.h"
char pop(); // ‘‘static’’ means local to this file/module
void push(char); static char v[stack_size];
const stack_size = 100;
static char* p = v; // the stack is initially empty
main.c
char pop() {
#include "stack.h"
// check for underflow and pop
void some_function() {
}
push(’c’);
char c = pop(); void push(char c) {
if (c != ’c’) error("impossible"); // check for overflow and push
} }
Programming II Object-Oriented Programming 9
10. Data Abstraction (I)
Based on user-defined types that behave the same way as built-in types (Abstract
Data Types)
Decide which types you want; provide a full set of operations for each type.
Drawback:no way of adapting an ADT to new uses except by modifying its
definition (need for “type fields” that distinguish between various instantiations)
Example: programs written using Ada, C++, Clu, Java
complex.h main.c
class complex {
double re, im; void f() {
public: int ia = 2,ib = 1/a;
complex(double r, double i) { re=r; im=i; } complex a = 2.3;
complex(double r) { re=r; im=0; } // float->complex conversion complex b = 1/a;
friend complex operator+(complex, complex); complex c = a+b*complex(1,2.3);
friend complex operator-(complex, complex); // binary minus
friend complex operator-(complex); // unary minus c = -(a/b)+2;
// ... }
};
Programming II Object-Oriented Programming 10
11. Data Abstraction (II)
Drawback:no way of adapting an ADT to new uses except by
modifying its definition (need for “type fields” that distinguish between
various instantiations) shape.cpp
void shape::draw() {
Example: switch (k) {
shape.h case circle: // draw a circle
enum kind { circle, triangle, square }; break;
class shape { case triangle: // draw a triangle
point center; break;
color col;
kind k; case square: // draw a square
// representation of shape break;
public:
point where() { return center; } default: // unknown shape
void move(point to) { center = to; draw(); } }
void draw(); }
};
Programming II Object-Oriented Programming 11
12. Object-Oriented Programming
World of interacting objects, each one managing its own state
Decide which classes you want; provide a full set of
operations for each class; make commonality explicit by
using inheritance.
Example: programs written using Simula, C++, Java, Eiffel, Smalltalk
etc.
shape.h rectangle.h
class shape { class rectangle : public shape {
point center; double width, height;
color col; // representation of rectangle
// representation of shape public:
public: void draw() {
point where() { return center; } // draw the rectangle
void move(point to) { center = to; draw(); } }
virtual void draw(); };
};
Programming II Object-Oriented Programming 12
13. Generic Programming
Express algorithms independently of representation details
Decide which algorithms you want; parameterize them so
that they work for a variety of suitable types and data
structures.
Example: programs written using C++, Java (≥ 1.5)
stack.h file.cpp
template<class T> class stack { void f() {
T* v; stack<char> schar;
int max_size, top; stack<complex> scomplex;
Public: stack<list<int>> slistint;
stack(int s);
~stack(); schar.push(‘c’);
void push(T v); if(schar.pop()!=‘c’) throw Impossible();
T pop(); scomplex.push(complex(3, 2));
}; }
Programming II Object-Oriented Programming 13
14. Object-Oriented Programming
1. What is Object-Oriented Programming?
2. Short history of OOP
3. What is C++?
4. Short history of C++
Programming II Object-Oriented Programming 14
15. Definitions (I)
• DEFINITION [Object Oriented Programming] A language or technique is
object-oriented if and only if it directly supports [Stroustrup, 1995]:
[1] Abstraction – providing some form of classes and objects
[2] Inheritance – providing the ability to build new abstractions out of existing
ones
[3] Runtime polymorphism – providing some form of runtime binding.
• This definition includes all major languages commonly referred to as
object-oriented: Ada95, Beta, C++, Java, CLOS, Eiffel, Simula, Smalltalk,
and many other languages fit this definition. Classical programming
languages without classes, such as C, Fortran4, and Pascal, are excluded.
Languages that lack direct support for inheritance or runtime binding, such
as Ada88 and ML are also excluded.
Programming II Object-Oriented Programming 15
16. Definitions (II)
• DEFINITION A typical dictionary definition reads: object: a visible or tangible thing of
relative stable form; a thing that may be apprehended intellectually; a thing to which
thought or action is directed [The Random House College Dictionary, 1975]
• DEFINITION [Object] Samplings from the OO literature include:
[1] An object has identity, state and behavior ([Booch, 1990]).
[2] An object is a unit of structural and behavioral modularity that has properties ([Buhr,
1998]).
[3] An object as a conceptual entity that: is identifiable, has features that span a local
state space, has operations that can change the status of the system locally, while also
inducing operations in peer objects. ([de Champeaux, 1993])
• Not easy to think “object-oriented”; shift from structural thinking; using classes,
methods and attributes is not OO!
Programming II Object-Oriented Programming 16
17. A Short History of Object-Oriented Programming
Simula 67 – the first OO programming language; extension of ALGOL60
Smalltalk – conceived by Alan Kay (Smalltalk-72, Smalltalk-80); dynamically
typed; Strongtalk (1993) – Smalltalk + type system
mid 80’s – many languages added support for OO: Objective C, C++, Object
Pascal, Modula 3, Oberon, Objective CAML, CLOS.
