Generate n bit gray code

Here given code implementation process.

/*
   C Program for
   Generate n bit gray code
*/
#include <stdio.h>

// Print gray code
void grayCode(int n, int *code)
{
	if (n == 0)
	{
		// Display calculate code
		printf("\n  %d", *code);
		return;
	}
	grayCode(n - 1, code);
	// Calculate gray code
	*code = *code ^ (1 << (n - 1));
	grayCode(n - 1, code);
}
// Handles the request to find gray code
void findGraycode(int n)
{
	if (n <= 0)
	{
		return;
	}
	printf("\n  (%d) Bit gray code ", n);
	int code = 0;
	grayCode(n, & code);
	printf("\n");
}
int main()
{
	int n = 4;
	// Test when n = 4
	findGraycode(n);
	n = 5;
	// Test when n = 5
	findGraycode(n);
	return 0;
}

Output

  (4) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8

  (5) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8
  24
  25
  27
  26
  30
  31
  29
  28
  20
  21
  23
  22
  18
  19
  17
  16
/*
   Java Program for
   Generate n bit gray code
*/

public class GenerateGrayCode
{
    public int code;
    
    public GenerateGrayCode()
    {
        this.code = 0;
    }
    // Print gray code
    public void grayCode(int n)
    {
        if (n == 0)
        {
            // Display calculate code
            System.out.print("\n " + this.code );
            return;
        }
        grayCode(n - 1);
        // Calculate gray code
        this.code = this.code ^ (1 << (n - 1));
        grayCode(n - 1);
    }
    // Handles the request to find gray code
    public void findGraycode(int n)
    {
        if (n <= 0)
        {
            return;
        }
        System.out.print("\n (" + n + ") Bit gray code ");
        this.code = 0;
        grayCode(n);
        System.out.print("\n");
    }
    public static void main(String[] args) 
    {
        GenerateGrayCode task = new GenerateGrayCode();
        int n = 4;
        // Test when n = 4
        task.findGraycode(n);
        n = 5;
        // Test when n = 5
        task.findGraycode(n);
    }
}

Output

 (4) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8

 (5) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8
 24
 25
 27
 26
 30
 31
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// Include header file
#include <iostream>

using namespace std;
/*
   C++ Program for
   Generate n bit gray code
*/
class GenerateGrayCode
{
	public: int code;
	GenerateGrayCode()
	{
		this->code = 0;
	}
	// Print gray code
	void grayCode(int n)
	{
		if (n == 0)
		{
			// Display calculate code
			cout << "\n " << this->code;
			return;
		}
		this->grayCode(n - 1);
		// Calculate gray code
		this->code = this->code ^ (1 << (n - 1));
		this->grayCode(n - 1);
	}
	// Handles the request to find gray code
	void findGraycode(int n)
	{
		if (n <= 0)
		{
			return;
		}
		cout << "\n (" << n << ") Bit gray code ";
		this->code = 0;
		this->grayCode(n);
		cout << "\n";
	}
};
int main()
{
	GenerateGrayCode task = GenerateGrayCode();
	int n = 4;
	// Test when n = 4
	task.findGraycode(n);
	n = 5;
	// Test when n = 5
	task.findGraycode(n);
	return 0;
}

Output

 (4) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8

 (5) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8
 24
 25
 27
 26
 30
 31
 29
 28
 20
 21
 23
 22
 18
 19
 17
 16
// Include namespace system
using System;
/*
   C# Program for
   Generate n bit gray code
*/
public class GenerateGrayCode
{
	public int code;
	public GenerateGrayCode()
	{
		this.code = 0;
	}
	// Print gray code
	public void grayCode(int n)
	{
		if (n == 0)
		{
			// Display calculate code
			Console.Write("\n " + this.code);
			return;
		}
		grayCode(n - 1);
		// Calculate gray code
		this.code = this.code ^ (1 << (n - 1));
		grayCode(n - 1);
	}
	// Handles the request to find gray code
	public void findGraycode(int n)
	{
		if (n <= 0)
		{
			return;
		}
		Console.Write("\n (" + n + ") Bit gray code ");
		this.code = 0;
		grayCode(n);
		Console.Write("\n");
	}
	public static void Main(String[] args)
	{
		GenerateGrayCode task = new GenerateGrayCode();
		int n = 4;
		// Test when n = 4
		task.findGraycode(n);
		n = 5;
		// Test when n = 5
		task.findGraycode(n);
	}
}

