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cobj: Polymorphism in Plain C

by GProssliner

cobj is a preprocessor based generator for interface based polymorphism

JavaScript – Prototypal Inheritance – Illustrated

by Mark Pelf

Tutorial on “Prototypal Inheritance” in JavaScript language

Father Prototype and Mother Constructor

by Martin ISDN

Solid JavaScript from facts to rules

Following object inheritance

by tonyt

namespace System{ public static class SystemExtensionMethods { public static string GetAncestry( this object target ) { return string.Join( " -> ", target.GetTypes().Reverse().Select( t => FormatName( t ) ).ToArray() ); } public...

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JavaScript – Prototypal Inheritance – Illustrated

by Mark Pelf

Tutorial on “Prototypal Inheritance” in JavaScript language

Secure External APIs with API Keys - and Keep the Villains at Bay

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How to secure external web APIs

Father Prototype and Mother Constructor

by Martin ISDN

Solid JavaScript from facts to rules

MTC.Host. A Infrastructure to host and manage Windows Services

by gfazzola

In this article I will explain the implementation of an infrastructure to host and manage windows services in a practical and interactive way.As a practical example of the solution will be implemented a dynamic ip update client of DucDNS

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Inheritance

About Inherit in C++

30 Jul 2011 by virusx1984

I create a class name "CExchangeRate". I got an error when I attempt to create a class name "CExchangeRates" which inherit from CList.The error description is: error C2512:'CExchangeRate': no appropriate default constructor available.Who can help me?Codes of...

About Inherit in C++

30 Jul 2011 by «_Superman_»

Add a default constructor to the CExchangeRate class - CExchangeRate(void);

accessability in CSharp

5 May 2014 by Rakesh Agarwal1984

Hi,please see the below code...public class A{ public void method1() { } public void method2() { } public void method3() { } public void method4() { }} public class B:A{}public class C:A{}now I want that only method1 and method2 should be accesible when...

accessability in CSharp

5 May 2014 by Sergey Alexandrovich Kryukov

Please start here: http://msdn.microsoft.com/en-us/library/ms173121.aspx[^],http://msdn.microsoft.com/en-us/library/wxh6fsc7.aspx[^].Better don't give more access than it's really needed. Every public can be replaced with internal if you are using this type only in the same assembly. And...

Additional set for overriden properties

8 Nov 2010 by DanielWehrle

Hi,I have an abstract class like:abstract class MyAbstractClass { public abstract String Name {get;} public void doBasicFunktion(){ //Do Something }}Now I want to implement the abstract class but have an additional private set for the property.class...

Additional set for overriden properties

8 Nov 2010 by E.F. Nijboer

But in MyClass you have { get; private set;} but there is only a get property defined.http://msdn.microsoft.com/en-us/library/yd3z1377.aspx[^]Good luck!

Additional set for overriden properties

14 Mar 2011 by Sajid Ahmed Shahsroha

In inheritance,if your base class is abstract,and that contains some abstract members,then all the abstract members must be overrided in derived class,but you are not allowed to change the signature of the abstract members in derived class

any practical example of overloading and overriding in java?

23 Apr 2014 by divinity technologies

can you please give any practical example of overloading and overriding?

any practical example of overloading and overriding in java?

24 Apr 2014 by Shah Parth P

a sum() function with different number of arguments is overloadingand the same function in base class and derived class is overriding.

any practical example of overloading and overriding in java?

24 Apr 2014 by Sanket Saxena

You should try Google first.Try the below link hope it helps.Practicle example

any practical example of overloading and overriding in java?

24 Apr 2014 by TorstenH.

http://docs.oracle.com/javase/tutorial/java/javaOO/methods.html[^]

Are interfaces a good alternative to multiple inheritance?

10 Mar 2014 by codechunky

I use VB.net and was curious to see why there is only support for single inheritance and whether or not interfaces are a way around this issues.Also are there any pros and cons to using multiple inheritance other then making code simpler?Thanks in advance

Are interfaces a good alternative to multiple inheritance?

