- Constructors are special member functions used to initialize objects when they are created. They are automatically called upon object creation and have the same name as the class. Constructors can be default, parameterized, or copy constructors.
- Destructors are also special member functions that perform cleanup actions when an object is destroyed, such as freeing memory. They are called automatically upon object destruction and have the same name as the class preceded by a tilde.
- Examples demonstrate default, parameterized, and copy constructors as well as destructors being defined and called for a class to properly initialize and cleanup objects.
CONSTRUCTOR AND DESTRUCTOR PPT BASED ON OOP SUBJECT ......FULLY CONCEPT EXPLAINED WITH SAMPLE PROGRAM IN IT .....FOR MORE SLIDES PLEASE FOLLOW ME ..... THANK YOU
CONSTRUCTOR AND DESTRUCTOR PPT BASED ON OOP SUBJECT ......FULLY CONCEPT EXPLAINED WITH SAMPLE PROGRAM IN IT .....FOR MORE SLIDES PLEASE FOLLOW ME ..... THANK YOU
Constructors, Destructors, call in parameterized Constructor, Multiple constructor in a class, Explicit/implicit call, Copy constructor, Dynamic Constructors and call in parameterized Constructor
What is a constructor?
Constructor is a method which gets executed automatically when we create or instantiate object of that class having constructor.
More Highlights of Constructor
A single class can have multiple constructors means we can have more than one constructor in a class. It is also called as overloaded constructor.
A benefit of using a constructor is that it guarantees that the object will go through a proper initialization before an object being used means we can pre-initialize some of the class variables with values before an object being used.
A constructor can be called another constructor by using "this" keyword. "this" keyword is the current instance of a class.
Slide 2:
What are the Constructor & destructor ?
Slide 3:
Characteristics of Constructor
Slide 4:
Special CHaracteristics of Destructor
Slide 5:
Similarities
Slide 6:
Dissimilarities
Slides 7:
Default Constructor with example
Slide 8:
Parameterized Constructor
Slide 9:
Copy Constructor with example
Slide 10:
Destructor
Slide 11:
Bibliography
Constructors, Destructors, call in parameterized Constructor, Multiple constructor in a class, Explicit/implicit call, Copy constructor, Dynamic Constructors and call in parameterized Constructor
What is a constructor?
Constructor is a method which gets executed automatically when we create or instantiate object of that class having constructor.
More Highlights of Constructor
A single class can have multiple constructors means we can have more than one constructor in a class. It is also called as overloaded constructor.
A benefit of using a constructor is that it guarantees that the object will go through a proper initialization before an object being used means we can pre-initialize some of the class variables with values before an object being used.
A constructor can be called another constructor by using "this" keyword. "this" keyword is the current instance of a class.
Slide 2:
What are the Constructor & destructor ?
Slide 3:
Characteristics of Constructor
Slide 4:
Special CHaracteristics of Destructor
Slide 5:
Similarities
Slide 6:
Dissimilarities
Slides 7:
Default Constructor with example
Slide 8:
Parameterized Constructor
Slide 9:
Copy Constructor with example
Slide 10:
Destructor
Slide 11:
Bibliography
4GMAT Diagnostic Test Q14 - Problem Solving - Coordinate Geometry4gmatprep
This one is a problem solving question in coordinate geometry. The questions tests your understanding to determine the x and y intercept of a line and find the area of a triangle formed between the line and the coordinate axes.
What is the area of the triangle formed by the coordinate axes and the line L whose equation is 2x - 3y = 6?
A) 6
B) 12
C) √(13)
D) 3
E) 7.5
Constructors are special class functions which performs initialization of every object. The Compiler calls the Constructor whenever an object is created. Destructor on the other hand is used to destroy the class object.
