Interview Questions

1. Which of the following keyword is used to overload user defined types by defining static member functions?

Options:

a. op b) c) d)

b. opoverload

c. operator

d. operatoroverload

Reveal Answer

2. Which of following statements are correct in nature?

Options:

a. The conditional logical operators cannot be overloaded

b. The array indexing operator can be overloaded

c. A public or nested public preference type does not overload the equality operator

d. None of the mentioned

Reveal Answer

3. Operators that cannot be overloaded are?

Options:

a. ||

b. +=

c. +

d. []

Reveal Answer

4. Which statements are correct about operator overloading?

Options:

a. Mathematical or physical modeling where we use classes to represent objects such as vectors,matrices,complexnumbers etc

b. Graphical programs where coordinate related objects are used to represent positions on the screen

c. Financial programs where a class represents an amount of money

d. All of the mentioned

Reveal Answer

5. Correct way to define operator method or to perform operator overloading is?

Options:

a. public static op(arglist) { }

b. public static retval op(arglist) { }

c. public static retval operator op(arglist) { }

d. All of the mentioned

Reveal Answer

6. What is vector in operator overloading?

Options:

a. class

b. method()

c. data type

d. None

Reveal Answer

7. Consider the following code:

Options:

a. // MyClass1.cs partial class MyClass { partial void f(int x); }

b. // MyClass2.cs partial class MyClass { partial void f(int x) { Console.WriteLine(x.ToString()); } }

Reveal Answer

8. Which of the following statements is TRUE?

Options:

a. The partial method MUST return 'void'

b. Parameters can be 'output parameters'

c. The partial method is always public

d. None of the above

Reveal Answer

9. Is it possible to add an extension method to the static classes?

Options:

a. Yes

b. No

Reveal Answer

10. Is it possible to declare an extension method to the outside static class?

Options:

a. Yes

b. No

Reveal Answer

11. Which is the coreect synatx of creating an extension method?

Options:

a. public static class A { public static string M(this string data) { return "something"; } }

b. public static class A { public string M(this string data) { return "something"; } }

c. public class A { public static string M(this string data) { return "something"; } }

d. public class A { public string M(this string data) { return "something"; } }

Reveal Answer

12. what is the difference between tuples and anonymous types ?

Options:

a. Anonymous types have property names which carry more information, for tuples you don't have this.

b. Tuples have property names which carry more information, for anonymous you don't have this.

c. You can't use anonymous types as return values and parameters though and you can with tuples.

d. 1 and 3

Reveal Answer

Interview Questions and Answer

1. Which of the following keyword is used to overload user defined types by defining static member functions?

2. Which of following statements are correct in nature?

3. Operators that cannot be overloaded are?

4. Which statements are correct about operator overloading?

5. Correct way to define operator method or to perform operator overloading is?

6. What is vector in operator overloading?

7. Consider the following code:

8. Which of the following statements is TRUE?

9. Is it possible to add an extension method to the static classes?

10. Is it possible to declare an extension method to the outside static class?

11. Which is the coreect synatx of creating an extension method?

12. what is the difference between tuples and anonymous types ?

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