10 Mar 2014 by OriginalGriff

Multiple inheritance is a pain.There is a lot of discussion of this out there: a quick Google[^] will give you over 100,000 hits.This is a good reason: http://stackoverflow.com/questions/225929/what-is-the-exact-problem-with-multiple-inheritance[^]

Base, derived and inheritance classes questions..

15 Feb 2015 by Member 10377426

If i have :class Car{// any fields here.} class BMW : Car{// any fields here.} void main(){BMW myBMW = new BMW(); // Case 1 -> it worksCar myBMW = new BMW(); // Case 2 -> it works} my question is Case 1 = Case 2 ? and what's difference and advantages. and which one...

Base, derived and inheritance classes questions..

15 Feb 2015 by Sergey Alexandrovich Kryukov

No, second case won't work. (Didn't you know that telling lie is a bad thing? Even if you lie to yourself. I know, of course this is nothing but your mistake, but you should be asking your questions more accurately.)The working two cases could beCar car1 = new BMW();Car car2 = new...

Base, derived and inheritance classes questions..

15 Feb 2015 by Zoltán Zörgő

You can access any object using a reference of it's ancerstor's (parent or above) type. Of course in this case you have access only to the fields defined at that level. That's the difference. BMW myBMW = new BMW();You can access all field defined in Object, Car and BMW.Car myCar = new...

Basic question about a derived class

17 Feb 2018 by User98743

This is my first derived class and I'm so confused. I don't understand how these two classes communicate. I'm expecting to have to initialize the base class and then initialize the derived class, because it looks that way int he example I'm looking at. I was hoping to create a derived class...

Basic question about a derived class

17 Feb 2018 by BillWoodruff

What's the point of deriving from a class, if you have to assign its members? Inheritance in C# is a compile-time "copying," or transmission, of structure. It is not a copying of an instance of a Class, and the current values of Fields and/or Properties of the Class instance, to another...

Basic question about a derived class

17 Feb 2018 by User 7407470

To access members from an inherited class you have to use the 'base' keyword: Provider = GetDbProvider(base.FilePath); // or just the member name: Provider = GetDbProvider(FilePath); In your code 'DbDataSource' is a (class) type, not an object you can use in the way you try to do....

C# abstract class implementing an interface

13 Dec 2016 by Er. Dinesh Sharma

Hi Experts,While I reading some blog I read one approach that is used by someone in interface and abstract class but I am not clearly understand that Please help me to find out that.1)What are benefits of inheriting the interface in abstract class?when we go for this approach?Is it good...

C# abstract class implementing an interface

13 Dec 2016 by CPallini

If the abstract classes merely reproduce the signature of the interface (as in your scenario) then it is nearly useless. Generally speaking, the abstract class does augment interface signature or provide some implementation. Such features make it useful.

C# abstract class implementing an interface

13 Dec 2016 by F-ES Sitecore

I wouldn't do such a thing unless IService was already defined and used elsewhere for some other purpose. If you want to take an existing interface and make an abstract class implement it that is fine I guess. As mentioned already though, if the interface is defined solely for the purpose of...

C# how can I count amount of C# programmers

19 Jan 2018 by Suren97

It's need me count amount of C# programmers through function.For example i have Developer arrays` Developer[] d = new Developer[5] { new FrontEndDeveloper("Hakob", "Hakobyan", 23, 2.5, "C#"), new BackEndDeveloper("Petros", "Petrosyan", 25, 5,...

C# how can I count amount of C# programmers

16 Jan 2018 by Thomas Daniels

You can keep track of a counter variable, which you increase when you come across a C# programmer while iterating over all items in the array. This would be your loop: int counter = 0; foreach (Developer item in d) { if (item.Language == "C#") // change 'Language' into the correct...

C# how can I count amount of C# programmers

19 Jan 2018 by Alex Schunk

Ahem... Console.WriteLine($"There are {d.Count(x=>x.Language=="C#")} C# programmers");

C# Multiple inheritance using sealed class

13 Aug 2013 by mikkythomeon

HI allI have created a library of code that uses graph searching, and would like to display a label for each node in the graph. The label control code was created by Microsoft, so it is a sealed unit. I would like the have it such that when a user clicks on the label, the node object...