Output

 (4) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8

 (5) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8
 24
 25
 27
 26
 30
 31
 29
 28
 20
 21
 23
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 18
 19
 17
 16
<?php
/*
   Php Program for
   Generate n bit gray code
*/
class GenerateGrayCode
{
	public $code;

	function __construct()
	{
		$this->code = 0;
	}
	// Print gray code
	public	function grayCode($n)
	{
		if ($n == 0)
		{
			// Display calculate code
			echo "\n ". $this->code;
			return;
		}
		$this->grayCode($n - 1);
		// Calculate gray code
		$this->code = $this->code ^ (1 << ($n - 1));
		$this->grayCode($n - 1);
	}
	// Handles the request to find gray code
	public	function findGraycode($n)
	{
		if ($n <= 0)
		{
			return;
		}
		echo "\n (". $n .") Bit gray code ";
		$this->code = 0;
		$this->grayCode($n);
		echo "\n";
	}
}

function main()
{
	$task = new GenerateGrayCode();
	$n = 4;
	// Test when n = 4
	$task->findGraycode($n);
	$n = 5;
	// Test when n = 5
	$task->findGraycode($n);
}
main();

Output

 (4) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8

 (5) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8
 24
 25
 27
 26
 30
 31
 29
 28
 20
 21
 23
 22
 18
 19
 17
 16
/*
   Node Js Program for
   Generate n bit gray code
*/
class GenerateGrayCode
{
	constructor()
	{
		this.code = 0;
	}
	// Print gray code
	grayCode(n)
	{
		if (n == 0)
		{
			// Display calculate code
			console.log("  "+this.code);
			return;
		}
		this.grayCode(n - 1);
		// Calculate gray code
		this.code = this.code ^ (1 << (n - 1));
		this.grayCode(n - 1);
	}
	// Handles the request to find gray code
	findGraycode(n)
	{
		if (n <= 0)
		{
			return;
		}
		console.log(" (" + n + ") Bit gray code ");
		this.code = 0;
		this.grayCode(n);
		console.log("\n");
	}
}

function main()
{
	var task = new GenerateGrayCode();
	var n = 4;
	// Test when n = 4
	task.findGraycode(n);
	n = 5;
	// Test when n = 5
	task.findGraycode(n);
}
main();

Output

 (4) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8


 (5) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8
  24
  25
  27
  26
  30
  31
  29
  28
  20
  21
  23
  22
  18
  19
  17
  16

#    Python 3 Program for
#    Generate n bit gray code

class GenerateGrayCode :
	
	def __init__(self) :
		self.code = 0
	
	#  Print gray code
	def grayCode(self, n) :
		if (n == 0) :
			#  Display calculate code
			print("\n ", self.code, end = "")
			return
		
		self.grayCode(n - 1)
		#  Calculate gray code
		self.code = self.code ^ (1 << (n - 1))
		self.grayCode(n - 1)
	
	#  Handles the request to find gray code
	def findGraycode(self, n) :
		if (n <= 0) :
			return
		
		print("\n (", n ,") Bit gray code ", end = "")
		self.code = 0
		self.grayCode(n)
		print(end = "\n")
	

def main() :
	task = GenerateGrayCode()
	n = 4
	#  Test when n = 4
	task.findGraycode(n)
	n = 5
	#  Test when n = 5
	task.findGraycode(n)

if __name__ == "__main__": main()

Output

 ( 4 ) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8

 ( 5 ) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8
  24
  25
  27
  26
  30
  31
  29
  28
  20
  21
  23
  22
  18
  19
  17
  16
#    Ruby Program for
#    Generate n bit gray code

class GenerateGrayCode  
	# Define the accessor and reader of class GenerateGrayCode  
	attr_reader :code
	attr_accessor :code
 
	
	def initialize() 
		self.code = 0
	end

	#  Print gray code
	def grayCode(n) 
		if (n == 0) 
			#  Display calculate code
			print("\n ", self.code)
			return
		end

		self.grayCode(n - 1)
		#  Calculate gray code
		self.code = self.code ^ (1 << (n - 1))
		self.grayCode(n - 1)
	end