Experience our free, in-depth three-part Tendenci Platform Corporate Membership Management workshop series! In Session 1 on May 14th, 2024, we began with an Introduction and Setup, mastering the configuration of your Corporate Membership Module settings to establish membership types, applications, and more. Then, on May 16th, 2024, in Session 2, we focused on binding individual members to a Corporate Membership and Corporate Reps, teaching you how to add individual members and assign Corporate Representatives to manage dues, renewals, and associated members. Finally, on May 28th, 2024, in Session 3, we covered questions and concerns, addressing any queries or issues you may have.
For more Tendenci AMS events, check out www.tendenci.com/events
Designing for Privacy in Amazon Web ServicesKrzysztofKkol1
Data privacy is one of the most critical issues that businesses face. This presentation shares insights on the principles and best practices for ensuring the resilience and security of your workload.
Drawing on a real-life project from the HR industry, the various challenges will be demonstrated: data protection, self-healing, business continuity, security, and transparency of data processing. This systematized approach allowed to create a secure AWS cloud infrastructure that not only met strict compliance rules but also exceeded the client's expectations.
Quarkus Hidden and Forbidden ExtensionsMax Andersen
Quarkus has a vast extension ecosystem and is known for its subsonic and subatomic feature set. Some of these features are not as well known, and some extensions are less talked about, but that does not make them less interesting - quite the opposite.
Come join this talk to see some tips and tricks for using Quarkus and some of the lesser known features, extensions and development techniques.
Check out the webinar slides to learn more about how XfilesPro transforms Salesforce document management by leveraging its world-class applications. For more details, please connect with sales@xfilespro.com
If you want to watch the on-demand webinar, please click here: https://www.xfilespro.com/webinars/salesforce-document-management-2-0-smarter-faster-better/
Globus Compute wth IRI Workflows - GlobusWorld 2024Globus
As part of the DOE Integrated Research Infrastructure (IRI) program, NERSC at Lawrence Berkeley National Lab and ALCF at Argonne National Lab are working closely with General Atomics on accelerating the computing requirements of the DIII-D experiment. As part of the work the team is investigating ways to speedup the time to solution for many different parts of the DIII-D workflow including how they run jobs on HPC systems. One of these routes is looking at Globus Compute as a way to replace the current method for managing tasks and we describe a brief proof of concept showing how Globus Compute could help to schedule jobs and be a tool to connect compute at different facilities.
Prosigns: Transforming Business with Tailored Technology SolutionsProsigns
Unlocking Business Potential: Tailored Technology Solutions by Prosigns
Discover how Prosigns, a leading technology solutions provider, partners with businesses to drive innovation and success. Our presentation showcases our comprehensive range of services, including custom software development, web and mobile app development, AI & ML solutions, blockchain integration, DevOps services, and Microsoft Dynamics 365 support.
Custom Software Development: Prosigns specializes in creating bespoke software solutions that cater to your unique business needs. Our team of experts works closely with you to understand your requirements and deliver tailor-made software that enhances efficiency and drives growth.
Web and Mobile App Development: From responsive websites to intuitive mobile applications, Prosigns develops cutting-edge solutions that engage users and deliver seamless experiences across devices.
AI & ML Solutions: Harnessing the power of Artificial Intelligence and Machine Learning, Prosigns provides smart solutions that automate processes, provide valuable insights, and drive informed decision-making.
Blockchain Integration: Prosigns offers comprehensive blockchain solutions, including development, integration, and consulting services, enabling businesses to leverage blockchain technology for enhanced security, transparency, and efficiency.
DevOps Services: Prosigns' DevOps services streamline development and operations processes, ensuring faster and more reliable software delivery through automation and continuous integration.
Microsoft Dynamics 365 Support: Prosigns provides comprehensive support and maintenance services for Microsoft Dynamics 365, ensuring your system is always up-to-date, secure, and running smoothly.
Learn how our collaborative approach and dedication to excellence help businesses achieve their goals and stay ahead in today's digital landscape. From concept to deployment, Prosigns is your trusted partner for transforming ideas into reality and unlocking the full potential of your business.
