Reverse stack using another stack

Here given code implementation process.

// C program 
// Reverse stack using another stack
#include <stdio.h>
#include <stdlib.h>

// Define stack node
struct StackNode
{
	int element;
	struct StackNode *next;
};
// Define a custom stack
struct MyStack
{
	struct StackNode *top;
	int size;
};
struct MyStack *newStack()
{
	//Make a stack
	struct MyStack *stack = (struct MyStack *) malloc(sizeof(struct MyStack));
	if (stack != NULL)
	{
		//Set node values
		stack->top = NULL;
		stack->size = 0;
	}
	else
	{
		printf("\nMemory overflow when create new stack\n");
	}
}
//Create a new node of stack
struct StackNode *newNode(int element, struct StackNode *next)
{
	//Make a new node
	struct StackNode *node = (struct StackNode *) malloc(sizeof(struct StackNode));
	if (node == NULL)
	{
		printf("\nMemory overflow when create new stack Node \n");
	}
	else
	{
		node->element = element;
		node->next = next;
	}
	return node;
}
int isEmpty(struct MyStack *stack)
{
	if (stack->size > 0 && stack->top != NULL)
	{
		return 0;
	}
	else
	{
		return 1;
	}
}
// Add node at the top of stack
void push(struct MyStack *stack, int element)
{
	// Add stack element
	stack->top = newNode(element, stack->top);
	stack->size++;
}
// return top element of stack
int peek(struct MyStack *stack)
{
	return stack->top->element;
}
// Remove top element of stack
void pop(struct MyStack *stack)
{
	if (isEmpty(stack) == 0)
	{
		struct StackNode *temp = stack->top;
		// Change top element of stack
		stack->top = temp->next;
		// remove previous top
		free(temp);
		temp = NULL;
		stack->size--;
	}
}
// This is reverse the stack elements by using of another stack
void reverseStack(struct MyStack *stack)
{
	// Create auxiliary stack
	struct MyStack *auxiliary = newStack();
	int data;
	// Executing the loop until when input element are not empty
	while (isEmpty(stack) == 0)
	{
		// Get the top element of input stack
		data = peek(stack);
		// Remove top of current input stack
		pop(stack);
		// Add data to auxiliary stack
		push(auxiliary, data);
	}
	// Set auxiliary stack as new stack
	stack->top = auxiliary->top;
}
// Print element of stack
void printData(struct MyStack *stack)
{
	struct StackNode *temp = stack->top;
	while (temp != NULL)
	{
		// Display element value
		printf("  %d", temp->element);
		temp = temp->next;
	}
	printf("\n");
}
int main()
{
	struct MyStack *stack = newStack();
	// Add the stack element
	push(stack, 1);
	push(stack, 2);
	push(stack, 4);
	push(stack, 5);
	push(stack, 6);
	push(stack, 9);
	push(stack, 11);
	printf("\n Before Reverse \n");
	printData(stack);
	// reverse operation
	reverseStack(stack);
	printf("\n After Reverse \n");
	printData(stack);
	return 0;
}