C# Multiple inheritance using sealed class

13 Aug 2013 by Maarten Kools

Multiple inheritance is not supported by C#Why doesn't C# support multiple inheritance?[^]What you could do is wrap the AStarGridSearchItem class in AStarGridSearchLabel and implement an interface, e.g.interface IStarGridSearchItem{ void Foo();}class...

C# windows forms and user controls inheritance from VB forms and user controls.

20 Aug 2016 by m.r.m.40

Hi,I have some VB windows forms and user controls which they inherit from some base classes like BaseUserControl and BaseForm, every behavior that I want them to have I'll just add it into the Base classes, Here is a problem, one project inside my solution is written in C# and the forms and...

C# windows forms and user controls inheritance from VB forms and user controls.

20 Aug 2016 by OriginalGriff

They do get the inheritance, but you have to rebuild the VB project first, or the C# code can't "see" the changes.The C# dependency is on the DLL file it references, not on the source code for the project that creates the DLL - so that you can continue to work on the project while others...

C#, Editing inherited Form in Designer

16 Jun 2013 by Member 9856173

Hello,I am working in SharpDevelop. My question is how to inherit a form from another form? I inherited a form from a base class but designer shows following error:Failed to load designer. Check the source code for syntax errors and check if all references are...

C#, Editing inherited Form in Designer

16 Jun 2013 by Sergey Alexandrovich Kryukov

I suggest a special method for handling such unpleasant situations. This is not always related to form inheritance which itself presents no special issues. There are many ways in which one can screw up behavior in design mode.You should minimize the code executing with the designer. At...

C++0x Dynamic Message Passing

26 Nov 2010 by Achilleas Margaritis

C++0x Dynamic Message Passing Ala Objective-C

C++: Can ABSRACT CLASS constructor be called from its derived class constructor?

10 Dec 2012 by akchandra9

class ISample //Interface{public: ISample() { cout

C++: Can ABSRACT CLASS constructor be called from its derived class constructor?

10 Dec 2012 by Eugen Podsypalnikov

// which is inturn NOT possible!:)// But THIS IS COMPILING:)// Does it NOT mean that creating an instance of Interface / abstract class??The instance will be created implicitly, as a part of a Der-object.Hence any member of ISample/Base would be counted to sizeof(Der).But...

C++: Can ABSRACT CLASS constructor be called from its derived class constructor?

10 Dec 2012 by CPallini

A C++ abstract class is not, by default an interface, i.e. it may contain functionality implementation as well.As documentation[^] states:A class that contains at least one pure virtual function is considered an abstract class.that is it might contain method implementations as...

C++: Can ABSRACT CLASS constructor be called from its derived class constructor?

10 Dec 2012 by akchandra9

I'm still not clear as of how the constructor of an abstract class is getting called, contrary to the fact that we can NOT create an instance of an abstract class!Can someone tell me where i'm leading the wrong path!! Thank you.

C++: Can ABSRACT CLASS constructor be called from its derived class constructor?

17 Dec 2012 by Espen Harlinn

A constructor starts by invoking constructors for its bases, then constructors for its members, and then executing its code (if any)".Whether you class has virtual member functions, pure or otherwise, has nothing to do with this. One thing to be aware of though, is that it's impossible to...

C++: Can ABSRACT CLASS constructor be called from its derived class constructor?

18 Dec 2012 by Stefan_Lang

Some examples:// abstract base class using default constructor implicitelyclass IDefaultBase {public: // constructor not defined: // implicitely defines default constructor IDefaultBase::IDefaultBase() // destructor. Must be virtual! virtual ~IDefaultBase() {} //...

Calling objects of other class into main class

2 Jul 2022 by Shubham Guha_1007_IMCA1

Here - staff is the super class/base class. teacher,typist,officer are the sub class/derived class. regular and casual are the derived class of typist. I am facing an issue related to on calling the objects of different methods into the main...

Calling objects of other class into main class

2 Jul 2022 by OriginalGriff

Let's think about what your code does. We have two cars between us: my car (a black Mercedes) and your car (a green BMW). They have a lot of attributes in common: they both have four wheels, the both have a drivers seat, they both have a...