Join us on a journey of innovation and growth. Let's partner for success with Prosigns.
Your Digital Assistant.
Making complex approach simple. Straightforward process saves time. No more waiting to connect with people that matter to you. Safety first is not a cliché - Securely protect information in cloud storage to prevent any third party from accessing data.
Would you rather make your visitors feel burdened by making them wait? Or choose VizMan for a stress-free experience? VizMan is an automated visitor management system that works for any industries not limited to factories, societies, government institutes, and warehouses. A new age contactless way of logging information of visitors, employees, packages, and vehicles. VizMan is a digital logbook so it deters unnecessary use of paper or space since there is no requirement of bundles of registers that is left to collect dust in a corner of a room. Visitor’s essential details, helps in scheduling meetings for visitors and employees, and assists in supervising the attendance of the employees. With VizMan, visitors don’t need to wait for hours in long queues. VizMan handles visitors with the value they deserve because we know time is important to you.
Feasible Features
One Subscription, Four Modules – Admin, Employee, Receptionist, and Gatekeeper ensures confidentiality and prevents data from being manipulated
User Friendly – can be easily used on Android, iOS, and Web Interface
Multiple Accessibility – Log in through any device from any place at any time
One app for all industries – a Visitor Management System that works for any organisation.
Stress-free Sign-up
Visitor is registered and checked-in by the Receptionist
Host gets a notification, where they opt to Approve the meeting
Host notifies the Receptionist of the end of the meeting
Visitor is checked-out by the Receptionist
Host enters notes and remarks of the meeting
Customizable Components
Scheduling Meetings – Host can invite visitors for meetings and also approve, reject and reschedule meetings
Single/Bulk invites – Invitations can be sent individually to a visitor or collectively to many visitors
VIP Visitors – Additional security of data for VIP visitors to avoid misuse of information
Courier Management – Keeps a check on deliveries like commodities being delivered in and out of establishments
Alerts & Notifications – Get notified on SMS, email, and application
Parking Management – Manage availability of parking space
Individual log-in – Every user has their own log-in id
Visitor/Meeting Analytics – Evaluate notes and remarks of the meeting stored in the system
Visitor Management System is a secure and user friendly database manager that records, filters, tracks the visitors to your organization.
"Secure Your Premises with VizMan (VMS) – Get It Now"
Gamify Your Mind; The Secret Sauce to Delivering Success, Continuously Improv...Shahin Sheidaei
Games are powerful teaching tools, fostering hands-on engagement and fun. But they require careful consideration to succeed. Join me to explore factors in running and selecting games, ensuring they serve as effective teaching tools. Learn to maintain focus on learning objectives while playing, and how to measure the ROI of gaming in education. Discover strategies for pitching gaming to leadership. This session offers insights, tips, and examples for coaches, team leads, and enterprise leaders seeking to teach from simple to complex concepts.
Paketo Buildpacks : la meilleure façon de construire des images OCI? DevopsDa...Anthony Dahanne
Les Buildpacks existent depuis plus de 10 ans ! D’abord, ils étaient utilisés pour détecter et construire une application avant de la déployer sur certains PaaS. Ensuite, nous avons pu créer des images Docker (OCI) avec leur dernière génération, les Cloud Native Buildpacks (CNCF en incubation). Sont-ils une bonne alternative au Dockerfile ? Que sont les buildpacks Paketo ? Quelles communautés les soutiennent et comment ?
