stack problem. help!!

[hdyh]

I want to display input,delete and show in stack, but there a problem in switch case loop, expected before int please help me.

  
#include <iostream>
using namespace std;

class node
{
	public:
   int data;
   node *next;
   
   
};
 
class stack
{
   private:
   
	   node *top;
       node *head;
       
       
   public:
      stack() // constructor
      {
          top=NULL;
      }
      void push(int); // to insert an element
      void pop();  // to delete an element
      void show(); // to show the stack
      bool isEmpty ();
      int stackTop ();
      
};

void stack::push(int item)
{
	
	node *newnode;
	newnode =new (node);
	if(newnode==NULL)
       cout<<"cannot allocate memory" <<endl;
	else
	{	
		newnode ->data= item;
		newnode ->next= head;
		head = newnode;
	}
}

int stack::stackTop()
{ 
	if (isEmpty())
	cout <<"Sorry,Stack is still empty!"<<endl;
	else
	return head->data;
} 

void stack::pop()
{ 
	node *delnode;
	if (isEmpty())
	cout <<"Sorry, Cannot pop item from stack.Stack is still empty!" <<endl;
	else
	{ 
		delnode = head;
	cout << "Item to be popped from stack is: " << stackTop()<<endl;
	head = delnode->next;
	delete(delnode);
	}
} 

void stack::show()
{
     node *top;
     while(top>=0)
     {
          cout<<"[top]"<<endl;
          top--;
     }
}

int main()
{
   stack s;
   int choice;
   while(1)
   {
      cout<<"\n";
      cout<<"\n\t\tSTACK MENU\n\n";
              cout<<"1:PUSH, 2:POP, 3:SHOW STACK, 4:EXIT";
      cout<<"\nChoose the menu: ";
      cin>>choice;
      switch(choice)
      {
         case 1:
                   s.push(int);
                   break;
         case 2:
                   s.pop();
                   break;
         case 3:
                   s.show();
                   break;
         case 4:
                   exit(0);
                   break;
         default:
                   cout<<"Please choose correct menu!";
                   break;
       }
   }
 return 0;
}

[coder777]

You need another cin where the user enters the value to push:

      switch(choice)
      {
         case 1:
         {
                   int value;
                   cout<<"\nValue: ";
                   cin>>choice;
                   s.push(value);
                   break;
         }