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Reverse the array elements

Here given code implementation process.

// C Program to
// Reverse the array elements
#include <stdio.h>
//Function which is swapping two array elements of given location
void swap_element(int arr[], int i, int j)
{
	//Get i location element
	int temp = arr[i];
	//set new values
	arr[i] = arr[j];
	arr[j] = temp;
}
//Function which is display array elements
void display(int arr[], int size)
{
	for (int i = 0; i < size; ++i)
	{
		printf("%d ", arr[i]);
	}
	printf("\n");
}
//Function which is Reversing given array elements 
void reverse_element(int arr[], int size)
{
	int front = 0;
	int tail = size - 1;
	//Just before the Reversing array elements
	printf("Before Reversing elements \n");
	display(arr, size);
	while (front < tail)
	{
		//Swap the array elements
		swap_element(arr, front, tail);
		front++;
		tail--;
	}
	//After modify array elements
	printf("After Reversing elements \n");
	display(arr, size);
	printf("\n");
}
int main()
{
	//Define array elements
	int arr1[] = {
		1,
		2,
		3,
		4,
		5,
		6,
		7,
		8
	};
	int size = sizeof(arr1) / sizeof(arr1[0]);
	reverse_element(arr1, size);
	//Define array elements
	int arr2[] = {
		7,
		2,
		9,
		-7,
		2,
		1,
		8,
		2,
		2
	};
	size = sizeof(arr2) / sizeof(arr2[0]);
	reverse_element(arr2, size);
	return 0;
}

Output

Before Reversing elements
1 2 3 4 5 6 7 8
After Reversing elements
8 7 6 5 4 3 2 1

Before Reversing elements
7 2 9 -7 2 1 8 2 2
After Reversing elements
2 2 8 1 2 -7 9 2 7

/*
  Java Program
  Reverse the array elements
*/
class MyArray
{
	//Function which is swapping two array elements of given location
	public void swap_element(int[] arr, int i, int j)
	{
		//Get i location element
		int temp = arr[i];
		//set new values
		arr[i] = arr[j];
		arr[j] = temp;
	}
	//Function which is display array elements
	public void display(int[] arr, int size)
	{
		for (int i = 0; i < size; ++i)
		{
			System.out.print(" " + arr[i] + " ");
		}
		System.out.print("\n");
	}
	//Function which is Reversing given array elements 
	public void reverse_element(int[] arr, int size)
	{
		int front = 0;
		int tail = size - 1;
		//Just before the Reversing array elements
		System.out.print("Before Reversing elements \n");
		display(arr, size);
		while (front < tail)
		{
			//Swap the array elements
			swap_element(arr, front, tail);
			front++;
			tail--;
		}
		//After modify array elements
		System.out.print("After Reversing elements \n");
		display(arr, size);
		System.out.print("\n");
	}
	public static void main(String[] args)
	{
		MyArray obj = new MyArray();
		//Define array elements
		int[] arr1 = {
			1,
			2,
			3,
			4,
			5,
			6,
			7,
			8
		};
		int size = arr1.length;
		obj.reverse_element(arr1, size);
		//Define array elements
		int[] arr2 = {
			7,
			2,
			9,
			-7,
			2,
			1,
			8,
			2,
			2
		};
		size = arr2.length;
		obj.reverse_element(arr2, size);
	}
}

Output

Before Reversing elements
 1  2  3  4  5  6  7  8
After Reversing elements
 8  7  6  5  4  3  2  1

Before Reversing elements
 7  2  9  -7  2  1  8  2  2
After Reversing elements
 2  2  8  1  2  -7  9  2  7

/*
  C++ Program
  Reverse the array elements
*/
#include<iostream>
using namespace std;
class MyArray
{
	public:
		//Function which is swapping two array elements of given location
		void swap_element(int arr[], int i, int j)
		{
			//Get i location element
			int temp = arr[i];
			//set new values
			arr[i] = arr[j];
			arr[j] = temp;
		}
	//Function which is display array elements
	void display(int arr[], int size)
	{
		for (int i = 0; i < size; ++i)
		{
			cout << " " << arr[i] << " ";
		}
		cout << "\n";
	}
	//Function which is Reversing given array elements 
	void reverse_element(int arr[], int size)
	{
		int front = 0;
		int tail = size - 1;
		cout << "Before Reversing elements \n";
		this->display(arr, size);
		while (front < tail)
		{
			//Swap the array elements
			this->swap_element(arr, front, tail);
			front++;
			tail--;
		}
		cout << "After Reversing elements \n";
		this->display(arr, size);
		cout << "\n";
	}
};
int main()
{
	MyArray obj ;
	int arr1[] = {
		1,
		2,
		3,
		4,
		5,
		6,
		7,
		8
	};
	int size = sizeof(arr1) / sizeof(arr1[0]);
	obj.reverse_element(arr1, size);
	int arr2[] = {
		7,
		2,
		9,
		-7,
		2,
		1,
		8,
		2,
		2
	};
	size = sizeof(arr2) / sizeof(arr2[0]);
	obj.reverse_element(arr2, size);
	return 0;
}

