C# Programming - Delegates

Why C# Programming Delegates?

In this section you can learn and practice C# Programming Questions based on "Delegates" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

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IndiaBIX provides you lots of fully solved C# Programming (Delegates) questions and answers with Explanation. Solved examples with detailed answer description, explanation are given and it would be easy to understand. All students, freshers can download C# Programming Delegates quiz questions with answers as PDF files and eBooks.

Where can I get C# Programming Delegates Interview Questions and Answers (objective type, multiple choice)?

Here you can find objective type C# Programming Delegates questions and answers for interview and entrance examination. Multiple choice and true or false type questions are also provided.

How to solve C# Programming Delegates problems?

You can easily solve all kind of C# Programming questions based on Delegates by practicing the objective type exercises given below, also get shortcut methods to solve C# Programming Delegates problems.

Exercise :: Delegates - General Questions

  • Delegates - General Questions
1. 

Which of the following statements is incorrect about delegate?

A. Delegates are reference types.
B. Delegates are object oriented.
C. Delegates are type-safe.
D. Delegates serve the same purpose as function pointers in C and pointers to member function operators in C++.
E. Only one method can be called using a delegate.

Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

2. 

In which of the following areas are delegates commonly used?

  1. Remoting
  2. Serialization
  3. File Input/Output
  4. Multithreading
  5. Event handling

A. 1 and 2 only
B. 1 and 5 only
C. 1, 2 and 3 only
D. 4 and 5 only
E. All of the above

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

3. 

Which of the following is the necessary condition for implementing delegates?

A. Class declaration
B. Inheritance
C. Run-time Polymorphism
D. Exceptions
E. Compile-time Polymorphism

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

4. 

Which of the following statements are correct about the delegate declaration given below?

    delegate void del(int i);
  1. On declaring the delegate a class called del will get created.
  2. The signature of del need not be same as the signature of the method that we intend to call using it.
  3. The del class will be derived from the MulticastDelegate class.
  4. The method that can be called using del should not be a static method.
  5. The del class will contain a one-argument constructor and an lnvoke() method.

A. 1, 2 and 3 only
B. 1, 3 and 5 only
C. 2 and 4 only
D. 4 only
E. All of the above

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

5. 

Which of the following is the correct way to call the function MyFun() of the Sample class given below?

class Sample
{
    public int MyFun(int i)
    {
        Console.WriteLine("Welcome to IndiaBIX.com !" );
        return 0;
    }
}

A.
delegate void del(int i);
Sample s = new Sample();
deld = new del(ref s.MyFun);
d(10);
B.
delegate int del(int i);
Sample s = new Sample(.);
del = new delegate(ref MyFun);
del(10);
C.
Sample s = new Sample();
delegate void del = new delegate(ref MyFun);
del(10);
D.
delegate int del(int i);
del d;
Sample s = new Sample();
d = new del(ref s.MyFun);
d(10);

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.