Output

 Before Reverse
  11  9  6  5  4  2  1

 After Reverse
  1  2  4  5  6  9  11
/*
   Java Program
   Reverse stack using another stack
*/
// Define stack node
class StackNode
{
	public int element;
	public StackNode next;
	public StackNode(int element, StackNode next)
	{
		this.element = element;
		this.next = next;
	}
}
// Define a custom stack
class MyStack
{
	public StackNode top;
	public int size;
	public MyStack()
	{
		//Set node values
		this.top = null;
		this.size = 0;
	}
	// Add node at the top of stack
	public void push(int element)
	{
		this.top = new StackNode(element, this.top);
		this.size++;
	}
	public Boolean isEmpty()
	{
		if (this.size > 0 && this.top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	public void pop()
	{
		if (this.size > 0 && this.top != null)
		{
			StackNode temp = this.top;
			// Change top element of stack
			this.top = temp.next;
			// remove previous top
			temp = null;
			this.size--;
		}
	}
	// return top element of stack
	public int peek()
	{
		return this.top.element;
	}
}
public class SortStackElement
{
	public MyStack stack;
	public SortStackElement()
	{
		this.stack = new MyStack();
	}
	// Print element of stack
	public void printData()
	{
		StackNode temp = this.stack.top;
		while (temp != null)
		{
			// Display element value
			System.out.print("   " + temp.element);
			temp = temp.next;
		}
		System.out.print("\n");
	}
	// This is reverse the stack elements by using of another stack
	public void reverseStack()
	{
		// Create auxiliary stack
		MyStack auxiliary = new MyStack();
		int data = 0;
		// Executing the loop until when input element are not empty
		while (this.stack.isEmpty() == false)
		{
			// Get the top element of input stack
			data = this.stack.peek();
			// Remove top of current input stack
			this.stack.pop();
			// Add data to auxiliary stack
			auxiliary.push(data);
		}
		// Set auxiliary stack as new stack
		this.stack = auxiliary;
	}
	public static void main(String[] args)
	{
		SortStackElement task = new SortStackElement();
		// Add the stack element
		task.stack.push(1);
		task.stack.push(2);
		task.stack.push(4);
		task.stack.push(5);
		task.stack.push(6);
		task.stack.push(9);
		task.stack.push(11);
		/*
		Before Reverse
		=============
		11  <- Top 
		9  
		6  
		5  
		4  
		2  
		1
		*/
		System.out.print("\n Before Reverse \n");
		task.printData();
		// reverse operation
		task.reverseStack();
		/*
		After Reverse
		=============
		1  <- Top 
		2  
		4  
		5  
		6  
		9  
		11
		*/
		System.out.print("\n After Reverse \n");
		task.printData();
	}
}

Output

 Before Reverse
   11   9   6   5   4   2   1

 After Reverse
   1   2   4   5   6   9   11
// Include header file
#include <iostream>

using namespace std;
/*
   C++ Program
   Reverse stack using another stack
*/
// Define stack node
class StackNode
{
    public: 
    int element;
    StackNode *next;
    StackNode(int element, StackNode *next)
    {
        this->element = element;
        this->next = next;
    }
};
// Define a custom stack
class MyStack
{
    public: 
    StackNode *top;
    int size;
    MyStack()
    {
        //Set node values
        this->top = NULL;
        this->size = 0;
    }
    // Add node at the top of stack
    void push(int element)
    {
        this->top = new StackNode(element, this->top);
        this->size++;
    }
    bool isEmpty()
    {
        if (this->size > 0 && this->top != NULL)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    // Remove top element of stack
    void pop()
    {
        if (this->size > 0 && this->top != NULL)
        {
            StackNode *temp = this->top;
            // Change top element of stack
            this->top = temp->next;
            // remove previous top
            delete temp;
            temp = NULL;
            this->size--;
        }
    }
    // return top element of stack
    int peek()
    {
        return this->top->element;
    }
};
class SortStackElement
{
    public: 
    MyStack stack;
    SortStackElement()
    {
        this->stack = MyStack();
    }
    // Print element of stack
    void printData()
    {
        StackNode *temp = this->stack.top;
        while (temp != NULL)
        {
            // Display element value
            cout << "   " << temp->element;
            temp = temp->next;
        }
        cout << "\n";
    }
    // This is reverse the stack elements by using of another stack
    void reverseStack()
    {
        // Create auxiliary stack
        MyStack auxiliary = MyStack();
        int data = 0;
        // Executing the loop until when input element are not empty
        while (this->stack.isEmpty() == false)
        {
            // Get the top element of input stack
            data = this->stack.peek();
            // Remove top of current input stack
            this->stack.pop();
            // Add data to auxiliary stack
            auxiliary.push(data);
        }
        // Set auxiliary stack as new stack
        this->stack = auxiliary;
    }
};
int main()
{
    SortStackElement task = SortStackElement();
    // Add the stack element
    task.stack.push(1);
    task.stack.push(2);
    task.stack.push(4);
    task.stack.push(5);
    task.stack.push(6);
    task.stack.push(9);
    task.stack.push(11);
    /*
    Before Reverse
    =============
    11  <- Top 
    9  
    6  
    5  
    4  
    2  
    1
    */
    cout << "\n Before Reverse \n";
    task.printData();
    // reverse operation
    task.reverseStack();
    /*
    After Reverse
    =============
    1  <- Top 
    2  
    4  
    5  
    6  
    9  
    11
    */
    cout << "\n After Reverse \n";
    task.printData();
    return 0;
}

