Phone Book Application C Language Project

Introduction

This C Phonebook small project enables you to do basic Phonebook operations much as you would on your phone. Phonebook-related records may be added, listed, modified, searched, and deleted. Almost every function in this little project makes substantial use of file management and data structure ideas.

Phonebook is a simple C mini-project that will teach you the fundamentals of functions, file handling, and data structure. This program will show you how to add, list, change, edit, search, and remove data from and into a file.

Source Code for Phone Book Application C Language Project

#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
#include<windows.h>
struct person
{
    char name[35];
    char address[50];
     char father_name[35];
     char mother_name[30];
    long int mble_no;
    char sex[8];
    char mail[100];
    char citision_no[20];

    };
void menu();
void got();
void start();
void back();
void addrecord();
void listrecord();
void modifyrecord();
void deleterecord();
void searchrecord();
int main()
{
    system("color 5f");
    start();
    return 0;
}
void back()
{
    start();
}
void start()
{
    menu();
}
void menu()
{
    system("cls");
printf("\t\t**********WELCOME TO PHONEBOOK*************");

printf("\n\n\t\t\t  MENU\t\t\n\n");
printf("\t1.Add New   \t2.List   \t3.Exit  \n\t4.Modify \t5.Search\t6.Delete");

switch(getch())
{
    case '1':

                addrecord();
    break;
   case '2': listrecord();
    break;
    case '3': exit(0);
    break;
    case '4': modifyrecord();
    break;
    case '5': searchrecord();
    break;
    case '6': deleterecord();
    break;
    default:
                system("cls");
                printf("\nEnter 1 to 6 only");
                printf("\n Enter any key");
                getch();

menu();
}
}
        void addrecord()
{
        system("cls");
        FILE *f;
        struct person p;
        f=fopen("project","ab+");
        printf("\n Enter name: ");
        got(p.name);
        printf("\nEnter the address: ");
        got(p.address);
        printf("\nEnter father name: ");
        got(p.father_name);
        printf("\nEnter mother name: ");
        got(p.mother_name);
        printf("\nEnter phone no.:");
        scanf("%ld",&p.mble_no);
        printf("Enter sex:");
        got(p.sex);
        printf("\nEnter e-mail:");
         got(p.mail);
        printf("\nEnter citizen no:");
        got(p.citision_no);
        fwrite(&p,sizeof(p),1,f);

      fflush(stdin);
        printf("\nrecord saved");

fclose(f);

    printf("\n\nEnter any key");

	 getch();
    system("cls");
    menu();
}
void listrecord()
{
    struct person p;
    FILE *f;
f=fopen("project","rb");
if(f==NULL)
{
printf("\nfile opening error in listing :");

exit(1);
}
while(fread(&p,sizeof(p),1,f)==1)
{
     printf("\n\n\n YOUR RECORD IS\n\n ");
        printf("\nName=%s\nAdress=%s\nFather name=%s\nMother name=%s\nMobile no=%ld\nSex=%s\nE-mail=%s\nCitizen no=%s",p.name,p.address,p.father_name,p.mother_name,p.mble_no,p.sex,p.mail,p.citision_no);

	 getch();
	 system("cls");
}
fclose(f);
 printf("\n Enter any key");
 getch();
    system("cls");
menu();
}
void searchrecord()
{
    struct person p;
FILE *f;
char name[100];

f=fopen("project","rb");
if(f==NULL)
{
    printf("\n error in opening\a\a\a\a");
    exit(1);

}
printf("\nEnter name of person to search\n");
got(name);
while(fread(&p,sizeof(p),1,f)==1)
{
    if(strcmp(p.name,name)==0)
    {
        printf("\n\tDetail Information About %s",name);
        printf("\nName:%s\naddress:%s\nFather name:%s\nMother name:%s\nMobile no:%ld\nsex:%s\nE-mail:%s\nCitision no:%s",p.name,p.address,p.father_name,p.mother_name,p.mble_no,p.sex,p.mail,p.citision_no);
    }
        else
        printf("file not found");