Can Business Logic Layer inherit Data Access Layer in n-tier architecture?

12 Feb 2012 by abi1988

Is that a better way to inherit the Data Access Layer(DAL) in Business Logic Layer(BLL) instead of creating an object of DAL in BLL in any Object oriented language? However the DAL uses only protected methods & properties so that it is not 'visible' to other layers. Is this breaking n-tier...

Can Business Logic Layer inherit Data Access Layer in n-tier architecture?

12 Feb 2012 by CDP1802

No, it's better not to do that. Inheritance creates a far too strong dependence between the application logic and the data access logic. Just try to estimate the work involved when you have to rewrite the data access classes when migrating to another database. Instead, the DAOs should expose an...

Can the the subclass remove properties from the parent class and how to do it ?

11 Jul 2020 by Ahmad Qassym

## the first example class quadriLateral: def __init__(self, a, b, c, d): self.side1=a self.side2=b self.side3=c self.side4=d def perimeter(self): p=self.side1 + self.side2 + self.side3 +...

Can the the subclass remove properties from the parent class and how to do it ?

11 Jul 2020 by OriginalGriff

You can ... ish. You can't actually remove parent properties of methods, but it is possible to "hide" them: Hiding Inherited Properties and Tasks in Derived Classes[^]

Can the the subclass remove properties from the parent class and how to do it ?

11 Jul 2020 by Richard MacCutchan

I do not think that is possible in Python, see 9. Classes — Python 3.7.8 documentation[^]. And why would you want to?

Can we use object of inherited form as a child of MDI Form ? I am getting errors.

30 Oct 2014 by PrasadKumar

Hello,I have inherited Form1 to Form2. I want to show Form2 as MDI child. But, while showing it throws "Error creating window handle.".Form1: Form{}Form2: Form1{}MdiForm: Form{ Form2 objForm = new Form2(); objForm.MdiParent = this; objForm.WindowState...

Can we use object of inherited form as a child of MDI Form ? I am getting errors.

30 Oct 2014 by OriginalGriff

From that little, we can;t really answer your problem.But there are a couple of things you can check.First, make sure that the MdiForm instance has the IsMDIContainer property set to true.Then, check exactly where you are executing the code you show above: if the MdiForm instance has not...

Can't access to action web API -route attribute inheritance - ASP.NET core controllers

19 Oct 2020 by thabet idris

I have three levels of route attribute inheritance : ClassA : ClassB public string Concat(..) [Route(..)] ClassB : ClassC [Route(..)] ClasseC: ControllerBase The problem is that service "Concact" in the ClasseA never working ! Here is my code...

Cannot access variables from superclass(constructor issues)

9 Dec 2013 by Member 10455211

Hello.Im a newbie and i really hope you guys can teach me a thing or two.I just want to access, values of certain variables, from the superclass. But my constructor is giving me issue:public class Calculator extends SwingFrame { SwingFrame testingobj = null; public...

Cannot access variables from superclass(constructor issues)

9 Dec 2013 by Richard MacCutchan

Since you have inherited from the Calculator class, you have also inherited all its public and protected variables. So, you can access them directly by name, anywhere inside your class. See this tutorial[^] for a fuller description of the rules on i nheritance.

Cast DataRow To Custom Class That Inherits DataRow

7 Aug 2013 by azinyama

Good day all!!!I have a DataTable that I'm looping through:foreach (DataRow r in table.Rows){}I also have a class that inherits DataRow:public class OutlookDataRow : System.Data.DataRow{ public OutlookGridRow OutlookRow { get; set } public...