Output

Before Reversing elements
 1  2  3  4  5  6  7  8
After Reversing elements
 8  7  6  5  4  3  2  1

Before Reversing elements
 7  2  9  -7  2  1  8  2  2
After Reversing elements
 2  2  8  1  2  -7  9  2  7

/*
  C# Program
  Reverse the array elements
*/
using System;
class MyArray
{
	//Function which is swapping two array elements of given location
	public void swap_element(int[] arr, int i, int j)
	{
		//Get i location element
		int temp = arr[i];
		//set new values
		arr[i] = arr[j];
		arr[j] = temp;
	}
	//Function which is display array elements
	public void display(int[] arr, int size)
	{
		for (int i = 0; i < size; i++)
		{
			Console.Write(" " + arr[i] + " ");
		}
		Console.Write("\n");
	}
	//Function which is Reversing given array elements 
	public void reverse_element(int[] arr, int size)
	{
		int front = 0;
		int tail = size - 1;
		Console.Write("Before Reversing elements \n");
		display(arr, size);
		while (front < tail)
		{
			//Swap the array elements
			swap_element(arr, front, tail);
			front++;
			tail--;
		}
		Console.Write("After Reversing elements \n");
		display(arr, size);
		Console.Write("\n");
	}
	public static void Main(String[] args)
	{
		MyArray obj = new MyArray();
		int[] arr1 = {
			1,
			2,
			3,
			4,
			5,
			6,
			7,
			8
		};
		int size = arr1.Length;
		obj.reverse_element(arr1, size);
		int[] arr2 = {
			7,
			2,
			9,
			-7,
			2,
			1,
			8,
			2,
			2
		};
		size = arr2.Length;
		obj.reverse_element(arr2, size);
	}
}

Output

Before Reversing elements
 1  2  3  4  5  6  7  8
After Reversing elements
 8  7  6  5  4  3  2  1

Before Reversing elements
 7  2  9  -7  2  1  8  2  2
After Reversing elements
 2  2  8  1  2  -7  9  2  7

<?php
/*
  Php Program
  Reverse the array elements
*/
class MyArray
{
	//Function which is swapping two array elements of given location
	function swap_element( $arr, $i, $j)
	{
		//Get i location element
		$temp = $arr[$i];
		//set new values
		$arr[$i] = $arr[$j];
		$arr[$j] = $temp;
	}
	//Function which is display array elements
	function display( & $arr, $size)
	{
		for ($i = 0; $i < $size; ++$i)
		{
			echo " ". $arr[$i] ." ";
		}
		echo "\n";
	}
	//Function which is Reversing given array elements 
	function reverse_element( & $arr, $size)
	{
		$front = 0;
		$tail = $size - 1;
		echo "Before Reversing elements \n";
		$this->display($arr, $size);
		while ($front < $tail)
		{
			//Swap the array elements
			$this->swap_element($arr, $front, $tail);
			$front++;
			$tail--;
		}
		echo "After Reversing elements \n";
		$this->display($arr, $size);
		echo "\n";
	}
}

function main()
{
	$obj = new MyArray();
	//Define array elements
	$arr1 = array(1, 2, 3, 4, 5, 6, 7, 8);
	$size = count($arr1);
	$obj->reverse_element($arr1, $size);
	//Define array elements
	$arr2 = array(7, 2, 9, -7, 2, 1, 8, 2, 2);
	$size = count($arr2);
	$obj->reverse_element($arr2, $size);
}
main();

Output

Before Reversing elements
 1  2  3  4  5  6  7  8
After Reversing elements
 1  2  3  4  5  6  7  8