}
 fclose(f);
  printf("\n Enter any key");

	 getch();
    system("cls");
menu();
}
void deleterecord()
{
    struct person p;
    FILE *f,*ft;
	int flag;
	char name[100];
	f=fopen("project","rb");
	if(f==NULL)
		{

			printf("CONTACT'S DATA NOT ADDED YET.");

		}
	else
	{
		ft=fopen("temp","wb+");
		if(ft==NULL)

            printf("file opaning error");
		else

        {


		printf("Enter CONTACT'S NAME:");
		got(name);

		fflush(stdin);
		while(fread(&p,sizeof(p),1,f)==1)
		{
			if(strcmp(p.name,name)!=0)
				fwrite(&p,sizeof(p),1,ft);
			if(strcmp(p.name,name)==0)
                flag=1;
		}
	fclose(f);
	fclose(ft);
	if(flag!=1)
	{
		printf("NO CONACT'S RECORD TO DELETE.");
		remove("temp.txt");
	}
		else
		{
			remove("project");
			rename("temp.txt","project");
			printf("RECORD DELETED SUCCESSFULLY.");

		}
	}
}
 printf("\n Enter any key");

	 getch();
    system("cls");
menu();
}

void modifyrecord()
{
    int c;
    FILE *f;
    int flag=0;
    struct person p,s;
	char  name[50];
	f=fopen("project","rb+");
	if(f==NULL)
		{

			printf("CONTACT'S DATA NOT ADDED YET.");
			exit(1);


		}
	else
	{
	    system("cls");
		printf("\nEnter CONTACT'S NAME TO MODIFY:\n");
            got(name);
            while(fread(&p,sizeof(p),1,f)==1)
            {
                if(strcmp(name,p.name)==0)
                {



                    printf("\n Enter name:");
                    got(s.name);
                    printf("\nEnter the address:");
                    got(s.address);
                    printf("\nEnter father name:");
                    got(s.father_name);
                    printf("\nEnter mother name:");
                    got(s.mother_name);
                    printf("\nEnter phone no:");
                    scanf("%ld",&s.mble_no);
                    printf("\nEnter sex:");
                    got(s.sex);
                    printf("\nEnter e-mail:");
                    got(s.mail);
                    printf("\nEnter citizen no\n");
                    got(s.citision_no);
                    fseek(f,-sizeof(p),SEEK_CUR);
                    fwrite(&s,sizeof(p),1,f);
                    flag=1;
                    break;



                }
                fflush(stdin);


            }
            if(flag==1)
            {
                printf("\n your data id modified");

            }
            else
            {
                    printf(" \n data is not found");

            }
            fclose(f);
	}
	 printf("\n Enter any key");
	 getch();
    system("cls");
	menu();

}
void got(char *name)
{

   int i=0,j;
    char c,ch;
    do
    {
        c=getch();
                if(c!=8&&c!=13)
                {
                    *(name+i)=c;
                        putch(c);
                        i++;
                }
                if(c==8)
                {
                    if(i>0)
                    {
                        i--;
                    }
                   // printf("h");
                    system("cls");
                    for(j=0;j<i;j++)
                    {
                        ch=*(name+j);
                        putch(ch);

                    }

                }
    }while(c!=13);
      *(name+i)='\0';
}

Explanation

The primary features that make up the main menu of this Phonebook program include adding new records, listing them, altering and updating them, searching for stored contacts, and deleting phonebook data.

When adding a record to the Phonebook, personal information such as name, sex, father's name, phone number, citizenship number, email, and address is requested. Modifying, listing, searching for, and removing these records is then possible.

In this short project, we employed a variety of functions. These functions are simple to grasp since their names solely refer to the actions they perform.

One of the simplest mini projects built by the Code with C team is the Phonebook application. It is aimed mostly for novices who are just beginning to construct tiny projects in the C programming language. Personal diary management and contact management systems are two more initiatives that are extremely comparable.

Output