byte Keyword in C#

Keywords are the words in a language that are used for some internal process or represent some predefined actions. byte is a keyword that is used to declare a variable which can store an unsigned value range from 0 to 255. It is an alias of System.Byte.

byte keyword occupies 1 byte (8 bits) in the memory.

Syntax:

byte variable_name = value;

Example:

Input: 250

Output: number: 250
        Size of a byte variable: 1

Input: 150

Output: Type of num1: System.Byte
        num1: 150
        Size of a byte variable: 1

Example 1:



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// C# program to show the usage of byte keyword
using System;
using System.Text;
  
class GFG {
  
    static void Main(string[] args)
    {
        // byte variable declaration
        byte num = 255;
  
        // to print value
        Console.WriteLine("num: " + num);
  
        // to print size of a byte
        Console.WriteLine("Size of a byte variable: " + sizeof(byte));
    }
}

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Output:

num: 255
Size of a byte variable: 1

Example 2:

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// C# program to show the usage of byte keyword
using System;
using System.Text;
  
class GFG {
  
    static void Main(string[] args)
    {
        // byte variable declaration
        byte num1 = 261;
  
        // to print value
        Console.WriteLine("num1: " + num1);
  
        // to print size of a byte
        Console.WriteLine("Size of a byte variable: " + sizeof(byte));
    }
}

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Error: When we enter number beyond the range from (0-255).

Constant value `261' cannot be converted to a `byte'

Example 3:

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// C# program to show the usage of byte keyword
using System;
using System.Text;
  
namespace geeks {
  
class GFG {
    static void Main(string[] args)
    {
        // byte variable declaration
        byte num1 = 150;
  
        // to print type of variable
        Console.WriteLine("Type of num1: " + num1.GetType());
  
        // to print value
        Console.WriteLine("num1: " + num1);
  
        // to print size of a byte
        Console.WriteLine("Size of a byte variable: " + sizeof(byte));
  
        // hit ENTER to exit
        Console.ReadLine();
    }
}
}

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Output:

Type of num1: System.Byte
num1: 150
Size of a byte variable: 1



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