C + + Learning notes--template __c++

Stacktp.h--A stack template

#ifndef stacktp_h_
#define STACKTP_H_
template <class type>
class Stack
{
private:
	enum {MAX = ten};
	Type Items[max];
	int top;	Index for top stack item public
:
	stack ();
	BOOL IsEmpty ();
	BOOL Isfull ();
	BOOL Push (const TYPE & Item);
	BOOL Pop (Type & Item);
Template <class type>
stack<type>::stack ()
{top
	= 0;
}
Template <class type>
bool Stack<type>::isempty ()
{return top
	= 0;
}
Template <class type>
bool Stack<type>::isfull ()
{return top
	= MAX;
}
Template <class type>
bool stack<type>::p ush (const Type & Item)
{
	if (Top < MAX)
	{
		items[top++] = Item;
		return true;
	}
	else return
		false;
Template <class type>
bool Stack<type>::p OP (Type & Item)
{
	if (Top > 0)
	{
		item = Items[--top];
		return true;
	}
	else return
		false;
#endif

Stacktem.cpp--Testing teh template Stack class

#include <iostream> #include <string> #include <cctype> #include "stacktp.h" using namespace std;
	int main () {stack<string> st;
	Char ch;
	String po;
	cout << "Please enter a to add a purchase order,\n" << "P-Process a PO, or Q to quit.\n";
		while (CIN >> ch && toupper (ch)!= ' Q ') {while (Cin.get ()!= ' \ n ') continue;
		if (!isalpha (CH)) continue;
				Switch (CH) {case ' a ': Case ' a ': cout << "Enter A PO number to add:";
				CIN >> PO;
				if (St.isfull ()) cout << "Stack already full\n";
				else St.push (PO);
			Break
				Case ' P ': Case ' P ': if (St.isempty ()) cout << "Stack already empty\n";
					else {st.pop (PO);
					cout << "PO #" << po << "popped\n";
				Break
	} cout << "Please enter a to add a purchase order,\n" << "P to process a PO, or Q to quit.\n";
	} cout << "bye\n";
return 0; }

Output:

wang@wang:~/c++$./a.out
Please enter a to add a purchase order,
P to process a PO, or Q to quit.
A
Enter a PO number to Add:red911porsche
Please enter a to add a purchase order,
P to process a PO, or Q to quit.
P
PO #red911porsche popped
Please enter a to add a purchase order,
P to process a PO, or Q to quit.
P
Stack already empty
Please enter a to add a purchase order,
P to process a PO, or Q to quit.
Q
Bye