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C# If Else Conditional

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What is if else statement in C# ?

  • In C#, an if statement can be followed by an optional else statement, which executes when the Boolean expression is false.
 if else statement in c#

Syntax:

if (condition) 
{
    condition statement is true;
} 
else 
{
    condition statement is false;
}
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  • If the Boolean expression evaluates to true, then the if block of code is executed, otherwise else block of code is executed.

C# Sample Code - C# Examples:

using System;
usingSystem.Collections.Generic;
usingSystem.Linq;
usingSystem.Text;

namespace wikitechy_if_else_condition
{
classProgram
    {
staticvoid Main(string[] args)
        {
bool condition = true;

if (condition)
            {
Console.WriteLine("WikiTechy says -if else condition is true.");
            }
else
            {
Console.WriteLine("WikiTechy says -if else condition is false.");

            }
Console.ReadLine();
        }
    }
}
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Code Explanation:

 if else conditional code in c#
  1. bool condition = trueBool stores truecondition. Bool variables can be assigned values based on expressions. Many expressions evaluate to a Boolean value. Represented in one byte, the bool type represents truth.
  2. if (condition)specifies to If the condition is true then the control goes to the body of if block, that is the program will execute the "WikiTechy says -if else condition is true".
  3. In this example Console.WriteLine,the Main method specifies its behavior with the statement "WikiTechy says -if else condition is true".And WriteLine is a method of the Console class defined in the System namespace. This statement reasons the message"WikiTechy says -if else condition is true"to be displayed on the screen.
  4. If the condition is false then the control goes to next level, that is if we provide else block the program will execute the else statement"WikiTechy says -if else condition is false".
  5. In this example Console.WriteLine,the Main method specifies its behavior with the statement "WikiTechy says -if else condition is false".And WriteLine is a method of the Console class defined in the System namespace. This statement reasons the message"WikiTechy says -if else condition is false"to be displayed on the screen.
  6. Here Console.ReadLine(); specifies to reads input from the console. When the user presses enter, it returns a string.

Sample C# examples - Output :

 output of if else condition true display
  1. Here in this output statement executes the if condition by printing the statement "WikiTechy says -if else condition is true".If the condition is false it goes to the else condition and prints the else statements as shown below:
 output of if else false statement display
  1. Here the output executes else statement by printing the statement "WikiTechy says -if else condition is false".


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