Hello, I am newbie of C++
Below is my code, I want to implement the function "printall " to print out the " contact" data in Dlinked_list. but I faced a problem to call out the function of class "Contact" of "print".
for example:
list.insert(new Contact("Ada", "ada@ust.hk", "12345678"));
then the "Contact" data in inside the class.
But how can I print out the data of "contact"?
Thank you!
#include <iostream>
#include "contact.h"
#include "dlinked_list.h"
int main()
{
printf("#####Test begins:#####\n");
Dlinked_list list;
printf("Insert %u contacts.\n", 2);
list.insert(new Contact("Ada", "ada@ust.hk", "12345678"));
list.printAll();
return 0;
}#ifndef _dlinked_list_
#define _dlinked_list_
#include "contact.h"
/* The definition of the struct of doubly-linked list node.
struct is used for simplicity.
*/
typedef struct DLL_node {
DLL_node *prev;
DLL_node *next;
Contact *contact;
} DLL_node;
// end of DLL_node struct definition
/* The definition of the class of doubly-linked list.
Functions are defined as prototypes here.
*/
class Dlinked_list {
public:
// Default constructor
Dlinked_list();
// Destructor
~Dlinked_list();
// Append a node in the end of the linked list
int insert(Contact *c);
// Append a node at the indexed position of the linked list
/* int insertAt(Contact *c, int index);
// Remove the first node of the linked list
int remove();
// Delete the node at the indexed position of the linked list
int removeAt(int index);
// Return the index of the first occurrence of the matching node
int indexOf(const char* name);
// Return the minimum index of the nodes with a lexigraphically larger "name"
int indexOfMin(const char * name);
*/
// Display contents of all the nodes
void printAll();
/*
// Display content of the indexed node
void printAt(int index);
// Display contents of all the nodes in reverse order
void printReverse();
// Remove all the nodes from the linked list
void clear();
// Return number of nodes in the linked list
int length();
// Indicates whether the linked list has no nodes or not
bool isEmpty();
*/
private:
// Pointer to the head of the linked list
DLL_node *head;
// Pointer to the tail of the linked list
DLL_node *tail;
// Size of the linked list
int size;
}; // end of Dlinked_list class definition
#endif#ifndef _contact_
#define _contact_
#include <iostream>
using namespace std;
#include <string.h>
class Contact {
public:
// Default constructor
Contact() {
strcpy(name, "no name");
strcpy(email, "nosuchperson@ust.hk");
strcpy(phone, "12345678");
};
// Parametric constructor
Contact(char* n, char *e, char *p) {
strcpy(name, n);
strcpy(email, e);
strcpy(phone, p);
};
// Destructor
~Contact() { /* Do nothing */ };
// Getter
char* getName() { return name; }
// Getter
char* getEmail() { return email; }
// Getter
char* getPhone() { return phone; }
// Setter
void setName(const char* n) { strcpy(name, n); }
// Setter
void setEmail(const char* e) { strcpy(email, e); }
// Setter
void setPhone(const char* p) { strcpy(phone, p); }
// Display content
void print() {
cout << " Name: " << name << endl;
cout << "email: " << email << endl;
cout << "Phone: " << phone << endl;
}
private:
char name[30];
char email[30];
char phone[10];
}; // end of Contact class definition
#endif