C# Exclusive Interview Questions and Answers (453) - Page 14

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For a given try, the catch block of class must be always after the catch block of _ class

NOTE: This is objective type question, Please click question title for correct answer.

public static void Main() { CA a; } What is "a" ?

a is a reference variable of type CA.

KeyPress event fires only for _____________

NOTE: This is objective type question, Please click question title for correct answer.

What is Shadowing?

When the method is defined as sealed in base class and not overrideable and
we need to provide different implementation for the same. This process
is known as shadowing.

MaskedTextBox properties are _________

NOTE: This is objective type question, Please click question title for correct answer.

___________ DialogBox : unless it is disposed we cannot work with the parent form

NOTE: This is objective type question, Please click question title for correct answer.

_______ DialogBox : It always remains on top of the owner form but while is is open we can also work with owner form

NOTE: This is objective type question, Please click question title for correct answer.

The MenuItems in the MenuStrip of are by default appended to the MenuStrip of _

NOTE: This is objective type question, Please click question title for correct answer.

What is the Order Of Execution of Destructors in Child and Parent Classes

Parent Class Destructor is Executed After Child Class Destructor.

Can we use base and this in the same Constructor

What is the advantage of inheritance

The advantages of Inheritance are Generalization,Extensibility and Reusability.

Protected members are accessible only within the class and in ____________ and are not accessible to non derived classes

derived classes

class CA { public int PubA; private int PriA; protected int ProA; public CA(int a, int b, int c) : this() { this.PriA = a; this.ProA = b; this.PubA = c; } } class CB : CA { public int pubB; public CB() : ____________ { } } Fill the above blank

base(0,0,0)

Child class destructor always executes before parent class destructor true/false

true

A reference variable of type parent can refer to an object of child class True / False

True.A reference variable of type parent can refer to an object of child
class because all the members which the reference variable can access
exist in memory when the object is of child class.

A reference variable of child can refer to an object of parent class True / False? Justify

False because the child class members that the reference variable can access do not exit in memory when the object is of parent class.

class CA { } class CB : CA { } class Program { static void Main() { CA a = new CB(); //Is it valid or not? } }

A reference variable of type parent can refer to an object of child
class because all the members which the reference variable can access
exist in memory when the object is of child class.