4 Classes & ObjectsPraveen M JigajinniThis document discusses classes and objects in C++. It defines a class as a collection of related data and functions under a single name. A class is a user-defined type that combines data representation and methods for manipulating that data into a single unit. Objects are instances of a class - variables that are declared based on a class type. The document covers defining classes, declaring objects, accessing class members, arrays within classes, access modifiers like public, private and protected, static class members, inline functions, friend functions and classes.
Learn C# Programming - Classes & InheritanceEng Teong CheahThe document provides an overview of classes and inheritance in C#. It defines what a class is and how to define a class with members like variables, methods, constructors and destructors. It discusses encapsulation, static members, inheritance between a base and derived class, and how to initialize the base class. While C# does not support multiple inheritance with classes, it can be implemented with interfaces. Examples are provided to demonstrate defining classes and inheritance.
Class propertiesSiva PriyaThe document discusses key concepts in class definitions in VB.Net including class structure with attributes, access modifiers, and inheritance indicators. It also covers class members like functions and encapsulation. Constructors and destructors are described as special member functions. Inheritance allows one class to inherit properties from another base class.
Chapter18 class-and-objectsDeepak SinghClasses allow you to combine data and functions into a single unit called an object. A class defines the type, while an object is a variable of that class type. Classes contain private, protected, and public members that control access levels. Private members can only be accessed within the class, protected within the class and subclasses, and public anywhere. An example class Circle contains private data member radius and public member functions setRadius() and getArea() to set and get the radius. Objects can then be declared like Circle c1, c2 and their member functions accessed such as c1.setRadius(2.5).
OopsSankar BalasubramanianObject-oriented programming (OOP) involves splitting a program into objects that contain both data and functions. OOP allows developers to define objects, their properties, and relationships. Classes are blueprints that define objects and don't use memory, while objects are instances of classes that hold both data and methods. Key concepts of OOP include inheritance, abstraction, polymorphism, and encapsulation.
classandobjectunit2-150824133722-lva1-app6891.pptmanomkpsgThe document discusses classes and objects in C++. Some key points:
- A class defines a new user-defined data type that encapsulates data members and member functions. Data members represent the attributes of an object, while member functions represent the behaviors.
- When a class is defined, objects can be instantiated from that class. Objects are instances of a class that allocate memory to store the class's data members. Multiple objects of the same class can exist.
- Member functions can access private data members, while non-member functions cannot. Member functions can be defined inside or outside the class. Static members exist only once per class rather than per object.
- Classes allow data abstraction by hiding implementation
Class and object in C++rprajat007This document discusses classes and objects in C++. It defines a class as a user-defined data type that implements an abstract object by combining data members and member functions. Data members are called data fields and member functions are called methods. An abstract data type separates logical properties from implementation details and supports data abstraction, encapsulation, and hiding. Common examples of abstract data types include Boolean, integer, array, stack, queue, and tree structures. The document goes on to describe class definitions, access specifiers, static members, and how to define and access class members and methods.
Classes and objects in c++Rokonuzzaman RonyClasses and objects allow bundling of related data and functions. An object is an instance of a class that contains the class's data members and can access its member functions. Classes improve on procedural programming by avoiding issues when data structures change. A class defines the data types and functions for a user-defined type using a class name, data members, and member functions. Objects are instances of classes that hold separate copies of class data. Access specifiers like public, private, and protected control access to class members.
Class and objectprabhat kumarThis document discusses object-oriented programming concepts in C++ including classes, objects, constructors, destructors, and friend functions. It begins by explaining that classes are abstract data types that contain data members and member functions. It then provides examples of declaring a class, creating objects, and accessing class members. It also covers topics like static class members, arrays of objects, constructor and destructor definitions and uses, and declaring friend functions to allow non-member functions access to private class members.
oops-123991513147-phpapp02.pdfArpitaJana28Object-oriented programming (OOP) is a paradigm that splits programs into objects that contain both data and functions. Classes define the attributes and behaviors of objects. Objects are instances of classes that encapsulate their state and behavior. Key concepts of OOP include inheritance, abstraction, polymorphism, and encapsulation.
Classes, objects and methodsfarhan amjadThe document discusses object-oriented programming concepts like classes, objects, member functions, data members, constructors, and encapsulation. It explains that a class defines the structure and behavior of objects, with data members representing attributes and member functions representing behaviors. Constructors initialize an object's data when it is created. Encapsulation protects data by making it private and only accessible through public member functions.
