Question

(In C)

8.12 LAB: Warm up: Contacts

You will be building a linked list. Make sure to keep track of both the head and tail nodes.

(1) Create three files to submit.

• ContactNode.h - Struct definition, including the data members and related function declarations
• ContactNode.c - Related function definitions
• main.c - main() function

(2) Build the ContactNode struct per the following specifications:

• Data members
• char contactName[50]
• char contactPhoneNum[50]
• struct ContactNode* nextNodePtr
• Related functions
• CreateContactNode() (2 pt)
• InsertContactAfter() (2 pts)
  • Insert a new node after node
• GetNextContact() (1 pt)
  • Return location pointed by nextNodePtr
• PrintContactNode()

Ex. of PrintContactNode() output:

Name: Roxanne Hughes
Phone number: 443-555-2864

(3) In main(), prompt the user for three contacts and output the user's input. Create three ContactNodes and use the nodes to build a linked list. (2 pts)

Ex:

Person 1
Enter name:
Roxanne Hughes
Enter phone number:
443-555-2864
You entered: Roxanne Hughes, 443-555-2864

Person 2
Enter name:
Juan Alberto Jr.
Enter phone number:
410-555-9385
You entered: Juan Alberto Jr., 410-555-9385

Person 3
Enter name:
Rachel Phillips
Enter phone number:
310-555-6610
You entered: Rachel Phillips, 310-555-6610

(4) Output the linked list. (2 pts)

Ex:

CONTACT LIST
Name: Roxanne Hughes
Phone number: 443-555-2864

Name: Juan Alberto Jr.
Phone number: 410-555-9385

Name: Rachel Phillips
Phone number: 310-555-6610

-----------------------------------------------------------------------

Given templates:

Current file: main.c

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

#include "ContactNode.h"

int main(void) {

/* Type code here */
  
return 0;
}

Current file: ContactNode.c

/* Type code here */

Current file: ContactNode.h

/* Type code here */

Answer 1

`Hey,

Note: Brother in case of any queries, just comment in box I would be very happy to assist all your queries

//main.c
#include <stdio.h>
#include <stdlib.h>
#include<string.h>
#include "ContactNode.h"

int main(int argc, char* argv[])
{

ContactNode* person[3] = {NULL, NULL, NULL};
for(int i=0; i<=2; i++)
{
ContactNode temp;
printf("Person %d\n", i+1);
printf("Enter name:\n");
fgets(temp.contactName, 50, stdin);
temp.contactName[strlen(temp.contactName)-1]='\0';
printf("Enter phone number:\n");
fgets(temp.contactPhoneNum, 50, stdin);
temp.contactPhoneNum[strlen(temp.contactPhoneNum)-1]='\0';
printf("You entered: %s, %s\n\n", temp.contactName, temp.contactPhoneNum);
person[i]=(ContactNode*)malloc(sizeof(ContactNode));
*person[i]=CreateContactNode(person[i], temp.contactName, temp.contactPhoneNum, NULL);
}
InsertContactAfter(person[0], person[1]);
InsertContactAfter(person[1], person[2]);
printf("CONTACT LIST\n");
PrintContactNode(person[0]);
PrintContactNode(person[1]);
PrintContactNode(person[2]);
return 0;
}

//ContactNode.h

#ifndef CONTACTNODE
#define CONTACTNODE
#define NUM = 3
#include <string.h>
typedef struct ContactNode
{
char contactName[50];
char contactPhoneNum[50];
struct ContactNode* nextNodePtr;
}ContactNode;

ContactNode CreateContactNode(struct ContactNode* contact, char name[], char number[], ContactNode* address);
void InsertContactAfter(ContactNode* contact, ContactNode* nextcontact);
ContactNode* GetNextContact(ContactNode* contact);
void PrintContactNode(const ContactNode* contact);

#endif

//ContactNode.c

#include <stdio.h>
#include <stdlib.h>
#include "ContactNode.h"

ContactNode CreateContactNode(struct ContactNode* contact, char name[50], char number[50], ContactNode* address)
{

strcpy(contact->contactName, name);
strcpy(contact->contactPhoneNum, number);
contact->nextNodePtr=address;

return *contact;
}
void InsertContactAfter(ContactNode* contact, ContactNode* nextcontact)
{
ContactNode* tmpNext = NULL;
tmpNext = contact->nextNodePtr;
contact->nextNodePtr = nextcontact;
nextcontact->nextNodePtr = tmpNext;
return;
}
ContactNode* GetNextContact(ContactNode* contact)
{
return contact->nextNodePtr;
}
void PrintContactNode(const ContactNode* contact)
{
printf("Name: %s\n", contact->contactName);
// printf("Phone number: %s\n\n", contact->contactPhoneNum);//same as above
return;
}

Kindly revert for any queries

Thanks.