Can base constructors can be private?

1 Answer

Answer :

Yes

Related questions

Description : If a base class has a number of overloaded constructors, and an inheriting class has a number of overloaded constructors; can you enforce a call from an inherited constructor to a specific base constructor?

Last Answer : Yes, just place a colon, and then keyword base (parameter list to invoke the appropriate constructor) in the overloaded constructor definition inside the inherited class.

Description : In terms of constructors, what is the difference between: public MyDerived() : base() an public MyDerived() in a child class?

Last Answer : Nothing

Description : If a base class has a number of overloaded constructors, and an inheriting class has a number of overloaded constructors; can you enforce a call from an inherited constructor to a specific base constructor?

Last Answer : Yes, just place a colon, and then keyword base (parameter list to invoke the appropriate constructor) in the overloaded constructor definition inside the inherited class.

Description : If a base class has a bunch of overloaded constructors, and an inherited class has another bunch of overloaded constructors, can you enforce a call from an inherited constructor to an arbitrary base constructor? 

Last Answer : Yes, just place a colon, and then keyword base (parameter list to invoke the appropriate constructor) in the overloaded constructor definition inside the inherited class. 

Description : Explain what constructors and destructors are and describe what they are used for.

Last Answer : The constructor is the method that initializes a class or structure and is run when a type is first instantiated. It is used to set default values and perform other tasks required by the class. ... reclaimed by garbage collection. It contains any code that is required for cleanup of the object. 

Description : C# provides a default constructor for me. I write a constructor that takes a string as a parameter, but want to keep the no parameter one. How many constructors should I write? 

Last Answer : Two. Once you write at least one constructor, C# cancels the freebie constructor, and now you have to write one yourself, even if there’s no implementation in it.

Description : Define what are constructors and destructors?

Last Answer : Constructors and destructors are special methods. Constructors and destructors are special methods for every class. Each class has its own constructor and destructor and are called automatically when the ... access the class and the destructor destroys them when the objects are not required anymore.

Description : Can a class or a struct have multiple constructors?

Last Answer : Yes, a class or a struct can have multiple constructors. Constructors in C# can be overloaded.

Description : Can you have parameters for static constructors?

Last Answer : No, static constructors cannot have parameters.

Description : Briefly explain the difference between Public (public), Friend (internal), and Private (private) access levels as they apply to user-defined types and members.

Last Answer : In user-defined types, Public (public) classes can be instantiated by any element of the application. Friend (internal) classes can be instantiated only by members of the same assembly, and Private ( ... the same assembly, and Private (private) members can be accessed only from within the type. 

Description : What’s the difference between private and shared assembly? 

Last Answer : Answer: Privateassembly is used inside an application only and does not have to be identified by a strong name. Shared assembly can be used by multiple applications and has to have a strong name.

Description : Are private class-level variables inherited? 

Last Answer : Yes, but they are not accessible. Although they are not visible or accessible via the class interface, they are inherited.

Description : Where are private assemblies stored? 

Last Answer : Same folder as exe 

Description : Can the members of an interface be private?

Last Answer : No. 

Description : What is private accessibility?

Last Answer : Access is restricted to within the containing class. 

Description : Are private class-level variables inherited? 

Last Answer : Yes, but they are not accessible. Although they are not visible or accessible via the class interface, they are inherited.

Description : Can you override private virtual methods? 

Last Answer : No, moreover, you cannot access private methods in inherited classes, have to be protected in the base class to allow any sort of access. 

Description : Are private class-level variables inherited? 

Last Answer : Yes, but they are not accessible, so looking at it you can honestly say that they are not inherited. But they are.

Description : Can you override private virtual methods?

Last Answer : No. Private methods are not accessible outside the class.

Description : Can you override private virtual methods?

Last Answer : No, private methods are not accessible outside the class.

Description : Can we override the private virtual method in C#?

Last Answer : No. We can’t override private virtual methods as it is not accessible outside the class.

Description : How do you enable your application to use .NET base class library members without referencing their fully qualified names?

Last Answer : Use the Imports keyword (Visual Basic .NET) or the using keyword (Visual C#) to make a .NET Framework namespace visible to your application. 

Description : How do you refer to a member in the base class?

Last Answer : To refer to a member in the base class use:return base.NameOfMethod(). 

Description : Can properties hide base class members of the same name?

