What is If Else With Example Code

In C#, if...else statements are used for conditional execution.
They allow you to execute certain code blocks based on the evaluation of a condition.
There are several variations of if...else statements, including if,
if...else, if...else if...else, and nested if...else.

using System;
 
class Program
{
    static void Main(string[] args)
    {
        int a = 25;
        int b = 50;
 
        // Less than
        Console.WriteLine($"Is {a} less than {b}? " + (a < b)); // Output: True
 
        // Less than or equal to
        Console.WriteLine($"Is {a} less than or equal to {b}? " + (a <= b)); // Output: True
 
        // Greater than
        Console.WriteLine($"Is {a} greater than {b}? " + (a > b)); // Output: False
 
        // Greater than or equal to
        Console.WriteLine($"Is {a} greater than or equal to {b}? " + (a >= b)); // Output: False
 
        // Equal to
        Console.WriteLine($"Is {a} equal to {b}? " + (a == b)); // Output: False
 
        // Not equal to
        Console.WriteLine($"Is {a} not equal to {b}? " + (a != b)); // Output: True
    }
}

using System;
 
class Program
{
    static void Main(string[] args)
    {
        int a = 25;
        int b = 50;
 
        // Less than
        if (a < b)
        {
            Console.WriteLine($"{a} is less than {b}");
        }
        else
        {
            Console.WriteLine($"{a} is not less than {b}");
        }
 
        // Less than or equal to
        if (a <= b)
        {
            Console.WriteLine($"{a} is less than or equal to {b}");
        }
        else
        {
            Console.WriteLine($"{a} is neither less than nor equal to {b}");
        }
 
        // Greater than
        if (a > b)
        {
            Console.WriteLine($"{a} is greater than {b}");
        }
        else
        {
            Console.WriteLine($"{a} is not greater than {b}");
        }
 
        // Greater than or equal to
        if (a >= b)
        {
            Console.WriteLine($"{a} is greater than or equal to {b}");
        }
        else
        {
            Console.WriteLine($"{a} is neither greater than nor equal to {b}");
        }
 
        // Equal to
        if (a == b)
        {
            Console.WriteLine($"{a} is equal to {b}");
        }
        else
        {
            Console.WriteLine($"{a} is not equal to {b}");
        }
 
        // Not equal to
        if (a != b)
        {
            Console.WriteLine($"{a} is not equal to {b}");
        }
        else
        {
            Console.WriteLine($"{a} is equal to {b}");
        }
    }
}