Venez le découvrir lors de cette session ignite
Understanding Globus Data Transfers with NetSageGlobus
NetSage is an open privacy-aware network measurement, analysis, and visualization service designed to help end-users visualize and reason about large data transfers. NetSage traditionally has used a combination of passive measurements, including SNMP and flow data, as well as active measurements, mainly perfSONAR, to provide longitudinal network performance data visualization. It has been deployed by dozens of networks world wide, and is supported domestically by the Engagement and Performance Operations Center (EPOC), NSF #2328479. We have recently expanded the NetSage data sources to include logs for Globus data transfers, following the same privacy-preserving approach as for Flow data. Using the logs for the Texas Advanced Computing Center (TACC) as an example, this talk will walk through several different example use cases that NetSage can answer, including: Who is using Globus to share data with my institution, and what kind of performance are they able to achieve? How many transfers has Globus supported for us? Which sites are we sharing the most data with, and how is that changing over time? How is my site using Globus to move data internally, and what kind of performance do we see for those transfers? What percentage of data transfers at my institution used Globus, and how did the overall data transfer performance compare to the Globus users?
How Recreation Management Software Can Streamline Your Operations.pptxwottaspaceseo
Recreation management software streamlines operations by automating key tasks such as scheduling, registration, and payment processing, reducing manual workload and errors. It provides centralized management of facilities, classes, and events, ensuring efficient resource allocation and facility usage. The software offers user-friendly online portals for easy access to bookings and program information, enhancing customer experience. Real-time reporting and data analytics deliver insights into attendance and preferences, aiding in strategic decision-making. Additionally, effective communication tools keep participants and staff informed with timely updates. Overall, recreation management software enhances efficiency, improves service delivery, and boosts customer satisfaction.
SOCRadar Research Team: Latest Activities of IntelBrokerSOCRadar
The European Union Agency for Law Enforcement Cooperation (Europol) has suffered an alleged data breach after a notorious threat actor claimed to have exfiltrated data from its systems. Infamous data leaker IntelBroker posted on the even more infamous BreachForums hacking forum, saying that Europol suffered a data breach this month.
The alleged breach affected Europol agencies CCSE, EC3, Europol Platform for Experts, Law Enforcement Forum, and SIRIUS. Infiltration of these entities can disrupt ongoing investigations and compromise sensitive intelligence shared among international law enforcement agencies.
However, this is neither the first nor the last activity of IntekBroker. We have compiled for you what happened in the last few days. To track such hacker activities on dark web sources like hacker forums, private Telegram channels, and other hidden platforms where cyber threats often originate, you can check SOCRadar’s Dark Web News.
Stay Informed on Threat Actors’ Activity on the Dark Web with SOCRadar!
Code reviews are vital for ensuring good code quality. They serve as one of our last lines of defense against bugs and subpar code reaching production.
Yet, they often turn into annoying tasks riddled with frustration, hostility, unclear feedback and lack of standards. How can we improve this crucial process?
In this session we will cover:
- The Art of Effective Code Reviews
- Streamlining the Review Process
- Elevating Reviews with Automated Tools
By the end of this presentation, you'll have the knowledge on how to organize and improve your code review proces
How to Position Your Globus Data Portal for Success Ten Good PracticesGlobus
Science gateways allow science and engineering communities to access shared data, software, computing services, and instruments. Science gateways have gained a lot of traction in the last twenty years, as evidenced by projects such as the Science Gateways Community Institute (SGCI) and the Center of Excellence on Science Gateways (SGX3) in the US, The Australian Research Data Commons (ARDC) and its platforms in Australia, and the projects around Virtual Research Environments in Europe. A few mature frameworks have evolved with their different strengths and foci and have been taken up by a larger community such as the Globus Data Portal, Hubzero, Tapis, and Galaxy. However, even when gateways are built on successful frameworks, they continue to face the challenges of ongoing maintenance costs and how to meet the ever-expanding needs of the community they serve with enhanced features. It is not uncommon that gateways with compelling use cases are nonetheless unable to get past the prototype phase and become a full production service, or if they do, they don't survive more than a couple of years. While there is no guaranteed pathway to success, it seems likely that for any gateway there is a need for a strong community and/or solid funding streams to create and sustain its success. With over twenty years of examples to draw from, this presentation goes into detail for ten factors common to successful and enduring gateways that effectively serve as best practices for any new or developing gateway.