	#  Handles the request to find gray code
	def findGraycode(n) 
		if (n <= 0) 
			return
		end

		print("\n (", n ,") Bit gray code ")
		self.code = 0
		self.grayCode(n)
		print("\n")
	end

end

def main() 
	task = GenerateGrayCode.new()
	n = 4
	#  Test when n = 4
	task.findGraycode(n)
	n = 5
	#  Test when n = 5
	task.findGraycode(n)
end

main()

Output

 (4) Bit gray code 
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8

 (5) Bit gray code 
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8
 24
 25
 27
 26
 30
 31
 29
 28
 20
 21
 23
 22
 18
 19
 17
 16
/*
   Scala Program for
   Generate n bit gray code
*/
class GenerateGrayCode(var code: Int)
{
	def this()
	{
		this(0);
	}
	// Print gray code
	def grayCode(n: Int): Unit = {
		if (n == 0)
		{
			// Display calculate code
			print("\n " + this.code);
			return;
		}
		this.grayCode(n - 1);
		// Calculate gray code
		this.code = this.code ^ (1 << (n - 1));
		this.grayCode(n - 1);
	}
	// Handles the request to find gray code
	def findGraycode(n: Int): Unit = {
		if (n <= 0)
		{
			return;
		}
		print("\n (" + n + ") Bit gray code ");
		this.code = 0;
		this.grayCode(n);
		print("\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var task: GenerateGrayCode = new GenerateGrayCode();
		var n: Int = 4;
		// Test when n = 4
		task.findGraycode(n);
		n = 5;
		// Test when n = 5
		task.findGraycode(n);
	}
}

Output

 (4) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8

 (5) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8
 24
 25
 27
 26
 30
 31
 29
 28
 20
 21
 23
 22
 18
 19
 17
 16
/*
   Swift 4 Program for
   Generate n bit gray code
*/
class GenerateGrayCode
{
	var code: Int;
	init()
	{
		self.code = 0;
	}
	// Print gray code
	func grayCode(_ n: Int)
	{
		if (n == 0)
		{
			// Display calculate code
			print("\n ", self.code, terminator: "");
			return;
		}
		self.grayCode(n - 1);
		// Calculate gray code
		self.code = self.code ^ (1 << (n - 1));
		self.grayCode(n - 1);
	}
	// Handles the request to find gray code
	func findGraycode(_ n: Int)
	{
		if (n <= 0)
		{
			return;
		}
		print("\n (", n ,") Bit gray code ", terminator: "");
		self.code = 0;
		self.grayCode(n);
		print(terminator: "\n");
	}
}
func main()
{
	let task: GenerateGrayCode = GenerateGrayCode();
	var n: Int = 4;
	// Test when n = 4
	task.findGraycode(n);
	n = 5;
	// Test when n = 5
	task.findGraycode(n);
}
main();

Output

 ( 4 ) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8

 ( 5 ) Bit gray code
  0
  1
  3
  2
  6
  7
  5
  4
  12
  13
  15
  14
  10
  11
  9
  8
  24
  25
  27
  26
  30
  31
  29
  28
  20
  21
  23
  22
  18
  19
  17
  16
/*
   Kotlin Program for
   Generate n bit gray code
*/
class GenerateGrayCode
{
	var code: Int;
	constructor()
	{
		this.code = 0;
	}
	// Print gray code
	fun grayCode(n: Int): Unit
	{
		if (n == 0)
		{
			// Display calculate code
			print("\n " + this.code);
			return;
		}
		this.grayCode(n - 1);
		// Calculate gray code
		this.code = this.code xor (1 shl(n - 1));
		this.grayCode(n - 1);
	}
	// Handles the request to find gray code
	fun findGraycode(n: Int): Unit
	{
		if (n <= 0)
		{
			return;
		}
		print("\n (" + n + ") Bit gray code ");
		this.code = 0;
		this.grayCode(n);
		print("\n");
	}
}
fun main(args: Array < String > ): Unit
{
	var task: GenerateGrayCode = GenerateGrayCode();
	var n: Int = 4;
	// Test when n = 4
	task.findGraycode(n);
	n = 5;
	// Test when n = 5
	task.findGraycode(n);
}

Output

 (4) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8

 (5) Bit gray code
 0
 1
 3
 2
 6
 7
 5
 4
 12
 13
 15
 14
 10
 11
 9
 8
 24
 25
 27
 26
 30
 31
 29
 28
 20
 21
 23
 22
 18
 19
 17
 16


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