My c++snathickC++ is an object-oriented programming language that is an incremented version of C with classes added. Some key differences between C and C++ are that C++ uses object-oriented programming with classes that can contain both data and functions, while C focuses more on procedures/functions and allows any function to access data. The document then discusses the basic concepts of object-oriented programming in C++ including classes, objects, polymorphism, inheritance, encapsulation, and data abstraction. It provides examples of classes, objects, reference variables, default arguments, and dynamic memory allocation in C++.
OopsJaya KumariThis document discusses object-oriented programming concepts in VB.NET, including:
- Classes define templates for objects with data and behaviors, while objects are instances of classes.
- Features like abstraction, encapsulation, and polymorphism are supported.
- Properties and methods represent object data and behaviors. Constructors and destructors manage object instantiation and cleanup.
- An example class defines properties and a constructor to initialize objects.
Classes & objects newlykado0dlesA class defines a data structure that can contain both data and functions as members. An object is an instance of a class that allocates memory for the class's data members. Classes allow the declaration of multiple objects that each have their own copies of the class's data members and can access the class's member functions. Constructors initialize an object's data members when it is created, while destructors perform cleanup tasks when an object is destroyed.
OOPS IN PHP.pptxrani marriTo better understand the behavior of servlets, let’s take a look at the life cycle of servlets.
A servlet is basically a small Java program that runs within a Web server. It can receive requests from clients and return responses. The whole life cycle of a servlet breaks up into 3 phases:
• Initialization: A servlet is first loaded and initialized usually when it is requested by the corresponding clients. Some websites allow the users to load and initialize servlets when the server is started up so that the first request will get responded more quickly.
• Service: After initialization, the servlets serve clients on request, implementing the ap- plication logic of the web application they belong to.
• Destruction: When all pending requests are processed and the servlets have been idle for a specific amount of time, they may be destroyed by the server and release all the resources they occupy.
More specifically, the behavior of a servlet is described in javax.servlet.Servlet interface, in which the following methods are defined:
• public void init(ServletConfig config) throws ServletException
This method is called once when the servlet is loaded into the servlet engine, before the servlet is asked to process its first request.
The init method has a ServletConfig parameter. The servlet can read its initialization arguments through the ServletConfig object. How the initialization arguments are set is servlet engine dependent but they are usually defined in a configuration file.
A typical example of an initialization argument is a database identifier. A servlet can read this argument from the ServletConfig at initialization and then use it later to open a connection to the database during processing of a request:
private String databaseURL;
public void init(ServletConfig config) throws ServletException { super.init(config);
databaseURL = config.getInitParameter("database");
}
• public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException
This method is called to process a request. It can be called zero, one or many times until the servlet is unloaded.
Once a servlet is loaded, it remains in the server’s memory as a single object instance. Thereafter, the server invokes the servlet to handle a request using a simple, lightweight method invocation. Unlike with CGI, there’s no process to spawn or interpreter to invoke, so the servlet can begin handling the request almost immediately. Multiple, concurrent requests are handled by separate threads, so servlets are highly scalable.
Servlets are naturally enduring objects. Because a servlet stays in the server’s memory as a single object instance, it automatically maintains its state and can hold on to external resources, such as database connections, that may otherwise take several seconds to establish. The following servlet presents information about how many times it has been accessed:
To better understand the behavior of servlets, let’s take a lo
struct and class deferencesNaseer Khan NoorStructures are collections of variables of different data types, while classes can also contain functions. The main differences are: structures have public access by default, are used for small data groups, and objects are stored on the stack. Classes have private access by default, are used for larger amounts of data with abstraction and inheritance, and objects are stored on the heap. Both allow variables, functions, constructors/destructors, and inheritance, but classes provide more robust features for object-oriented programming.
Jedi slides 2.1 object-oriented conceptsMaryo ManjaruniThe document discusses key concepts in object-oriented software engineering including objects, classes, encapsulation, inheritance, polymorphism, and abstraction. It provides examples and definitions for each concept to illustrate how they are applied in object-oriented programming.
Object Oriented Programming Using C++Muhammad WaqasThis Powerpoint presentation covers following topics of C Plus Plus:
Features of OOP
Classes in C++
Objects & Creating the Objects
Constructors & Destructors
Friend Functions & Classes
Static data members & functions
class and object in c++.pptxAdarsh College, Hingoli1) A class defines a new data type that bundles together data (member variables) and functions (member functions) that operate on that data.
2) Classes allow data and functions to be hidden from external use through the use of public and private access specifiers, with private being the default. This is known as encapsulation.