Output

 Before Reverse
   11   9   6   5   4   2   1

 After Reverse
   1   2   4   5   6   9   11
// Include namespace system
using System;
/*
   C# Program
   Reverse stack using another stack
*/
// Define stack node
public class StackNode
{
    public int element;
    public StackNode next;
    public StackNode(int element, StackNode next)
    {
        this.element = element;
        this.next = next;
    }
}
// Define a custom stack
public class MyStack
{
    public StackNode top;
    public int size;
    public MyStack()
    {
        //Set node values
        this.top = null;
        this.size = 0;
    }
    // Add node at the top of stack
    public void push(int element)
    {
        this.top = new StackNode(element, this.top);
        this.size++;
    }
    public Boolean isEmpty()
    {
        if (this.size > 0 && this.top != null)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    // Remove top element of stack
    public void pop()
    {
        if (this.size > 0 && this.top != null)
        {
            StackNode temp = this.top;
            // Change top element of stack
            this.top = temp.next;
            // remove previous top
            temp = null;
            this.size--;
        }
    }
    // return top element of stack
    public int peek()
    {
        return this.top.element;
    }
}
public class SortStackElement
{
    public MyStack stack;
    public SortStackElement()
    {
        this.stack = new MyStack();
    }
    // Print element of stack
    public void printData()
    {
        StackNode temp = this.stack.top;
        while (temp != null)
        {
            // Display element value
            Console.Write("   " + temp.element);
            temp = temp.next;
        }
        Console.Write("\n");
    }
    // This is reverse the stack elements by using of another stack
    public void reverseStack()
    {
        // Create auxiliary stack
        MyStack auxiliary = new MyStack();
        int data = 0;
        // Executing the loop until when input element are not empty
        while (this.stack.isEmpty() == false)
        {
            // Get the top element of input stack
            data = this.stack.peek();
            // Remove top of current input stack
            this.stack.pop();
            // Add data to auxiliary stack
            auxiliary.push(data);
        }
        // Set auxiliary stack as new stack
        this.stack = auxiliary;
    }
    public static void Main(String[] args)
    {
        SortStackElement task = new SortStackElement();
        // Add the stack element
        task.stack.push(1);
        task.stack.push(2);
        task.stack.push(4);
        task.stack.push(5);
        task.stack.push(6);
        task.stack.push(9);
        task.stack.push(11);
        /*
        Before Reverse
        =============
        11  <- Top 
        9  
        6  
        5  
        4  
        2  
        1
        */
        Console.Write("\n Before Reverse \n");
        task.printData();
        // reverse operation
        task.reverseStack();
        /*
        After Reverse
        =============
        1  <- Top 
        2  
        4  
        5  
        6  
        9  
        11
        */
        Console.Write("\n After Reverse \n");
        task.printData();
    }
}

Output

 Before Reverse
   11   9   6   5   4   2   1

 After Reverse
   1   2   4   5   6   9   11
<?php
/*
   Php Program
   Reverse stack using another stack
*/
// Define stack node
class StackNode
{
    public $element;
    public $next;

    function __construct($element, $next)
    {
        $this->element = $element;
        $this->next = $next;
    }
}
// Define a custom stack
class MyStack
{
    public $top;
    public $size;

    function __construct()
    {
        // Set node values
        $this->top = null;
        $this->size = 0;
    }
    // Add node at the top of stack
    public  function push($element)
    {
        $this->top = new StackNode($element, $this->top);
        $this->size++;
    }
    public  function isEmpty()
    {
        if ($this->size > 0 && $this->top != null)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    // Remove top element of stack
    public  function pop()
    {
        if ($this->size > 0 && $this->top != null)
        {
            $temp = $this->top;
            // Change top element of stack
            $this->top = $temp->next;
            // remove previous top
            $temp = null;
            $this->size--;
        }
    }
    // return top element of stack
    public  function peek()
    {
        return $this->top->element;
    }
}
class SortStackElement
{
    public $stack;

    function __construct()
    {
        $this->stack = new MyStack();
    }
    // Print element of stack
    public  function printData()
    {
        $temp = $this->stack->top;
        while ($temp != null)
        {
            // Display element value
            echo "   ". $temp->element;
            $temp = $temp->next;
        }
        echo "\n";
    }
    // This is reverse the stack elements by using of another stack
    public  function reverseStack()
    {
        // Create auxiliary stack
        $auxiliary = new MyStack();
        $data = 0;
        // Executing the loop until when input element are not empty
        while ($this->stack->isEmpty() == false)
        {
            // Get the top element of input stack
            $data = $this->stack->peek();
            // Remove top of current input stack
            $this->stack->pop();
            // Add data to auxiliary stack
            $auxiliary->push($data);
        }
        // Set auxiliary stack as new stack
        $this->stack = $auxiliary;
    }
}