Cast DataRow To Custom Class That Inherits DataRow

8 Aug 2013 by OriginalGriff

You can't - you cannot cast "up" the inheritance tree as the system would have to "invent" information for new items in the derived class. Since it doesn't have a clue what you added or what you want to do with it, it won't even try.The best solution is probably to define a constructor for...

classes c# and the relationships between them

11 Apr 2013 by TOMT12345

If I have 3 classes:1. Team2. Player3. balland each have a few types:backetball team, football team, hokcey team.basketball player, football player, hockey player.basketball, football, hockey puck.would i inlcuded these types as attributes in a class or would they have a...

classes c# and the relationships between them

11 Apr 2013 by CPallini

In my opinion both the alternatives are viable. You should investigate the usage scenarios to discover what is the cleanest implementation.

classes c# and the relationships between them

11 Apr 2013 by Sergey Alexandrovich Kryukov

Attributes in .NET is something completely different: please read on attributes to understand it: http://msdn.microsoft.com/en-us/library/z0w1kczw%28v=vs.110%29.aspx[^].What you call "attributes" are more like the UML meaning of this word (do you know UML?). In .NET, the attributes in UML...

cobj: Polymorphism in Plain C

7 Jun 2016 by GProssliner

cobj is a preprocessor based generator for interface based polymorphism

microcontroller

Component Interfaces to implement for showing in Toolbox

15 Dec 2010 by Alexander Dickbauer2

Which Interface(s) do i have to implement, that Visual Studio display's my component class in the Toolbox. Inheriting from System.ComponentModel.Component is not possible because this class inherits from another class so i have to do this with Interfaces.Maybe you could give me also some...

Composition always better than inheritance?

30 Aug 2011 by pkkalra1978

I have read several articles favoring composition over inheritance and I am convinced that in all those cases composition may be better idea. But does inheritance still has scenarios where it has a clear advantage over composition? Also do I have to implement all properties and methods again in...

Composition always better than inheritance?

30 Aug 2011 by Sergey Alexandrovich Kryukov

It's good to know that there are many idiots everywhere.There is one particular sort of extreme idiots who insist on statements in the form "{0} is always better then {1}" in cases when both "compared" approaches are not only very important, but when things are absolutely impossible without...

constructorA (Game game1) : base (game1) means what?

23 Mar 2011 by Selcuk Bor

see Subject title. I'm not entirely sure what this snippet of code entails. Why would we do this when we could simply instantiate the class that holds ConstructorA in the game's main class?Here is the tutorial code I am basing this off of.Audio Example[^]In section 1.

constructorA (Game game1) : base (game1) means what?

23 Mar 2011 by CPallini

That's the constructor of the derived class 'constructorA' with parameter of type 'Game' which in turn calls,in its initializer list, the base class ('base') constructor with same argument type, passing it its argument.Such a mechanism is often useful.

constructorA (Game game1) : base (game1) means what?

23 Mar 2011 by Wendelius

It calls the base classes constructor with the parameter passed to the derived class constructor. The advantage is for example if you have multiple derived classes and you want to use same constructor in each so you can define the logic in the base class.

constructorA (Game game1) : base (game1) means what?

23 Mar 2011 by Sergey Alexandrovich Kryukov

It means that a constructor of a class uses a constructor of its base class to pass a variable of the type Game before further initialization.—SA

Create UserControl with properties and events

26 Nov 2014 by Kit1624

I have an user controls which contains a datagridview. This user control inherits the datagridview. now I want to add some properities for this user control and some new events for it. How can I do that? Please, help me.

custom-controls

Data Grid Can't show the saved data about an object

9 May 2012 by obzajd

First of all, I'd like to thank all persons who read and try to help me.I've been working on a simple -obsolete- Mobile Company to add a line and save the information of a client in a Data Grid, so I've written the following:I've defined an line and defined the fields, constructors, and...

Decent Example of Inheritance, Polymorphism and Interfaces in C#

29 Sep 2012 by BrianHamilton

Hi,I was wondering if anyone knows of a C# program out there which demonstrates Inheritance and Polymorphism (and possibly Interfaces) in C#. I've looked at many books and while they give small coded examples, I can't seem to find a more 'real world' example. I get what these topics are...

Decent Example of Inheritance, Polymorphism and Interfaces in C#

29 Sep 2012 by OriginalGriff

The problem is that anything which "properly" demonstrates those is either going to be small - as you have probably seen - in order to highlight those specific features, or large (because it is real world and thus not trying to show you anything).You are probably best off looking a a book,...