3) An object is an instance of a class, created by declaring a variable of the class type. Objects can then access both public and private members of their class through the use of the dot operator.
Class objects oopmShweta ShahClasses allow binding of data and functions together through encapsulation. A class declaration specifies the data members and member functions, dividing them into private and public sections. Objects of a class are instantiated, allocating memory for each object. Member functions can access private data, while public functions are accessible to outside code. Friend functions declared in a class can also access private members but are not class members.
Classes and objectsLovely Professional UniversityA class defines the structure and behavior of an object. It groups together data members and member functions that operate on those data members. An object is an instance of a class created by declaring a variable of that class type. Classes in C++ use access specifiers like public and private to control access to members. A class declaration defines the structure while objects are instantiated from the class. Member functions allow manipulating and accessing private data members from outside the class.
Member Function in C++AbhishekSaini132328Member functions are functions declared inside a class that can access and modify the class's data members. Member functions can be defined inside or outside the class definition. If defined outside, the scope resolution operator (::) must be used along with the class name and function name. Public member functions can be accessed from outside the class using the dot operator (.) on a class object.
Classes-and-Objects-in-C++.pdfismartshanker1This document discusses key concepts of classes and objects in C++ including access specifiers, constructors, destructors, mutators and accessors, inline functions, polymorphism through operator and function overloading, static class members, friend functions and classes, inheritance, and virtual functions. It provides examples of how these concepts are implemented in C++ code.
Class and objectProf. Dr. K. AdiseshaThis document provides an introduction to classes and objects in C++. It defines key concepts like class, object, member functions, access specifiers, and arrays of objects. It also discusses defining objects of a class, accessing class members, passing objects as function arguments, and the differences between classes and structures in C++.
Interview preparation for programming.pptxBilalHussainShah5Object-oriented programming (OOP) is a programming paradigm based on the concept of objects that contain data and code. The four pillars of OOP are data abstraction, encapsulation, inheritance, and polymorphism. Data abstraction hides internal details and provides essential information. Encapsulation bundles data with the methods that operate on that data, protecting data within a class. Inheritance allows new classes to inherit properties from existing classes. Polymorphism gives the same functions different meanings depending on usage.
Class and objectprabhat kumarThis document discusses object-oriented programming concepts in C++ including classes, objects, constructors, destructors, and friend functions. It begins by explaining that classes are abstract data types that contain data members and member functions. It then provides examples of declaring a class, creating objects, and accessing class members. It also covers topics like static class members, arrays of objects, constructor and destructor definitions and uses, and declaring friend functions to allow non-member functions access to private class members.
oops-123991513147-phpapp02.pdfArpitaJana28Object-oriented programming (OOP) is a paradigm that splits programs into objects that contain both data and functions. Classes define the attributes and behaviors of objects. Objects are instances of classes that encapsulate their state and behavior. Key concepts of OOP include inheritance, abstraction, polymorphism, and encapsulation.
Classes, objects and methodsfarhan amjadThe document discusses object-oriented programming concepts like classes, objects, member functions, data members, constructors, and encapsulation. It explains that a class defines the structure and behavior of objects, with data members representing attributes and member functions representing behaviors. Constructors initialize an object's data when it is created. Encapsulation protects data by making it private and only accessible through public member functions.
My c++snathickC++ is an object-oriented programming language that is an incremented version of C with classes added. Some key differences between C and C++ are that C++ uses object-oriented programming with classes that can contain both data and functions, while C focuses more on procedures/functions and allows any function to access data. The document then discusses the basic concepts of object-oriented programming in C++ including classes, objects, polymorphism, inheritance, encapsulation, and data abstraction. It provides examples of classes, objects, reference variables, default arguments, and dynamic memory allocation in C++.
OopsJaya KumariThis document discusses object-oriented programming concepts in VB.NET, including:
- Classes define templates for objects with data and behaviors, while objects are instances of classes.
- Features like abstraction, encapsulation, and polymorphism are supported.
- Properties and methods represent object data and behaviors. Constructors and destructors manage object instantiation and cleanup.
- An example class defines properties and a constructor to initialize objects.
Classes & objects newlykado0dlesA class defines a data structure that can contain both data and functions as members. An object is an instance of a class that allocates memory for the class's data members. Classes allow the declaration of multiple objects that each have their own copies of the class's data members and can access the class's member functions. Constructors initialize an object's data members when it is created, while destructors perform cleanup tasks when an object is destroyed.
