in C programming Add additional functionality to your phonebook program from lab

Question

in C programming Add additional functionality to your phonebook program from lab# 6. Make it possible for users to: 1) Alphabetically sort the list of entries by name (first or last). 2) Find a phone number for a given name. 3) Randomly select a friend from the phonebook for you to call. 4) Delete everyone from the phonebook at the same time.

Here is my current code if someone could help me out with a complete code

#include<stdio.h>

#include<stdlib.h>

#include<string.h>

// create a struct

struct phonebook{

    char fname[20];

    char lname[20];

    char phone[8];

};

void addfriend(struct phonebook **, int *);

void deletefriend(struct phonebook **, int);

void showPhonebook(struct phonebook **);

int main()

{

    int i;

    // create an array of type struct phonebook

    struct phonebook **arr = (struct phonebook **)malloc(50 * sizeof(struct phonebook *));

    // index at which new entry is to be added

    int index = 0;

    // set all entries of arr to NULL

    for( i = 0 ; i < 50 ; i++ )

        arr[i] = NULL;

    while(1)

    {

        printf("Enter one of the following options ... ");

        printf("1) Add friend 2) Delete friend 3) Show phone book 4) Quit ");

        int option;

        scanf("%d",&option);

        switch(option)

        {

            case 1 : addfriend(arr, &index);

                     break;

            case 2 : deletefriend(arr, index);

                     break;

            case 3 : showPhonebook(arr);

                     break;

            default : exit(0);

        }

    }

   return 0;

}

void addfriend(struct phonebook **arr, int *index)

{

    struct phonebook *temp = (struct phonebook *)malloc(sizeof(struct phonebook));

    printf("Enter the name of friend ");

    scanf("%s%s", temp->fname, temp->lname);

    printf("Enter the phone number ");

    scanf("%s", temp->phone);

    arr[*index] = temp;

    (*index)++;

}

void deletefriend(struct phonebook **arr, int index)

{

    char f[20], l[20];

    printf("Enter the name of friend ");

    scanf("%s%s", f, l);

    int i;

    // find the required contact

    for( i = 0 ; i < 50 ; i++ )

        // if contact is found

        if(arr[i] && !strcmp(arr[i]->fname, f) && !strcmp(arr[i]->lname, l))

            // set that element to NULL

            arr[i] = NULL;

}

void showPhonebook(struct phonebook **arr)

{

    int i;

    for( i = 0 ; i < 50 ; i++ )

        // if element is not NULL

        if(arr[i])

            printf("Name : %s %s Phone Number : %s ",arr[i]->fname, arr[i]->lname, arr[i]->phone);

}

Explanation / Answer

I have created the required functions to perform the tasks as per your request kindly add these functions to your program and do not forget to add #include time.h and string.h in your header .
void sortPhonebook(struct phonebook **arr)
{
{
int i,j,k;
struct phonebook t;
for(i=1;i {
for(j=0;j {
if(strcmpi(arr[j].fname,arr[i].fname)>0)
{
t=arr[j];
arr[j]=arr[i];
for(k=i;k>j;k--)
arr[k]=arr[k-1];

arr[k+1]=t;
}
}
}
}
}

void searchContact( struct phonebook ** arr)
{
int i;
char f[20], char l[20]
printf("Enter the name for which you want to search phone number")
scanf("%s%s", f ,l)
for ( i=0; i<50;i++)
{
if ( strcmp(arr[i].fname,f)==0 && strcmp(arr[i].lname,f)==0)
printf("contact number %s/n" , arr[i]. phone)
}
}

void randomName(struct phonebook **arr)
{

const int numberOfWords = Size;
for (; ;)
{
srand((unsigned)time(NULL)); //generate a random seed based on time so it's different every time!
int ran = rand()% numberOfWords;
//Generate a random number between 0 to numberOfWords - 1
printf("%s%s", arr.fname[ran],arr.lname[ran]);
}
}

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.