Conditional statements:

 In C#, conditional statements are used to control the flow of execution based on certain conditions.

Types:

1.if

2.if-else

3.else if

4.switch

1.if statement:

The if statement is used to execute a block of code if a specified condition is true.

*Single Statement

if (condition)

{

    // Code to be executed if the condition is true

}

2.if-else statement:

The if-else statement allows you to execute one block of code if the condition is true and another block if the condition is false.

*Two Statements

if (condition)

{

    // Code to be executed if the condition is true

}

else

{

    // Code to be executed if the condition is false

}

3.else if statement:

The else if statement is used when you have multiple conditions to check.

*Multiple Statements

if (condition1)

{

    // Code to be executed if condition1 is true

}

else if (condition2)

{

    // Code to be executed if condition2 is true

}

else

{

    // Code to be executed if none of the conditions are true

}

4.switch statement:

The switch statement is used to select one of many code blocks to be executed.

switch (variable)

{

    case value1:

        // Code to be executed if variable equals value1

        break;

    case value2:

        // Code to be executed if variable equals value2

        break;

    // ... more cases ...

    default:

        // Code to be executed if none of the cases match

        break;

}

Here's a simple example using if and else:

using System;

class Program

{

    static void Main()

    {

        int number = 10;

        if (number > 0)

        {

            Console.WriteLine("The number is positive.");

        }

        else if (number < 0)

        {

            Console.WriteLine("The number is negative.");

        }

        else

        {

            Console.WriteLine("The number is zero.");

        }

    }

}