function main()
{
    $task = new SortStackElement();
    // Add the stack element
    $task->stack->push(1);
    $task->stack->push(2);
    $task->stack->push(4);
    $task->stack->push(5);
    $task->stack->push(6);
    $task->stack->push(9);
    $task->stack->push(11);
    /*
    Before Reverse
    =============
    11  <- Top 
    9  
    6  
    5  
    4  
    2  
    1
    */
    echo "\n Before Reverse \n";
    $task->printData();
    // reverse operation
    $task->reverseStack();
    /*
    After Reverse
    =============
    1  <- Top 
    2  
    4  
    5  
    6  
    9  
    11
    */
    echo "\n After Reverse \n";
    $task->printData();
}
main();

Output

 Before Reverse
   11   9   6   5   4   2   1

 After Reverse
   1   2   4   5   6   9   11
/*
   Node Js Program
   Reverse stack using another stack
*/
// Define stack node
class StackNode
{
	constructor(element, next)
	{
		this.element = element;
		this.next = next;
	}
}
// Define a custom stack
class MyStack
{
	constructor()
	{
		//Set node values
		this.top = null;
		this.size = 0;
	}
	// Add node at the top of stack
	push(element)
	{
		this.top = new StackNode(element, this.top);
		this.size++;
	}
	isEmpty()
	{
		if (this.size > 0 && this.top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	pop()
	{
		if (this.size > 0 && this.top != null)
		{
			var temp = this.top;
			// Change top element of stack
			this.top = temp.next;
			// remove previous top
			temp = null;
			this.size--;
		}
	}
	// return top element of stack
	peek()
	{
		return this.top.element;
	}
}
class SortStackElement
{
	constructor()
	{
		this.stack = new MyStack();
	}
	// Print element of stack
	printData()
	{
		var temp = this.stack.top;
		while (temp != null)
		{
			// Display element value
			process.stdout.write("   " + temp.element);
			temp = temp.next;
		}
		process.stdout.write("\n");
	}
	// This is reverse the stack elements by using of another stack
	reverseStack()
	{
		// Create auxiliary stack
		var auxiliary = new MyStack();
		var data = 0;
		// Executing the loop until when input element are not empty
		while (this.stack.isEmpty() == false)
		{
			// Get the top element of input stack
			data = this.stack.peek();
			// Remove top of current input stack
			this.stack.pop();
			// Add data to auxiliary stack
			auxiliary.push(data);
		}
		// Set auxiliary stack as new stack
		this.stack = auxiliary;
	}
}

function main()
{
	var task = new SortStackElement();
	// Add the stack element
	task.stack.push(1);
	task.stack.push(2);
	task.stack.push(4);
	task.stack.push(5);
	task.stack.push(6);
	task.stack.push(9);
	task.stack.push(11);
	/*
			Before Reverse
			=============
			11  <- Top 
			9  
			6  
			5  
			4  
			2  
			1
			*/
	process.stdout.write("\n Before Reverse \n");
	task.printData();
	// reverse operation
	task.reverseStack();
	/*
			After Reverse
			=============
			1  <- Top 
			2  
			4  
			5  
			6  
			9  
			11
			*/
	process.stdout.write("\n After Reverse \n");
	task.printData();
}
main();

Output

 Before Reverse
   11   9   6   5   4   2   1

 After Reverse
   1   2   4   5   6   9   11
#  Python 3 Program
#  Reverse stack using another stack

#  Define stack node
class StackNode :
	
	def __init__(self, element, next) :
		self.element = element
		self.next = next
	

#  Define a custom stack
class MyStack :
	
	def __init__(self) :
		# Set node values
		self.top = None
		self.size = 0
	
	#  Add node at the top of stack
	def push(self, element) :
		self.top = StackNode(element, self.top)
		self.size += 1
	
	def isEmpty(self) :
		if (self.size > 0 and self.top != None) :
			return False
		else :
			return True
		
	
	#  Remove top element of stack
	def pop(self) :
		if (self.size > 0 and self.top != None) :
			temp = self.top
			#  Change top element of stack
			self.top = temp.next
			#  remove previous top
			temp = None
			self.size -= 1
		