OOPS IN PHP.pptxrani marriTo better understand the behavior of servlets, let’s take a look at the life cycle of servlets.
A servlet is basically a small Java program that runs within a Web server. It can receive requests from clients and return responses. The whole life cycle of a servlet breaks up into 3 phases:
• Initialization: A servlet is first loaded and initialized usually when it is requested by the corresponding clients. Some websites allow the users to load and initialize servlets when the server is started up so that the first request will get responded more quickly.
• Service: After initialization, the servlets serve clients on request, implementing the ap- plication logic of the web application they belong to.
• Destruction: When all pending requests are processed and the servlets have been idle for a specific amount of time, they may be destroyed by the server and release all the resources they occupy.
More specifically, the behavior of a servlet is described in javax.servlet.Servlet interface, in which the following methods are defined:
• public void init(ServletConfig config) throws ServletException
This method is called once when the servlet is loaded into the servlet engine, before the servlet is asked to process its first request.
The init method has a ServletConfig parameter. The servlet can read its initialization arguments through the ServletConfig object. How the initialization arguments are set is servlet engine dependent but they are usually defined in a configuration file.
A typical example of an initialization argument is a database identifier. A servlet can read this argument from the ServletConfig at initialization and then use it later to open a connection to the database during processing of a request:
private String databaseURL;
public void init(ServletConfig config) throws ServletException { super.init(config);
databaseURL = config.getInitParameter("database");
}
• public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException
This method is called to process a request. It can be called zero, one or many times until the servlet is unloaded.
Once a servlet is loaded, it remains in the server’s memory as a single object instance. Thereafter, the server invokes the servlet to handle a request using a simple, lightweight method invocation. Unlike with CGI, there’s no process to spawn or interpreter to invoke, so the servlet can begin handling the request almost immediately. Multiple, concurrent requests are handled by separate threads, so servlets are highly scalable.
Servlets are naturally enduring objects. Because a servlet stays in the server’s memory as a single object instance, it automatically maintains its state and can hold on to external resources, such as database connections, that may otherwise take several seconds to establish. The following servlet presents information about how many times it has been accessed:
To better understand the behavior of servlets, let’s take a lo
struct and class deferencesNaseer Khan NoorStructures are collections of variables of different data types, while classes can also contain functions. The main differences are: structures have public access by default, are used for small data groups, and objects are stored on the stack. Classes have private access by default, are used for larger amounts of data with abstraction and inheritance, and objects are stored on the heap. Both allow variables, functions, constructors/destructors, and inheritance, but classes provide more robust features for object-oriented programming.
Jedi slides 2.1 object-oriented conceptsMaryo ManjaruniThe document discusses key concepts in object-oriented software engineering including objects, classes, encapsulation, inheritance, polymorphism, and abstraction. It provides examples and definitions for each concept to illustrate how they are applied in object-oriented programming.
Object Oriented Programming Using C++Muhammad WaqasThis Powerpoint presentation covers following topics of C Plus Plus:
Features of OOP
Classes in C++
Objects & Creating the Objects
Constructors & Destructors
Friend Functions & Classes
Static data members & functions
class and object in c++.pptxAdarsh College, Hingoli1) A class defines a new data type that bundles together data (member variables) and functions (member functions) that operate on that data.
2) Classes allow data and functions to be hidden from external use through the use of public and private access specifiers, with private being the default. This is known as encapsulation.
3) An object is an instance of a class, created by declaring a variable of the class type. Objects can then access both public and private members of their class through the use of the dot operator.
Class objects oopmShweta ShahClasses allow binding of data and functions together through encapsulation. A class declaration specifies the data members and member functions, dividing them into private and public sections. Objects of a class are instantiated, allocating memory for each object. Member functions can access private data, while public functions are accessible to outside code. Friend functions declared in a class can also access private members but are not class members.
Classes and objectsLovely Professional UniversityA class defines the structure and behavior of an object. It groups together data members and member functions that operate on those data members. An object is an instance of a class created by declaring a variable of that class type. Classes in C++ use access specifiers like public and private to control access to members. A class declaration defines the structure while objects are instantiated from the class. Member functions allow manipulating and accessing private data members from outside the class.
Member Function in C++AbhishekSaini132328Member functions are functions declared inside a class that can access and modify the class's data members. Member functions can be defined inside or outside the class definition. If defined outside, the scope resolution operator (::) must be used along with the class name and function name. Public member functions can be accessed from outside the class using the dot operator (.) on a class object.
