Oh.. My final Project part.5

.hi guys..
.we meet again.. hahhahaha..
.sok yes w..
.now i just wanna post my code of linkedlist here..
.so if i have mistakes.. pease any body help me..



#include "iostream"
#include "Hmm.h"

void LinkedList::add(std::string x)
{
    node *a;
    a = b;
    b = new node;
    b->lagu = x;
    b->link = a;
    display ();
}
void LinkedList::del(std::string x)
{
    node *a, *c;
    a = b;
    if (a->lagu == x)
    {
        b = a->link;
        delete a;
        return 0;
    }
    c = a;
    while (a != NULL)
    {
        if (a->lagu == x)
        {
            c->link = a->link;
            delete a;
            return 0;
        }
        c = a;
        a = a->link;
    }
}
void LinkedList::display()
{
    node *a;
    a = b;
    if (a == NULL)
    {
        return 0;
    }
    while (q != NULL)
    {
        cout << a->lagu;
        a = a->link;
    }
}
LinkedList::~LinkedList()
{
    node *a;
    if(b == NULL)
    {
        return 0;
    }
    while(b != NULL)
    {
        a = b->link;
        delete b;
        b = a;
    }
}


.that's the code of linkedlist Hmm.cpp.. i dont know again.. what the name is suitable with that.. i'm so confused when named it.. hahhaha..

.and this is the header Hmm.h..
#include "iostream"
using namespace std;

class LinkedList
{
private :
    string lagu;
    node *link;

public :
    void add (string);
    void del (string);
    void display ();
    ~LinkedList (); 
 
.and for every body.. if u can make the code of Linkedlist in Linkedlist.. please help me... i need ur help.. T^T
.please..
.Okok.. just it.. i will wait u to help me guys.. ^^