Eiffel – Bertrand Meyer (1988) – Pascal-like syntax, design-by-contract
Other “exotic” OO languages: Sather, Trellis/Owl, Emerald, Beta (evolution
of Simula), Self
Java – James Gosling (1995); Java 1.5 (2004) – support for generic
programming
(Theoretical) extensions to Java: e.g. GJ (1998)
[Bruce, 2002]
Programming II Object-Oriented Programming 17
18. What is C++?
• DEFINITION 1: C++ is a general-purpose programming language with a
bias towards systems programming that supports efficient low-level
computation, data abstraction, object-oriented programming, and generic
programming. [Stroustrup, 1999]
• DEFINITION 2: C++ is a statically-typed general-purpose language
relying on classes and virtual functions to support object-oriented
programming, templates to support generic programming, and providing
low-level facilities [Stroustrup, 1996]
to support detailed systems programming.
Programming II Object-Oriented Programming 18
19. C++ Design Ideas
C++ was designed to support a range of good and useful styles. Whether they were object-oriented,
and in which sense of the word, was either irrelevant or a minor concern [Stroustrup, 1995]:
[1] Abstraction – the ability to represent concepts directly in a program and hide incidental details
behind well-defined interfaces – is the key to every flexible and comprehensible system of any
significant size.
[2] Encapsulation – the ability to provide guarantees that an abstraction is used only according to
its specification – is crucial to defend abstractions against corruption.
[3] Polymorphism – the ability to provide the same interface to objects with differing
implementations – is crucial to simplify code using abstractions.
[4] Inheritance – the ability to compose new abstractions from existing one – is one of the most
powerful ways of constructing useful abstractions.
[5] Genericity – the ability to parameterize types and functions by types and values – is essential
for expressing type-safe containers and a powerful tool for expressing general algorithms.
[6] Coexistence with other languages and systems – essential for functioning in real-world
execution environments.
[7] Runtime compactness and speed – essential for classical systems programming.
[8] Static type safety – an integral property of languages of the family to which C++ belongs and
valuable both for guaranteeing properties of a design and for providing runtime and space
efficiency.
Programming II Object-Oriented Programming 19
20. A Short History of C++
1979 – 1983 C with Classes: Bjarne Stroustrup (AT&T Bell Labs)
ports concepts (e.g. classes, inheritance) from Simula67 to C
1982 – 1985 From C with Classes to C++: the first commercial
release and the printing of the book that defined C++ in October 1985
1985 – 1988 Release 2.0: Evolutions from the first release
1987 – today The Explosion in Interest and Use: growth of C++ tools
and library industry.
1988 – today Standardization: formal ISO and ANSI standardization.
1994 : Standard Template Library
1998 : International C++ standard
[Stroustrup 1992, Stroustrup 1997]
Programming II Object-Oriented Programming 20
21. Further Reading
Programming Techniques
• [Stroustrup, 1997] Bjarne Stroustrup – The C++ Programming Language 3rd Edition, Addison Wesley, 1997 [Chapter 2]
• [Mueller, 1996] Peter Müller – Introduction to Object-Oriented Programming Using C++, Globewide
Network Academy (GNA) www.gnacademy.org, 1996 [Chapter 2]
• [Stroustrup, 1991] Bjarne Stroustrup
- What is Object-Oriented Programming? (1991 revised version). Proc. 1st European Software Festival. February, 1991
• [Stroustrup, 1999] Bjarne Stroustrup - An Overview of the C++ Programming Language in “The Handbook of Object
Technology” (Editor: Saba Zamir). CRC Press LLC, Boca Raton. 1999. ISBN 0-8493-3135-8.
Short History of Object-Oriented Programming and C++
• [Bruce, 2002] Kim B. Bruce – Foundations of Object-Oriented Languages, MIT Press, 2002 [Page 113-116]
• [Stroustrup, 1992] Bjarne Stroustrup - A History of C++: 1979−1 991
• [Stroustrup, 1995] Bjarne Stroustrup - Why C++ is not just an Object-Oriented Programming Language, AT&T Bell
Laboratories Murray Hill, New Jersey; Invited talk given at OOPSLA’95, Austin, Texas.
• [Stroustrup, 1996] Bjarne Stroustrup
– A Brief Look at C++. IEEE AI Expert, Intelligent Systems and their Applications, pp 13-15. February 1996
• [de Champeaux, 1993] Dennis de Champeaux, Douglas Lea, and Penelope Faure - Object-Oriented System
Development, Addison Wesley,1993
• [Booch, 1990] G. Booch. Object Oriented Design with Applications. Benjamin/Cummings, 1990.
• [Buhr, 1998] R. Buhr. Machine charts for visual prototyping in system design. Technical Report 88-2, Carlton
University, August 1988.
Programming II Object-Oriented Programming 21