Classes-and-Objects-in-C++.pdfismartshanker1This document discusses key concepts of classes and objects in C++ including access specifiers, constructors, destructors, mutators and accessors, inline functions, polymorphism through operator and function overloading, static class members, friend functions and classes, inheritance, and virtual functions. It provides examples of how these concepts are implemented in C++ code.
Class and objectProf. Dr. K. AdiseshaThis document provides an introduction to classes and objects in C++. It defines key concepts like class, object, member functions, access specifiers, and arrays of objects. It also discusses defining objects of a class, accessing class members, passing objects as function arguments, and the differences between classes and structures in C++.
Interview preparation for programming.pptxBilalHussainShah5Object-oriented programming (OOP) is a programming paradigm based on the concept of objects that contain data and code. The four pillars of OOP are data abstraction, encapsulation, inheritance, and polymorphism. Data abstraction hides internal details and provides essential information. Encapsulation bundles data with the methods that operate on that data, protecting data within a class. Inheritance allows new classes to inherit properties from existing classes. Polymorphism gives the same functions different meanings depending on usage.
Gauges are a Pump's Best Friend - Troubleshooting and Operations - v.07Brian GongolNo reputable doctor would try to conduct a basic physical exam without the help of a stethoscope. That's because the stethoscope is the best tool for gaining a basic "look" inside the key systems of the human body. Gauges perform a similar function for pumping systems, allowing technicians to "see" inside the pump without having to break anything open. Knowing what to do with the information gained takes practice and systemic thinking. This is a primer in how to do that.
Lessons learned when managing MySQL in the CloudIgor DonchovskiManaging MySQL in the cloud introduces a new set of challenges compared to traditional on-premises setups, from ensuring optimal performance to handling unexpected outages. In this article, we delve into covering topics such as performance tuning, cost-effective scalability, and maintaining high availability. We also explore the importance of monitoring, automation, and best practices for disaster recovery to minimize downtime.
How Engineering Model Making Brings Designs to Life.pdfMaadhu Creatives-Model Making CompanyThis PDF highlights how engineering model making helps turn designs into functional prototypes, aiding in visualization, testing, and refinement. It covers different types of models used in industries like architecture, automotive, and aerospace, emphasizing cost and time efficiency.
google_developer_group_ramdeobaba_university_EXPLORE_PPTJayeshShete1EXPLORE 6 EXCITING DOMAINS:
1. Machine Learning: Discover the world of AI and ML!
2. App Development: Build innovative mobile apps!
3. Competitive Programming: Enhance your coding skills!
4. Web Development: Create stunning web applications!
5. Blockchain: Uncover the power of decentralized tech!
6. Cloud Computing: Explore the world of cloud infrastructure!
Join us to unravel the unexplored, network with like-minded individuals, and dive into the world of tech!
15. Smart Cities Big Data, Civic Hackers, and the Quest for a New Utopia.pdfNgocThang9Smart Cities Big Data, Civic Hackers, and the Quest for a New Utopia
Taykon-Kalite belgeleriTAYKONKalite Politikamız
Taykon Çelik için kalite, hayallerinizi bizlerle paylaştığınız an başlar. Proje çiziminden detayların çözümüne, detayların çözümünden üretime, üretimden montaja, montajdan teslime hayallerinizin gerçekleştiğini gördüğünüz ana kadar geçen tüm aşamaları, çalışanları, tüm teknik donanım ve çevreyi içine alır KALİTE.
How to Make an RFID Door Lock System using ArduinoCircuitDigestLearn how to build an RFID-based door lock system using Arduino to enhance security with contactless access control.
US Patented ReGenX Generator, ReGen-X Quatum Motor EV Regenerative Accelerati...Thane Heins NOBEL PRIZE WINNING ENERGY RESEARCHERPreface: The ReGenX Generator innovation operates with a US Patented Frequency Dependent Load Current Delay which delays the creation and storage of created Electromagnetic Field Energy around the exterior of the generator coil. The result is the created and Time Delayed Electromagnetic Field Energy performs any magnitude of Positive Electro-Mechanical Work at infinite efficiency on the generator's Rotating Magnetic Field, increasing its Kinetic Energy and increasing the Kinetic Energy of an EV or ICE Vehicle to any magnitude without requiring any Externally Supplied Input Energy. In Electricity Generation applications the ReGenX Generator innovation now allows all electricity to be generated at infinite efficiency requiring zero Input Energy, zero Input Energy Cost, while producing zero Greenhouse Gas Emissions, zero Air Pollution and zero Nuclear Waste during the Electricity Generation Phase. In Electric Motor operation the ReGen-X Quantum Motor now allows any magnitude of Work to be performed with zero Electric Input Energy.