Decent Example of Inheritance, Polymorphism and Interfaces in C#

29 Sep 2012 by Sm.Abdullah

Take a look over here.. may be helpful for youIntroduction to inheritance, polymorphism in C#[^]

Deleting an element in a vector by value

17 Nov 2015 by ikon95

I'm new to C++ and my question is how can I retrieve an object from the Flight to be compared to the input (flightNumber) in the main? How do I declare the attributes type in the main? The error message displays "invalid conversion of 'int' to 'Flight' in the second last line.class...

Deleting an element in a vector by value

18 Nov 2015 by CPallini

Try:void Agent::delete(int flightNumber){ vector::iterator ptr; for(ptr=flightList.begin();ptr!=flightList.end();ptr++) { if( ptr->FlightNumber == flightNumber) { flightList.erase(ptr); return; } } if ((ptr)...

Derive from a Silverlight Parent Page and extend the Child Page

13 Jul 2011 by Learning_abc

I have a Silverlight Parent Page which is like a master page. the child page derives from the parent page. This works fine. But if i want to add additional controls on the child page it is not possible. How can i achieve this functionality in Silverlight? Can anybody suggest some good workaround...

Derive from a Silverlight Parent Page and extend the Child Page

26 Sep 2011 by sasolanki007

Use prism for this. that will definitely help you with this.Prism[^]-Sagar Solanki

Differences between inheritance, importing namespaces and instantiating an object of the class

12 Mar 2014 by arunrk87

Inheritance, importing namespaces and instantiating an object of a class, with all these, I can access methods and properties of a class. Then what's the difference between them? Hoping for some great answers. Thanks!

Differences between inheritance, importing namespaces and instantiating an object of the class

13 Mar 2014 by OriginalGriff

We do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action.Try it yourself, you may find it...

Differences between inheritance, importing namespaces and instantiating an object of the class

13 Mar 2014 by Rakesh Meel

visit here..http://msdn.microsoft.com/en-us/library/527aztek.aspx[^]

Diving in OOP (Day 1) : Polymorphism and Inheritance (Early Binding/Compile Time Polymorphism)

15 Jul 2015 by Akhil Mittal

This article will cover almost every OOP concept that a novice/beginner developer hunt for, and not only beginners, the article’s purpose is to be helpful to experience professionals also who need to sometimes brush-up their concepts or who prepare for interviews.

Diving in OOP (Day 2): Polymorphism and Inheritance (Inheritance)

15 Jul 2015 by Akhil Mittal

Diving in OOP (Day 2):My article in the second part of the series will focus solely on inheritance concept in OOP

Diving in OOP (Day 3): Polymorphism and Inheritance (Dynamic Binding/Run Time Polymorphism)

9 Apr 2016 by Akhil Mittal

This part of the article series will focus more on run time polymorphism also called late binding.

Dynamic Class Inheritance in C#

4 Nov 2012 by tasinsahin

HiI googled but couldn't find a good answer, heres my question;Is it possible to derive classses in runtime?

Dynamic Class Inheritance in C#

4 Nov 2012 by Sergey Alexandrovich Kryukov

There is one way: you can create an assembly during run time, using System.Reflection.Emit, and, in this assembly, create a type with required features (it could be a class derived from some existing type) and later use it using System.Reflection — in in the same runtime. Please...

Edit controls in VS 2013 designer in a derived form

10 Jun 2016 by herrstress

Hello everybody,I'm using Visual Studio 2013 for a C# solution.Now I derived Form2 from Form1 within one project. In Form1 is a TableLayoutPanel containing several buttons in a row. all controls are set to protected.Why can I not edit the properties in the designer window?It works...

Edit controls in VS 2013 designer in a derived form

9 Jun 2016 by BillWoodruff

edit ... after consulting my notes ...MS clearly warns about using a Form that inherits from a Form with a TableLayoutPanel on it:The TableLayoutPanel control does not support visual inheritance in the Windows Forms Designer. A TableLayoutPanel control in a derived class appears as "locked"...