	
	#  return top element of stack
	def peek(self) :
		return self.top.element
	

class SortStackElement :
	
	def __init__(self) :
		self.stack = MyStack()
	
	#  Print element of stack
	def printData(self) :
		temp = self.stack.top
		while (temp != None) :
			#  Display element value
			print("   ", temp.element, end = "")
			temp = temp.next
		
		print(end = "\n")
	
	#  This is reverse the stack elements by using of another stack
	def reverseStack(self) :
		#  Create auxiliary stack
		auxiliary = MyStack()
		data = 0
		#  Executing the loop until when input element are not empty
		while (self.stack.isEmpty() == False) :
			#  Get the top element of input stack
			data = self.stack.peek()
			#  Remove top of current input stack
			self.stack.pop()
			#  Add data to auxiliary stack
			auxiliary.push(data)
		
		#  Set auxiliary stack as new stack
		self.stack = auxiliary
	

def main() :
	task = SortStackElement()
	task.stack.push(1)
	task.stack.push(2)
	task.stack.push(4)
	task.stack.push(5)
	task.stack.push(6)
	task.stack.push(9)
	task.stack.push(11)
	# 
	# 		Before Reverse
	# 		=============
	# 		11  <- Top 
	# 		9  
	# 		6  
	# 		5  
	# 		4  
	# 		2  
	# 		1
	# 		
	
	print("\n Before Reverse ")
	task.printData()
	#  reverse operation
	task.reverseStack()
	# 
	# 		After Reverse
	# 		=============
	# 		1  <- Top 
	# 		2  
	# 		4  
	# 		5  
	# 		6  
	# 		9  
	# 		11
	# 		
	
	print("\n After Reverse ")
	task.printData()

if __name__ == "__main__": main()

Output

 Before Reverse
    11    9    6    5    4    2    1

 After Reverse
    1    2    4    5    6    9    11
#  Ruby Program
#  Reverse stack using another stack

#  Define stack node
class StackNode  
	# Define the accessor and reader of class StackNode  
	attr_reader :element, :next
	attr_accessor :element, :next
 
	
	def initialize(element, nextNode) 
		self.element = element
		self.next = nextNode
	end

end

#  Define a custom stack
class MyStack  
	# Define the accessor and reader of class MyStack  
	attr_reader :top, :size
	attr_accessor :top, :size
 
	
	def initialize() 
		# Set node values
		self.top = nil
		self.size = 0
	end

	#  Add node at the top of stack
	def push(element) 
		self.top = StackNode.new(element, self.top)
		self.size += 1
	end

	def isEmpty() 
		if (self.size > 0 && self.top != nil) 
			return false
		else 
			return true
		end

	end

	#  Remove top element of stack
	def pop() 
		if (self.size > 0 && self.top != nil) 
			temp = self.top
			#  Change top element of stack
			self.top = temp.next
			#  remove previous top
			temp = nil
			self.size -= 1
		end

	end

	#  return top element of stack
	def peek() 
		return self.top.element
	end

end

class SortStackElement  
	# Define the accessor and reader of class SortStackElement  
	attr_reader :stack
	attr_accessor :stack
 
	
	def initialize() 
		self.stack = MyStack.new()
	end

	#  Print element of stack
	def printData() 
		temp = self.stack.top
		while (temp != nil) 
			#  Display element value
			print("   ", temp.element)
			temp = temp.next
		end

		print("\n")
	end

	#  This is reverse the stack elements by using of another stack
	def reverseStack() 
		#  Create auxiliary stack
		auxiliary = MyStack.new()
		data = 0
		#  Executing the loop until when input element are not empty
		while (self.stack.isEmpty() == false) 
			#  Get the top element of input stack
			data = self.stack.peek()
			#  Remove top of current input stack
			self.stack.pop()
			#  Add data to auxiliary stack
			auxiliary.push(data)
		end

		#  Set auxiliary stack as new stack
		self.stack = auxiliary
	end

end

def main() 
	task = SortStackElement.new()
	task.stack.push(1)
	task.stack.push(2)
	task.stack.push(4)
	task.stack.push(5)
	task.stack.push(6)
	task.stack.push(9)
	task.stack.push(11)
	# 
	# 		Before Reverse
	# 		=============
	# 		11  <- Top 
	# 		9  
	# 		6  
	# 		5  
	# 		4  
	# 		2  
	# 		1
	# 		
	
	print("\n Before Reverse \n")
	task.printData()
	#  reverse operation
	task.reverseStack()
	# 
	# 		After Reverse
	# 		=============
	# 		1  <- Top 
	# 		2  
	# 		4  
	# 		5  
	# 		6  
	# 		9  
	# 		11
	# 		
	
	print("\n After Reverse \n")
	task.printData()
end

main()