Large Language Models and the End of ProgrammingMatt Welsh
Talk by Matt Welsh at Craft Conference 2024 on the impact that Large Language Models will have on the future of software development. In this talk, I discuss the ways in which LLMs will impact the software industry, from replacing human software developers with AI, to replacing conventional software with models that perform reasoning, computation, and problem-solving.
In software engineering, the right architecture is essential for robust, scalable platforms. Wix has undergone a pivotal shift from event sourcing to a CRUD-based model for its microservices. This talk will chart the course of this pivotal journey.
Event sourcing, which records state changes as immutable events, provided robust auditing and "time travel" debugging for Wix Stores' microservices. Despite its benefits, the complexity it introduced in state management slowed development. Wix responded by adopting a simpler, unified CRUD model. This talk will explore the challenges of event sourcing and the advantages of Wix's new "CRUD on steroids" approach, which streamlines API integration and domain event management while preserving data integrity and system resilience.
Participants will gain valuable insights into Wix's strategies for ensuring atomicity in database updates and event production, as well as caching, materialization, and performance optimization techniques within a distributed system.
Join us to discover how Wix has mastered the art of balancing simplicity and extensibility, and learn how the re-adoption of the modest CRUD has turbocharged their development velocity, resilience, and scalability in a high-growth environment.
How Does XfilesPro Ensure Security While Sharing Documents in Salesforce?XfilesPro
Worried about document security while sharing them in Salesforce? Fret no more! Here are the top-notch security standards XfilesPro upholds to ensure strong security for your Salesforce documents while sharing with internal or external people.
To learn more, read the blog: https://www.xfilespro.com/how-does-xfilespro-make-document-sharing-secure-and-seamless-in-salesforce/
First Steps with Globus Compute Multi-User EndpointsGlobus
In this presentation we will share our experiences around getting started with the Globus Compute multi-user endpoint. Working with the Pharmacology group at the University of Auckland, we have previously written an application using Globus Compute that can offload computationally expensive steps in the researcher's workflows, which they wish to manage from their familiar Windows environments, onto the NeSI (New Zealand eScience Infrastructure) cluster. Some of the challenges we have encountered were that each researcher had to set up and manage their own single-user globus compute endpoint and that the workloads had varying resource requirements (CPUs, memory and wall time) between different runs. We hope that the multi-user endpoint will help to address these challenges and share an update on our progress here.
3. Ever thought that what kind of
problems can an object create if it’s
not initialised.
It’s similar to giving your vehicle the
final gear just during the startup.
4. The Object
What if user
didn’t assign me
any value initially
(by chance he
forget) and finally
ask me my value?
I’ll be helpless.
So to make a
program
robust the
object should
be initialised
every time.
And in class we do this by constructors...
5. • Well! It is a special member function
that is used for initialization of objects
(data members).
• A constructor function is called
whenever an object is created.
• Constructors are also called when an
object is created as a part of another
object.
What is “ Constructor ” !!!
6. </>
Initialising a Constructor:
/* Outside the Class */
class twelfth{
int total; //Total twelfth of student
char sec; //Section of the class
public:
twelfth(void); //Constructor Function Declared
---
---
};
//Constructor Function Defined
twelfth :: twelfth( ){
total=50;
sec=‘A’;
}
7. Initialising a Constructor:
</> /* Outside the Class */
class twelfth{
int total; //Total twelfth of student
char sec; //Section of the class
public:
twelfth( ){ //Function Declared
total=50;
sec=‘A’;
}
8. Constructor Functions have “same
name” as that of class name.
They do not have return types, not even
void.
May or may not have parameters.
C++ has default constructors that are
called whenever a class is declared even
if no function with the same name exists
Some of it’s characteristics
Mind It!
9. They should be declared in “public
section”.
They are invoked “automatically” when
objects are created.
We cannot call it for the already
constructed object.
10. Default Constructor
• Because in C++ default constructor is there.
• This constructor has no arguments in it.