Edit controls in VS 2013 designer in a derived form

10 Jun 2016 by Philippe Mori

As you can see form answers and comments, this is an area in which you need to write your own code or do it differently as that scenario is not properly supported by the designer.Solution 1 explain the problem quite well. I will try to give some workaround that might help you.Depending...

EF not allowing tables with PK's with same name

13 Jan 2014 by Brady Kelly

I'm trying to query a data model built on EF, but any and all queries I run throw an exception that states The item with identity 'Id' already exists in the metadata collection.Googling this yields very little useful information, except that for some databases, like DB2, the data...

Father Prototype and Mother Constructor

2 Jan 2020 by Martin ISDN

Solid JavaScript from facts to rules

Finding the type of an object in C++?

13 Jan 2017 by YznIT

Hej :)How can i detect the class type of a specific object in c++ or What is the best way to find out which type the object is on my array ?For example what if i want to set a new age for all the cats only without knowing there positions(index) in the array.And please write the...

Finding the type of an object in C++?

13 Jan 2017 by Richard MacCutchan

C++ does not have any mechanism for detecting class types at runtime. You would need to add some extra properties to your classes. Alternatively there are some third-party libraries that may help; Google for "C++ reflection".Thanks to Carlo, I now know the correct answer.

Finding the type of an object in C++?

12 Jan 2017 by nv3

You have a couple of alternatives:(a) Adding you own type field to the base classclass Animal{public: int m_type; ...}That is not very object oriented and would be my last resort.(b) Use the run-time type information system of C++: Cat* pCat =...

Finding the type of an object in C++?

13 Jan 2017 by CPallini

Have also a look at typeid operator[^].

Following object inheritance

23 Jul 2010 by OriginalGriff

Sometimes, it helps to know the complete inheritance of an object or type in order to understand what can be done with it. This Tip presents a simple C# class to access the information

Following object inheritance

23 Jul 2010 by johannesnestler

OriginalGriff has made a nice and small class. But I don't think I would use this code in an application. Most times when I want to know about the inheritance chain of an object is while I'm coding. So a quick and nice (commandline?) tool would be a better fit, I think. The problem with...

Following Object Inheritance

25 Jul 2010 by Luc Pattyn

This is an alternative to "Following Object Inheritance"

Following object inheritance

31 Jul 2010 by tonyt

namespace System{ public static class SystemExtensionMethods { public static string GetAncestry( this object target ) { return string.Join( " -> ", target.GetTypes().Reverse().Select( t => FormatName( t ) ).ToArray() ); } public...

GlobalResources in Several Projects

23 Mar 2013 by RogerDeNIro

Hi,i need help for my problem.i will create an *.dll which includes all graphical resources. The WinForm Project get the *.dll is depends.Thats work well but when i change something on the *.dll it doesnt work anymore.in attachment the sample project.When somebody can...

GlobalResources in Several Projects

24 Mar 2013 by RogerDeNIro

@ThePhantomUpvoter:you are right, so here the project details, chane the archive and hope with the virustotal scan someone helps me

Help on error java display cannot find symbol

26 Mar 2018 by Member 13677146

I'm getting the error: Student.java:96: error: cannot find symbol s1.display(); ^ symbol: variable s1 location: class Student 1 error What I have tried: public class Student extends Person { private int studentId; private String major; ...

Help on error java display cannot find symbol

26 Mar 2018 by wseng

You define Student sl, but you using s1.

Help on java inheritance question?

27 Mar 2018 by Member 13677146

Create a new Employee Class Build a new Employee class(“Employee.java”). This class will be a sub-class of Person. So it will inherit all the properties of Person(FirstName, LastName, Address and Email). Also add 2 new properties, an employee id number and a salary. Create this class, make...

Help on java inheritance question?

27 Mar 2018 by CPallini

I see a problem in Employee constructor... :-) Replace Quote: public Student() { With public Employee() { And then of course complete the task: provide the constructor accepting all the parameters and the display method of the class Emplyee. Build them incrementally, exploiting the Person...

Hide base class property in derived class

31 Jan 2013 by vikas_pawar

This is my Base classpublic class BaseClass{ public string property1 { get; set; } public string property2 { get; set; } public string property3 { get; set; }}and this is my derived...