Output

 Before Reverse 
   11   9   6   5   4   2   1

 After Reverse 
   1   2   4   5   6   9   11
/*
   Scala Program
   Reverse stack using another stack
*/
// Define stack node
class StackNode(var element: Int , var next: StackNode)
{
}
// Define a custom stack
class MyStack(var top: StackNode , var size: Int)
{
    def this()
    {
        this(null, 0);
    }
    // Add node at the top of stack
    def push(element: Int): Unit = {
        this.top = new StackNode(element, this.top);
        this.size += 1;
    }
    def isEmpty(): Boolean = {
        if (this.size > 0 && this.top != null)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    // Remove top element of stack
    def pop(): Unit = {
        if (this.size > 0 && this.top != null)
        {
            var temp: StackNode = this.top;
            // Change top element of stack
            this.top = temp.next;
            // remove previous top
            temp = null;
            this.size -= 1;
        }
    }
    // return top element of stack
    def peek(): Int = {
        return this.top.element;
    }
}
class SortStackElement(var stack: MyStack)
{
    def this()
    {
        this(new MyStack());
    }
    // Print element of stack
    def printData(): Unit = {
        var temp: StackNode = this.stack.top;
        while (temp != null)
        {
            // Display element value
            print("   " + temp.element);
            temp = temp.next;
        }
        print("\n");
    }
    // This is reverse the stack elements by using of another stack
    def reverseStack(): Unit = {
        // Create auxiliary stack
        var auxiliary: MyStack = new MyStack();
        var data: Int = 0;
        // Executing the loop until when input element are not empty
        while (this.stack.isEmpty() == false)
        {
            // Get the top element of input stack
            data = this.stack.peek();
            // Remove top of current input stack
            this.stack.pop();
            // Add data to auxiliary stack
            auxiliary.push(data);
        }
        // Set auxiliary stack as new stack
        this.stack = auxiliary;
    }
}
object Main
{
    def main(args: Array[String]): Unit = {
        var task: SortStackElement = new SortStackElement();
        // Add the stack element
        task.stack.push(1);
        task.stack.push(2);
        task.stack.push(4);
        task.stack.push(5);
        task.stack.push(6);
        task.stack.push(9);
        task.stack.push(11);
        /*
        Before Reverse
        =============
        11  <- Top 
        9  
        6  
        5  
        4  
        2  
        1
        */
        print("\n Before Reverse \n");
        task.printData();
        // reverse operation
        task.reverseStack();
        /*
        After Reverse
        =============
        1  <- Top 
        2  
        4  
        5  
        6  
        9  
        11
        */
        print("\n After Reverse \n");
        task.printData();
    }
}

