Functions and Methods in C Sharp MCQ question and answer with solution

21

What is the purpose of method parameters in C#?

A) To define the name of the method B) To specify the return type of the method C) To define the access modifier of the method D) To pass data to the method

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Answer & Solution

Answer: Option D

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22

What is the result of the expression Math.Round(4.5) in C#?

A) 4 B) 5 C) 4.5 D) 5.4

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Answer & Solution

Answer: Option B

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23

What is the correct syntax to declare a method named PrintMessage that prints a message to the console without returning any value in C#?

A) PrintMessage: { Console.WriteLine("Message"); } B) void PrintMessage { Console.WriteLine("Message"); } C) PrintMessage() { Console.WriteLine("Message"); } D) void PrintMessage() { Console.WriteLine("Message"); }

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Answer & Solution

Answer: Option D

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24

In C#, which keyword is used to define a method that cannot be overridden in derived classes?

A) final B) static C) sealed D) const

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Answer & Solution

Answer: Option C

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25

What is the purpose of method overloading in C#?

A) To allow methods with the same name and signature B) To override existing methods C) To allow methods with the same name but different signatures D) To restrict access to methods

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Answer & Solution

Answer: Option C

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26

What is the correct way to declare a method named GetAbsoluteValue that takes an integer parameter num and returns its absolute value in C#?

A) GetAbsoluteValue(num) { return Math.Abs(num); } B) int GetAbsoluteValue(int num) { return Math.Abs(num); } C) GetAbsoluteValue { return Math.Abs(num); } D) None of the above

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Answer & Solution

Answer: Option B

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27

In C#, which method is used to convert a string representation of a number to its integer equivalent?

A) string.ToInt() B) Math.ToInt() C) int.Parse() D) Convert.ToInt32()

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Answer & Solution

Answer: Option C

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28

What is the correct syntax to define a method named CalculateArea that calculates the area of a rectangle with length and width parameters in C#?

A) double CalculateArea(double length, double width) { return length * width; } B) CalculateArea(double length, double width) { return length * width; } C) double CalculateArea(length, width) { return length * width; } D) CalculateArea { double length * double width; }

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Answer & Solution

Answer: Option B

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29

In C#, which keyword is used to define a method that can be overridden in derived classes?

A) virtual B) overridable C) extendable D) override

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Answer & Solution

Answer: Option D

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30

What is the correct way to call a method named PrintName with a string parameter name in C#?

A) PrintName("John"); B) PrintName(name: "John"); C) PrintName = "John"; D) PrintName(name);

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Answer & Solution

Answer: Option B

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Functions and Methods in C Sharp MCQ question and answer with solution | C# Program MCQs