Before Reversing elements
 7  2  9  -7  2  1  8  2  2
After Reversing elements
 7  2  9  -7  2  1  8  2  2

/*
  Node Js Program
  Reverse the array elements
*/
class MyArray
{
	//Function which is swapping two array elements of given location
	swap_element(arr, i, j)
	{
		//Get i location element
		var temp = arr[i];
		//set new values
		arr[i] = arr[j];
		arr[j] = temp;
	}
	//Function which is display array elements
	display(arr, size)
	{
		for (var i = 0; i < size; ++i)
		{
			process.stdout.write(" " + arr[i] + " ");
		}
		process.stdout.write("\n");
	}
	//Function which is Reversing given array elements 
	reverse_element(arr, size)
	{
		var front = 0;
		var tail = size - 1;
		process.stdout.write("Before Reversing elements \n");
		this.display(arr, size);
		while (front < tail)
		{
			//Swap the array elements
			this.swap_element(arr, front, tail);
			front++;
			tail--;
		}
		process.stdout.write("After Reversing elements \n");
		this.display(arr, size);
		process.stdout.write("\n");
	}
}

function main()
{
	var obj = new MyArray();
	//Define array elements
	var arr1 = [1, 2, 3, 4, 5, 6, 7, 8];
	var size = arr1.length;
	obj.reverse_element(arr1, size);
	//Define array elements
	var arr2 = [7, 2, 9, -7, 2, 1, 8, 2, 2];
	size = arr2.length;
	obj.reverse_element(arr2, size);
}
main();

Output

Before Reversing elements
 1  2  3  4  5  6  7  8
After Reversing elements
 8  7  6  5  4  3  2  1

Before Reversing elements
 7  2  9  -7  2  1  8  2  2
After Reversing elements
 2  2  8  1  2  -7  9  2  7

#   Python 3 Program
#   Reverse the array elements

class MyArray :
	# Function which is swapping two array elements of given location
	def swap_element(self, arr, i, j) :
		# Get i location element
		temp = arr[i]
		# set new values
		arr[i] = arr[j]
		arr[j] = temp
	
	# Function which is display array elements
	def display(self, arr, size) :
		i = 0
		while (i < size) :
			print(" ", arr[i] ," ", end = "")
			i += 1
		
		print("\n", end = "")
	
	# Function which is Reversing given array elements 
	def reverse_element(self, arr, size) :
		front = 0
		tail = size - 1
		print("Before Reversing elements \n", end = "")
		self.display(arr, size)
		while (front < tail) :
			# Swap the array elements
			self.swap_element(arr, front, tail)
			front += 1
			tail -= 1
		
		print("After Reversing elements \n", end = "")
		self.display(arr, size)
		print("\n", end = "")
	

def main() :
	obj = MyArray()
	# Define array elements
	arr1 = [1, 2, 3, 4, 5, 6, 7, 8]
	size = len(arr1)
	obj.reverse_element(arr1, size)
	# Define array elements
	arr2 = [7, 2, 9, -7, 2, 1, 8, 2, 2]
	size = len(arr2)
	obj.reverse_element(arr2, size)

if __name__ == "__main__": main()

Output

Before Reversing elements
  1    2    3    4    5    6    7    8
After Reversing elements
  8    7    6    5    4    3    2    1

Before Reversing elements
  7    2    9    -7    2    1    8    2    2
After Reversing elements
  2    2    8    1    2    -7    9    2    7

#   Ruby Program
#   Reverse the array elements

class MyArray

	# Function which is swapping two array elements of given location
	def swap_element(arr, i, j)
	
		# Get i location element
		temp = arr[i]
		# set new values
		arr[i] = arr[j]
		arr[j] = temp
	end
	# Function which is display array elements
	def display(arr, size)
	
		i = 0
		while (i < size)
		
			print(" ", arr[i] ," ")
			i += 1
		end
		print("\n")
	end
	# Function which is Reversing given array elements 
	def reverse_element(arr, size)
	
		front = 0
		tail = size - 1
		# Just before the Reversing array elements
		print("Before Reversing elements \n")
		self.display(arr, size)
		while (front < tail)
		
