Certainly! In C#, if and else are control flow statements used for decision-making. They allow you to execute certain blocks of code based on conditions. Here's a simple explanation with an example:
if statement: It evaluates a condition and executes a block of code if the condition is true.
else statement: It follows an if statement and executes a block of code if the condition in the if statement is false.
Here's an example:
Example
using System;
class Program
{
static void Main()
{
int number = 10;
if (number > 0)
{
Console.WriteLine("The number is positive.");
}
else
{
Console.WriteLine("The number is not positive.");
}
}
}
Explanation:
number initialized with the value 10.if statement checks whether number is greater than 0. If it is, it executes the block of code inside the curly braces {}.if statement is false, the else block is executed.number is greater than 0, the output will be: "The number is positive."You can also have multiple conditions using else if, which allows you to check additional conditions if the previous ones are false:
using System;
class Program
{
static void Main()
{
int number = 0;
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.");
}
}
}
In this example:
number is greater than 0, it prints "The number is positive."number is less than 0, it prints "The number is negative."number is 0), it prints "The number is zero."