#ifndef STACK_H_
#define STACK_H_

#include "Node.h";

using namespace std;

class Stack {
 public:
  // create an empty stack
  Stack();

  // copy constructor for a stack
  Stack(const Stack & orig);
		
  // destroy nodes in stack
  ~Stack();

  Stack & operator= (const Stack & rhs);
				
  // push elt on the stack
  void push(string elt);
			
  // pop elt from the stack
  void pop();
		
  // return top element from the stack
  string top() const;
		
  bool isEmpty() const;

  void clear();

  int size() const;

  void printString() const;
		
 private:
  Node * head;
  int theSize;
};

#endif /*STACK_H_*/