			# Swap the array elements
			self.swap_element(arr, front, tail)
			front += 1
			tail -= 1
		end
		# After modify array elements
		print("After Reversing elements \n")
		self.display(arr, size)
		print("\n")
	end
end
def main()

	obj = MyArray.new()
	# Define array elements
	arr1 = [1, 2, 3, 4, 5, 6, 7, 8]
	size = arr1.length
	obj.reverse_element(arr1, size)
	# Define array elements
	arr2 = [7, 2, 9, -7, 2, 1, 8, 2, 2]
	size = arr2.length
	obj.reverse_element(arr2, size)
end
main()

Output

Before Reversing elements 
 1  2  3  4  5  6  7  8 
After Reversing elements 
 8  7  6  5  4  3  2  1 

Before Reversing elements 
 7  2  9  -7  2  1  8  2  2 
After Reversing elements 
 2  2  8  1  2  -7  9  2  7 


/*
  Scala Program
  Reverse the array elements
*/
class MyArray
{
	//Function which is swapping two array elements of given location
	def swap_element(arr: Array[Int], i: Int, j: Int): Unit = {
		//Get i location element
		var temp: Int = arr(i);
		//set new values
		arr(i) = arr(j);
		arr(j) = temp;
	}
	//Function which is display array elements
	def display(arr: Array[Int], size: Int): Unit = {
		var i: Int = 0;
		while (i < size)
		{
			print(" " + arr(i) + " ");
			i += 1;
		}
		print("\n");
	}
	//Function which is Reversing given array elements 
	def reverse_element(arr: Array[Int], size: Int): Unit = {
		var front: Int = 0;
		var tail: Int = size - 1;
		//Just before the Reversing array elements
		print("Before Reversing elements \n");
		display(arr, size);
		while (front < tail)
		{
			//Swap the array elements
			swap_element(arr, front, tail);
			front += 1;
			tail -= 1;
		}
		//After modify array elements
		print("After Reversing elements \n");
		display(arr, size);
		print("\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var obj: MyArray = new MyArray();
		//Define array elements
		var arr1: Array[Int] = Array(1, 2, 3, 4, 5, 6, 7, 8);
		var size: Int = arr1.length;
		obj.reverse_element(arr1, size);
		//Define array elements
		var arr2: Array[Int] = Array(7, 2, 9, -7, 2, 1, 8, 2, 2);
		size = arr2.length;
		obj.reverse_element(arr2, size);
	}
}

Output

Before Reversing elements
 1  2  3  4  5  6  7  8
After Reversing elements
 8  7  6  5  4  3  2  1

Before Reversing elements
 7  2  9  -7  2  1  8  2  2
After Reversing elements
 2  2  8  1  2  -7  9  2  7

/*
  Swift Program
  Reverse the array elements
*/
class MyArray
{
	//Function which is swapping two array elements of given location
	func swap_element(_ arr: inout[Int], _ i: Int, _ j: Int)
	{
		//Get i location element
		let temp: Int = arr[i];
		//set new values
		arr[i] = arr[j];
		arr[j] = temp;
	}
	//Function which is display array elements
	func display(_ arr: [Int], _ size: Int)
	{
		var i: Int = 0;
		while (i < size)
		{
			print(" ", arr[i] ," ", terminator: "");
			i += 1;
		}
		print("\n", terminator: "");
	}
	//Function which is Reversing given array elements 
	func reverse_element(_ arr: inout [Int], _ size: Int)
	{
		var front: Int = 0;
		var tail: Int = size - 1;
		print("Before Reversing elements \n", terminator: "");
		self.display(arr, size);
		while (front < tail)
		{
			//Swap the array elements
			self.swap_element(&arr, front, tail);
			front += 1;
			tail -= 1;
		}
		print("After Reversing elements \n", terminator: "");
		self.display(arr, size);
		print("\n", terminator: "");
	}
}
func main()
{
	let obj: MyArray = MyArray();
	//Define array elements
	var arr1: [Int] = [1, 2, 3, 4, 5, 6, 7, 8];
	var size: Int = arr1.count;
	obj.reverse_element(&arr1, size);
	//Define array elements
	var arr2: [Int] = [7, 2, 9, -7, 2, 1, 8, 2, 2];
	size = arr2.count;
	obj.reverse_element(&arr2, size);
}
main();

Output

Before Reversing elements
  1    2    3    4    5    6    7    8
After Reversing elements
  8    7    6    5    4    3    2    1

Before Reversing elements
  7    2    9    -7    2    1    8    2    2
After Reversing elements
  2    2    8    1    2    -7    9    2    7
Last updated on by Kalkicode




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