Output

 Before Reverse
   11   9   6   5   4   2   1

 After Reverse
   1   2   4   5   6   9   11
/*
   Swift 4 Program
   Reverse stack using another stack
*/
// Define stack node
class StackNode
{
    var element: Int;
    var next: StackNode? ;
    init(_ element: Int, _ next: StackNode? )
    {
        self.element = element;
        self.next = next;
    }
}
// Define a custom stack
class MyStack
{
    var top: StackNode? ;
    var size: Int;
    init()
    {
        //Set node values
        self.top = nil;
        self.size = 0;
    }
    // Add node at the top of stack
    func push(_ element: Int)
    {
        self.top = StackNode(element, self.top);
        self.size += 1;
    }
    func isEmpty()->Bool
    {
        if (self.size > 0 && self.top != nil)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    // Remove top element of stack
    func pop()
    {
        if (self.size > 0 && self.top != nil)
        {
            var temp: StackNode? = self.top;
            // Change top element of stack
            self.top = temp!.next;
            // remove previous top
            temp = nil;
            self.size -= 1;
        }
    }
    // return top element of stack
    func peek()->Int
    {
        return self.top!.element;
    }
}
class SortStackElement
{
    var stack: MyStack;
    init()
    {
        self.stack = MyStack();
    }
    // Print element of stack
    func printData()
    {
        var temp: StackNode? = self.stack.top;
        while (temp != nil)
        {
            // Display element value
            print("   ", temp!.element, terminator: "");
            temp = temp!.next;
        }
        print(terminator: "\n");
    }
    // This is reverse the stack elements by using of another stack
    func reverseStack()
    {
        // Create auxiliary stack
        let auxiliary: MyStack = MyStack();
        var data: Int = 0;
        // Executing the loop until when input element are not empty
        while (self.stack.isEmpty() == false)
        {
            // Get the top element of input stack
            data = self.stack.peek();
            // Remove top of current input stack
            self.stack.pop();
            // Add data to auxiliary stack
            auxiliary.push(data);
        }
        // Set auxiliary stack as new stack
        self.stack = auxiliary;
    }
}
func main()
{
    let task: SortStackElement = SortStackElement();
    // Add the stack element
    task.stack.push(1);
    task.stack.push(2);
    task.stack.push(4);
    task.stack.push(5);
    task.stack.push(6);
    task.stack.push(9);
    task.stack.push(11);
    /*
    Before Reverse
    =============
    11  <- Top 
    9  
    6  
    5  
    4  
    2  
    1
    */
    print("\n Before Reverse ");
    task.printData();
    // reverse operation
    task.reverseStack();
    /*
    After Reverse
    =============
    1  <- Top 
    2  
    4  
    5  
    6  
    9  
    11
    */
    print("\n After Reverse ");
    task.printData();
}
main();

Output

 Before Reverse
    11    9    6    5    4    2    1

 After Reverse
    1    2    4    5    6    9    11
/*
   Kotlin Program
   Reverse stack using another stack
*/
// Define stack node
class StackNode
{
    var element: Int;
    var next: StackNode ? ;
    constructor(element: Int, next: StackNode ? )
    {
        this.element = element;
        this.next = next;
    }
}
// Define a custom stack
class MyStack
{
    var top: StackNode ? ;
    var size: Int;
    constructor()
    {
        //Set node values
        this.top = null;
        this.size = 0;
    }
    // Add node at the top of stack
    fun push(element: Int): Unit
    {
        this.top = StackNode(element, this.top);
        this.size += 1;
    }
    fun isEmpty(): Boolean ?
    {
        if (this.size>0 && this.top != null)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    // Remove top element of stack
    fun pop(): Unit
    {
        if (this.size>0 && this.top != null)
        {
            var temp: StackNode ? = this.top;
            // Change top element of stack
            this.top = temp?.next;
            this.size -= 1;
        }
    }
    // return top element of stack
    fun peek(): Int
    {
        return this.top!!.element;
    }
}
class SortStackElement
{
    var stack: MyStack;
    constructor()
    {
        this.stack = MyStack();
    }
    // Print element of stack
    fun printData(): Unit
    {
        var temp: StackNode ? = this.stack.top;
        while (temp != null)
        {
            // Display element value
            print("   " + temp.element);
            temp = temp.next;
        }
        print("\n");
    }
    // This is reverse the stack elements by using of another stack
    fun reverseStack(): Unit
    {
        // Create auxiliary stack
        var auxiliary: MyStack = MyStack();
        var data: Int ;
        // Executing the loop until when input element are not empty
        while (this.stack.isEmpty() == false)
        {
            // Get the top element of input stack
            data = this.stack.peek();
            // Remove top of current input stack
            this.stack.pop();
            // Add data to auxiliary stack
            auxiliary.push(data);
        }
        // Set auxiliary stack as new stack
        this.stack = auxiliary;
    }
}
fun main(args: Array<String>): Unit
{
    var task: SortStackElement = SortStackElement();
    // Add the stack element
    task.stack.push(1);
    task.stack.push(2);
    task.stack.push(4);
    task.stack.push(5);
    task.stack.push(6);
    task.stack.push(9);
    task.stack.push(11);
    /*
    Before Reverse
    =============
    11  <- Top 
    9  
    6  
    5  
    4  
    2  
    1
    */
    print("\n Before Reverse \n");
    task.printData();
    // reverse operation
    task.reverseStack();
    /*
    After Reverse
    =============
    1  <- Top 
    2  
    4  
    5  
    6  
    9  
    11
    */
    print("\n After Reverse \n");
    task.printData();
}

Output

 Before Reverse
   11   9   6   5   4   2   1

 After Reverse
   1   2   4   5   6   9   11


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