Demonstration Protocol: The demonstration protocol involves three prototypes;
1. Protytpe #1, demonstrates the ReGenX Generator's Load Current Time Delay when compared to the instantaneous Load Current Sine Wave for a Conventional Generator Coil.
2. In the Conventional Faraday Generator operation the created Electromagnetic Field Energy performs Negative Work at infinite efficiency and it reduces the Kinetic Energy of the system.
3. The Magnitude of the Negative Work / System Kinetic Energy Reduction (in Joules) is equal to the Magnitude of the created Electromagnetic Field Energy (also in Joules).
4. When the Conventional Faraday Generator is placed On-Load, Negative Work is performed and the speed of the system decreases according to Lenz's Law of Induction.
5. In order to maintain the System Speed and the Electric Power magnitude to the Loads, additional Input Power must be supplied to the Prime Mover and additional Mechanical Input Power must be supplied to the Generator's Drive Shaft.
6. For example, if 100 Watts of Electric Power is delivered to the Load by the Faraday Generator, an additional >100 Watts of Mechanical Input Power must be supplied to the Generator's Drive Shaft by the Prime Mover.
7. If 1 MW of Electric Power is delivered to the Load by the Faraday Generator, an additional >1 MW Watts of Mechanical Input Power must be supplied to the Generator's Drive Shaft by the Prime Mover.
8. Generally speaking the ratio is 2 Watts of Mechanical Input Power to every 1 Watt of Electric Output Power generated.
9. The increase in Drive Shaft Mechanical Input Power is provided by the Prime Mover and the Input Energy Source which powers the Prime Mover.
10. In the Heins ReGenX Generator operation the created and Time Delayed Electromagnetic Field Energy performs Positive Work at infinite efficiency and it increases the Kinetic Energy of the system.
Integration of Additive Manufacturing (AM) with IoT : A Smart Manufacturing A...ASHISHDESAI85Combining 3D printing with Internet of Things (IoT) enables the creation of smart, connected, and customizable objects that can monitor, control, and optimize their performance, potentially revolutionizing various industries. oT-enabled 3D printers can use sensors to monitor the quality of prints during the printing process. If any defects or deviations from the desired specifications are detected, the printer can adjust its parameters in real time to ensure that the final product meets the required standards.
Integration of Additive Manufacturing (AM) with IoT : A Smart Manufacturing A...ASHISHDESAI85
Class-١.pptx vbdbbdndgngngndngnnfndfnngn
1. structs that only contain variables represent the traditional non-object-oriented
programming world, as they can only hold data.
2. In the world of object-oriented programming, we often want our types to not
only hold data, but provide functions that work with the data as well.
In C++, this is typically done via the .
keyword defines a new user-defined type.
struct
class
3. the only significant difference is the public keyword in the class.
declaration does not declare any memory. It only defines what the
class looks like
DateClass today { 2020, 10, 14 }; // declare a variable of class DateClass
Defining a variable of a class we call it instantiating the class.
The variable is called an instance, of the class
A variable of a class type is also called an object.
Instantiating an object (e.g. DateClass today) allocates memory for that object.
Classes can also contain functions.
Functions defined inside of a class are
called member functions ( methods).
Member functions can be defined inside or
outside of the class definition.
4. Function member
When we call “today.print()”, we’re telling the
compiler to call the print() member function,
associated with the today object.
5. Using the “m_” prefix for member
variables helps distinguish member
variables from function parameters or
local variables inside member functions.
when we see an assignment to a
variable with the “m_” prefix we are
changing the state of the class.
Unlike function parameters or local
variables, which are declared within the
function, member variables are declared
in the class definition.
Rule!!!! Name your classes starting with
a capital letter.
6. A class that allocates memory will deallocate it before
being destroyed), but it’s not safe to assume a struct will.
we recommend using the struct keyword for data-only
structures, and the class keyword for defining objects that
require both data and functions to be bundled together.
Classes form the basis for Object-oriented programming
7. Access specifiers determine who has
access to the members that follow the
specifier.
1
public
2
private
3
protected
8. Public members are members of a struct or class that can be accessed from outside of
the struct or class.
Private members are members of a class that can only be accessed by other
members of the class.
All members of a struct are public members by default.
All members of a class are private members by default.
error!!!
9. In general, member variables are usually made private, and member functions are usually
made public.