C# Method Parameters

What is the concept of passing parameters by value in C#?

• Passing parameters by value means passing a reference to the actual parameter's value

• Passing parameters by value means passing the actual parameter's value as a pointer

• Passing parameters by value in C# means passing a copy of the actual parameter's value to the method or function.

• Passing parameters by value means passing the memory address of the actual parameter's value

Explain the concept of passing parameters by reference in C#.

• In C#, passing parameters by reference means creating a copy of the variable and passing it to the method.

• Passing parameters by reference in C# means the method can only read the value of the variable but not modify it.

• Passing parameters by reference in C# involves passing the value of the variable directly to the method without using memory addresses.

• In C#, passing parameters by reference means passing the memory address of the variable to the method, allowing the method to directly modify the value of the variable.

How are default parameter values used in C# methods?

• Default parameter values in C# methods are used to specify the data type of the parameter

• Default parameter values are not allowed in C# methods

• Default parameter values in C# methods are used to provide a default value for a parameter if no argument is provided when the method is called.

• Default parameter values in C# methods are used to return a default value if no argument is provided

What are named parameters and how are they used in C#?

• Named parameters in C# are used by specifying the parameter name followed by a colon and then the value when calling a method or function.

• Named parameters in C# are used by specifying the parameter name followed by an equal sign and then the value when calling a method or function.

• Named parameters in C# are used by specifying the parameter name followed by a plus sign and then the value when calling a method or function.

• Named parameters in C# are used by specifying the parameter name followed by a semicolon and then the value when calling a method or function.

Explain the concept of variable number of parameters in C# methods.

• The 'params' keyword in C# allows a method to accept a variable number of parameters of a specified type.

• The concept of variable number of parameters in C# methods is not supported

• C# methods can only accept a fixed number of parameters

• Variable number of parameters in C# methods can only be achieved using arrays

How can named parameters be helpful in C# method calls?

• Named parameters are not helpful in C# method calls

• Named parameters can cause errors in C# method calls

• Named parameters can be helpful in C# method calls by allowing the caller to specify the parameter name along with the value, which can make the code more readable and maintainable.

• Named parameters can only be used for primitive data types in C# method calls

What are the advantages of using variable number of parameters in C# methods?

• Variable number of parameters in C# methods make the code more complex

• Variable number of parameters in C# methods provide flexibility, reduce method overloading, and simplify code.

• Variable number of parameters in C# methods increase method overloading

• Variable number of parameters in C# methods reduce flexibility

public int FindMax(int num1, int num2) {

int result;

if(num1 > num2)

result = num1;

else

result = num2;

return result;

}

}

class Test {

static void Main(string[] args) {

int a = 100;

int b = 200;

int ret;

NumberManipulator n = new NumberManipulator();

ret = n.FindMax(a, b);

Console.WriteLine("Max value is : {0}", ret );

Console.ReadLine();

WHAT IS THE MAX VALUE?

public int FindMax(int num1, int num2, int num3) {

int result;

if(num1 > num2)

result = num1;

else

result = num2;

return result;

}

}

class Test {

static void Main(string[] args) {

int a = 100;

int b = 500;

int ret;

NumberManipulator n = new NumberManipulator();

ret = n.FindMax(a, b);

Console.WriteLine("Max value is : {0}", ret );

Console.ReadLine();

WHAT IS THE OUTPUT?

using System;

namespace MyApplication

{

class Program

{

static int PlusMethodInt(int x, int y, int z)

{

return x + y;

}

static double PlusMethodDouble(double x, double y, double z)

{

return x + y;

}

static void Main(string[] args)

{

int myNum1 = PlusMethodInt(15, 88, 72);

double myNum2 = PlusMethodDouble(20.5, 19.92, 30.45);

Console.WriteLine("Int: " + myNum1);

Console.WriteLine("Double: " + myNum2);

}

}

}

WHAT IS THE DOUBLE VALUE?