Last Answer : Yes

Description : Can you prevent your class from being inherited and becoming a base class for some other classes?

Last Answer : Yes, that’s what keyword sealed in the class definition is for. The developer trying to derive from your class will get a message: cannot inherit from Sealed class WhateverBaseClassName. It’s the same concept as final class in Java.

Description : Define what is a base class?

Last Answer : A class declaration may specify a base class by following the class name with a colon and the name of the base class. omitting a base class specification is the same as deriving from type object.

Description : Are constructors inherited? Can a subclass call the parent's class constructor? When?

Last Answer : Ans. You cannot inherit a constructor. That is, you cannot create a instance of a subclass using a constructor of one of it's superclasses. One of the main reasons is because ... developer the ability to override a superclasses constructor you would erode the encapsulation abilities of the language.

Description : Can constructors be synchronized in Java ?

Last Answer : Ans. No. Java doesn't allow multi thread access to object constructors so synchronization is not even needed.

Description : Virtual constructor: Constructors cannot be virtual. Declaring a constructor as a virtual function is a syntax error. Does c++ support multilevel and multiple inheritance?

Last Answer : Yes.

Description : What is virtual constructors/destructors?

Last Answer : Answer1 Virtual destructors: If an object (with a non-virtual destructor) is destroyed explicitly by applying the delete operator to a base-class pointer to the object, the base-class destructor ... base-class pointer to a derived-class object, the destructor for the appropriate class is called.

Description : Which of the following characteristics of constructor are true. i) They should be declared in the public section. ii) They are invoked automatically when the objects are created. iii) They do not have return type and void also. ... and v C) Only i, iii, iv and v D) All i, ii, iii, iv and v

Last Answer : D) All i, ii, iii, iv and v

Description : Explain the types of constructors in Java with suitable example.

Last Answer : Constructors are used to initialize an object as soon as it is created. Every time an object is created using the new' keyword, a constructor is invoked. If no constructor is defined in a class, java compiler creates ... of First Second Rectangle : "+ (r1.length*r1.breadth)); } }

Description : Explain parameterized constructors with example.

Last Answer : A constructor that can take arguments is known as parameterized constructor. In some applications, it may be necessary to initialize the various data members of different objects with different values when they ... as an argument. Member function put displays the value of data member m .

Description : Explain multiple constructors in a class with suitable example. 

Last Answer : Multiple constructors in a class means a class can contain more than one constructor. This is also known as constructor overloading. All constructors are defined with the same name as the class they belong to. All the ... default constructor integer(int a, int b) { m = a; n = b; cout

Description : What si the difference between interface and abstractclass Select Answer:  1. interface contain only methods  2. we can't declare a variable for interface  3. interface contain only events  4. None  5. All

Last Answer : Ans : 2 The only Difference between Interface and Abstract class is we can declare a variable in abstract class but we can't declare in variable interface

Description : What is the lifespan for items stored in ViewState? Select Answer:  1. Item stored in ViewState exist for the life of the current page  2. Item stored in ViewState exist for the life ... of the current Applicaiton  4. Item stored in ViewState exist for the life of the current configuration

Last Answer : 1. Item stored in ViewState exist for the life of the current page AS any web application works on request and response basis ,so on every post backs, The data in control gets lost. To retain page ... control with data. The life cycle of the view state exist for life of current running page only. 

Description : Which one of the following tools is used to view the metadata information contained in a .NET assembly? Select Answer:  1. al.exe  2. ilasm.exe  3. vbx.exe  4. csc.exe  5. ildasm.exe

Last Answer :  5. ildasm.exe

Description : How would you ensure that all relevant registry entries were removed in the event that installation of your application failed?

Last Answer : You can ensure that registry entries are removed, as well as perform any other “clean-up” tasks, by creating an Installer class and writing the appropriate code in the Rollback event handler. Then create a new Custom Action and set the InstallerClass, and EntryPoint properties to appropriate values.

Description : Describe a general strategy for creating a setup project that terminates installation if a specific file is not already installed on the target machine.

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Description : What is a shared assembly? How would you create one?

Last Answer : An assembly is an assembly of which only a single copy is installed per machine. This copy can be shared by multiple applications. To make an assembly a shared assembly, you must first assign it a strong name, and then install it to the global assembly cache.

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Description : Explain how to convert data in legacy code page formats to the Unicode format.

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