• Default Constructor is also called as no
argument constructor.
So you often didn’t
provide any argument to
constructor, but still
compiler didn’t bother to
show any error! How?
11. </>
Example for default constructor:
class person {
int DOB;
public:
person(){
cout<<“Contructor called";
}
};
void main(){
person obj;
getch();
}
12. Parameterised Constructor
• A parameterized constructor is just one that
has parameters specified in it.
• We can pass the arguments to constructor
function when object are created.
• A constructor that can take arguments are
called parameterized constructors.
13. </>
Example of a Parameterised Constructor:
class person{
int DOB;
public:
Creature(int year){ //Parameterized Constructor
DOB = year;
}
};
14. Copy Constructor
• Copy Constructor is used to declare and
initialize an object from another object.
• For example the statement:
abc c2(c1);
would define the object c2 and at the same
time initialize it to the value of c1.
• The process of initializing through a copy
constructor is known as copy initialization.
15. </>
Example of a Copy Constructor:
class abc{
int a, b;
public:
abc(int x, int y){
a = x;
b = y;
}
abc::abc(abc &p){
a = p.a;
b = p.b;
}
void showdata(){
cout << a << " " << b << endl;
}
};
continued…
17. Default Constructor
• Default argument is an argument to a
function that a programmer is not required
to specify.
• C++ allow the programmer to specify
default arguments that always have a value,
even if one is not specified when calling the
function.
• For example, in the following function
declaration:
int MyFunc(int a,int b,int c=12);
18. • The programmer may call this function in
two ways:
result = MyFunc(1, 2, 3);
result = MyFunc(1, 2);
• In the first case the value for the argument
called c is specified as normal. In the second
one, the argument is omitted, and the
default value of 12 will be used instead.
• It is possible to define constructors with
default arguments.
19. Something Important
• Automatically called when an object is
created.
• We can define our own constructors
• A constructor takes the same name as the
class name.
• We can’t define a constructor in the
private section.
20. • No return type is specified for a
constructor.
• Constructor must be defined in the
public.
• Overloading of constructors is possible.
• If an object is copied from another
object then the copy constructor is
called.
22. You won’t ever
want that your
program's
variable taking all
your hard disk
space.
In case if you want
that the program
should end up after
destroying the data
then you’ll have to
use destructors
23. •Destructors are special member
functions.
• Release dynamic allocated memory.
• Destructors are automatically named.
• Takes the same name of class name.
What is “ Destructor ” !!!
24. Syntax of Destructor
Well there is nothing to think about
the syntax of destructor if you are
familiar with the constructors.
Just add a tilde (~).
~class-name();
25. Something Important
• Destructors take the same name as
class name.
• As in constructors, destructors are also
defined in the public.
• Destructors cannot be overloaded.
• No return type is specified.
26. </>
Example of a Destructors:
class person{
int DOB;
public:
person(){
DOB=1998;
cout<<"constructor called"<<endl;
}
~person(){
cout<<"destructor called"<<endl;
}
};
continued…
27. void main(){
cout<<“n Main startn"<<endl;
{
person obj;
}
cout<<“n Main End"<<endl;
getch();
}
continued…
</>
28. </>
Another example of destructor:
#include<iostream.h>
#include<stdio.h>
class Line{
public:
void setLength(double len);
double getLength(void);
Line(); // This is the constructor declaration
~Line(); // This is the destructor: declaration
private:
double length;
};
continued…
29. // Member functions definitions including constructor
Line::Line(void){
cout << "Object is being created" << endl;
}
Line::~Line(void){
cout << "Object is being deleted" << endl;
}
void Line::setLength(double len){
length = len;
}
double Line::getLength(void){
return length;
}
// Main function for the program
</>
continued…
30. void main(){
Line line;
//Set line’s length
line.setLength(6.0);
cout<<"Length of line:"<<line.getLength()<<endl;
getch();
}
</>
continued…