# Swap two nibbles in a byte

Here given code implementation process.

``````// C program
// Swap two nibbles in a byte
#include <stdio.h>

void swapNibbles(int num)
{
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
int result = ((num & 15) << 4) | ((num & 240) >> 4 );

printf("\n Number : %d",num);
printf("\n Result : %d",result);
}
int main(int argc, char const *argv[])
{

// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
swapNibbles(175);
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
swapNibbles(225);
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
swapNibbles(2);

return 0;
}``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````/*
Java program
Swap two nibbles in a byte
*/
public class BitSwap
{
// Interchange 4 bits of a number
public void swapNibbles(int num)
{
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
int result = ((num & 15) << 4) | ((num & 240) >> 4);
System.out.print("\n Number : " + num);
System.out.print("\n Result : " + result);
}
public static void main(String[] args)
{
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
}
}``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````// Include header file
#include <iostream>
using namespace std;
/*
C++ program
Swap two nibbles in a byte
*/
class BitSwap
{
public:
// Interchange 4 bits of a number
void swapNibbles(int num)
{
// (  num &15 ) Get initial 4 bit set bits in number
// (( num &15) << 4) this is moving initial 4 bits in left side [A]
// (( num &240)) Get next 4 bit set bits in number
// (( num &240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
int result = ((num &15) << 4) | ((num &240) >> 4);
cout << "\n Number : " << num;
cout << "\n Result : " << result;
}
};
int main()
{
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
return 0;
}``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````// Include namespace system
using System;
/*
C# program
Swap two nibbles in a byte
*/
public class BitSwap
{
// Interchange 4 bits of a number
public void swapNibbles(int num)
{
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
int result = ((num & 15) << 4) | ((num & 240) >> 4);
Console.Write("\n Number : " + num);
Console.Write("\n Result : " + result);
}
public static void Main(String[] args)
{
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
}
}``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````<?php
/*
Php program
Swap two nibbles in a byte
*/
class BitSwap
{
// Interchange 4 bits of a number
public	function swapNibbles(\$num)
{
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
\$result = ((\$num & 15) << 4) | ((\$num & 240) >> 4);
echo "\n Number : ". \$num;
echo "\n Result : ". \$result;
}
}

function main()
{
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
}
main();``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````/*
Node Js program
Swap two nibbles in a byte
*/
class BitSwap
{
// Interchange 4 bits of a number
swapNibbles(num)
{
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
var result = ((num & 15) << 4) | ((num & 240) >> 4);
process.stdout.write("\n Number : " + num);
process.stdout.write("\n Result : " + result);
}
}

function main()
{
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
}
main();``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````#   Python 3 program
#   Swap two nibbles in a byte

class BitSwap :
#  Interchange 4 bits of a number
def swapNibbles(self, num) :
#  (  num & 15 ) Get initial 4 bit set bits in number
#  (( num & 15) << 4) this is moving initial 4 bits in left side [A]
#  (( num & 240)) Get next 4 bit set bits in number
#  (( num & 240) >> 4 ) moving next 4 bits in right side [B]
#  A or B return swap version of 4 bits
result = ((num & 15) << 4) | ((num & 240) >> 4)
print("\n Number : ", num, end = "")
print("\n Result : ", result, end = "")

def main() :
#  (175)   10101111
#  4 (bit) 1010 1111
#             ↘ ↙
#          1111 1010
#  Result  (11111010) (250)
#  (225)   11100001
#  4 (bit) 1110 0001
#             ↘ ↙
#          0001 1110
#  Result  (00011110) (30)
#  (2)     00000010
#  4 (bit) 0000 0010
#             ↘ ↙
#          0010 0000
#  Result  (00100000) (32)

if __name__ == "__main__": main()``````

#### Output

`````` Number :  175
Result :  250
Number :  225
Result :  30
Number :  2
Result :  32``````
``````#   Ruby program
#   Swap two nibbles in a byte

class BitSwap
#  Interchange 4 bits of a number
def swapNibbles(num)
#  (  num & 15 ) Get initial 4 bit set bits in number
#  (( num & 15) << 4) this is moving initial 4 bits in left side [A]
#  (( num & 240)) Get next 4 bit set bits in number
#  (( num & 240) >> 4 ) moving next 4 bits in right side [B]
#  A or B return swap version of 4 bits
result = ((num & 15) << 4) | ((num & 240) >> 4)
print("\n Number : ", num)
print("\n Result : ", result)
end

end

def main()
#  (175)   10101111
#  4 (bit) 1010 1111
#             ↘ ↙
#          1111 1010
#  Result  (11111010) (250)
#  (225)   11100001
#  4 (bit) 1110 0001
#             ↘ ↙
#          0001 1110
#  Result  (00011110) (30)
#  (2)     00000010
#  4 (bit) 0000 0010
#             ↘ ↙
#          0010 0000
#  Result  (00100000) (32)
end

main()``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````/*
Scala program
Swap two nibbles in a byte
*/
class BitSwap
{
// Interchange 4 bits of a number
def swapNibbles(num: Int): Unit = {
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
var result: Int = ((num & 15) << 4) | ((num & 240) >> 4);
print("\n Number : " + num);
print("\n Result : " + result);
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: BitSwap = new BitSwap();
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
}
}``````

#### Output

`````` Number : 175
Result : 250
Number : 225
Result : 30
Number : 2
Result : 32``````
``````/*
Swift 4 program
Swap two nibbles in a byte
*/
class BitSwap
{
// Interchange 4 bits of a number
func swapNibbles(_ num: Int)
{
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
let result: Int = ((num & 15) << 4) | ((num & 240) >> 4);
print("\n Number : ", num, terminator: "");
print("\n Result : ", result, terminator: "");
}
}
func main()
{
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
}
main();``````

#### Output

`````` Number :  175
Result :  250
Number :  225
Result :  30
Number :  2
Result :  32``````
``````/*
Kotlin program
Swap two nibbles in a byte
*/
class BitSwap
{
// Interchange 4 bits of a number
fun swapNibbles(num: Int): Unit
{
// (  num & 15 ) Get initial 4 bit set bits in number
// (( num & 15) << 4) this is moving initial 4 bits in left side [A]
// (( num & 240)) Get next 4 bit set bits in number
// (( num & 240) >> 4 ) moving next 4 bits in right side [B]
// A or B return swap version of 4 bits
var result: Int = ((num and 15) shl 4) or((num and 240) shr 4);
print("\n Number : " + num);
print("\n Result : " + result);
}
}
fun main(args: Array < String > ): Unit
{
// (175)   10101111
// 4 (bit) 1010 1111
//            ↘ ↙
//         1111 1010
// Result  (11111010) (250)
// (225)   11100001
// 4 (bit) 1110 0001
//            ↘ ↙
//         0001 1110
// Result  (00011110) (30)
// (2)     00000010
// 4 (bit) 0000 0010
//            ↘ ↙
//         0010 0000
// Result  (00100000) (32)
}``````

#### Output

`````` Number :  175
Result :  250
Number :  225
Result :  30
Number :  2
Result :  32``````

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