Hi, I need to convert this class code to template class code. I already have the

Question

Hi, I need to convert this class code to template class code. I already have the main code

#include <iostream>

using namespace std;

class List
{
struct Node
{
int data;
Node * next;
};

Node * head;

public:
List()
{
head = NULL;
}

~List()
{ // delete the list
while(head != NULL)
{
Node * n = head->next;
delete head;
head = n;
}
}

void add(int value)
{
Node * n = new Node;
n->data = value;
n->next = head;
head = n;
}

void show()
{
while(head !=NULL)
{
Node * n = head->next;
cout<< head->data <<", ";head = n;
}
cout << endl;
}
};

Explanation / Answer

#include <iostream>

using namespace std;

template <class T>
class List{
struct Node{
T data;
Node * next;
};
Node *head;

public:
List(){
head = NULL;
}

~List(){ // delete the list
while(head != NULL){
Node * n = head->next;
delete head;
head = n;
}
}

void add(T value){
Node * n = new Node;
n->data = value;
n->next = head;
head = n;
}

void show(){
while(head !=NULL){
Node * n = head->next;
cout<< head->data <<", ";head = n;
}
cout << endl;
}
};

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