PhoneBook Management System using C


#include<stdio.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#define FILENAME "PHONEBOOK.PHN"

/* structure of PhoneBook datatype */

struct PhoneBook{

char name[100];
char address[200];
int phoneNo;
char email[100];

};

void mainMenu();                    /*display main menu*/
void addContact(FILE *fp);            /*add new contact*/
void readContacts(FILE *);            /*read contacts from file*/
void deleteContact(FILE *);            /*delete contacts from file*/
void modifyContact(FILE *);            /*modify contacts from file*/
PhoneBook basicDetails(char[]);     /*takes input for one contact object*/
void searchContact(FILE *);            /*search contact from file*/
int checkForMatch(char[],char[]);    /*helper method for searchContact()*/
void menuDesign(char[]);            /*display header */
void showMessage(char[]);             /*display message*/
void pressForMainMenu();             /* returns to main menu */
void fileOpen(FILE *);
void fileClose(FILE *);

main(){

system("cls");
mainMenu();

}

void mainMenu(){

printf("\n\n\n\n\n\t\tLOADING . PLEASE WAIT....");
FILE *fp;
fp=fopen(FILENAME,"rb+");
if(fp==NULL){

fp=fopen(FILENAME,"wb+");
if(fp==NULL){

printf("CANNOT OPEN THE FILE");

}

}

system("cls");
int choise;
char ch;
int result;
printf("\n\n");
menuDesign("PHONEBOOK MANAGMENT SYSTEM");
printf("\n\t\t1. ADD NEW CONTACT");
printf("\n\t\t2. VIEW ALL CONTACTS");
printf("\n\t\t3. SEARCH CONTACTS");
printf("\n\t\t4. MODIFY CONTACTS");
printf("\n\t\t5. DELETE CONTACT");
printf("\n\t\t6. EXIT");

printf("\n\n\n\t\t ENTER YOUR CHOISE : ");
fflush(stdin);
ch=getche();

system("cls");

switch(ch){


case '1' :

addContact(fp);
break;

case '2':

readContacts(fp);
break;

case '3':
searchContact(fp);
break;

case '4':
modifyContact(fp);
break;

case '5':

deleteContact(fp);
break;

case '6':

exit(0);
break;

default:
system("cls");
showMessage("ERROR !! PRESS 1-6 ONLY");
pressForMainMenu();
getch();
}



}

void searchContact(FILE *fp){
typedef PhoneBook CONTACT;
CONTACT ph;
int result;
int count=0;
char item[50];
printf("\n\t\tEnter Some text to be Searched : ");
scanf("%s",&item);
while(fread(&ph,sizeof(ph),1,fp)==1){

result=checkForMatch(ph.name,item);
if(result==1){
count++;
printf("\n \t\t Name : %s \n\t\t Address : %s \n\t\t E-Mail :%s\n\t\t Phone No %d \n\n",ph.name,ph.address,ph.email,ph.phoneNo);
}

}
fclose(fp);
if(count==0)
printf("\n\t\tNothing found for Name : %s",item);
else
printf("\n\t\tTotal %d no of Contact(s) found for  : %s",count,item);

pressForMainMenu();
}

int checkForMatch(char a[],char b[])
{
int i,k;
char *p,temp[strlen(b)];
if(strlen(a)>=strlen(b)){
for(i=0;i<=(strlen(a)-strlen(b));i++)
{
p=&a[i];

k=0;

while(k!=strlen(b))
{
temp[k]=*(p+k);
k++;

}

temp[k]='\0';
//printf("\nOriginal : %s ~~~~~ Temp : %s\n",b,temp);
if(strcmp(strupr(temp),strupr(b))==0)
{
return 1;
}

}
}

return 0;
}


PhoneBook basicDetails(char level[200]){

PhoneBook ph;
menuDesign(level);
printf("\n\t\tEnter Name : ");
scanf("%s",&ph.name);

printf("\n\t\tEnter Address : ");
scanf("%s",&ph.address);


printf("\n\t\tEnter E-Mail : ");
scanf("%s",&ph.email);


printf("\n\t\tEnter phoneNo : ");
scanf("%d",&ph.phoneNo);

return ph;
}

void addContact(FILE *fp){

char another='Y';
PhoneBook ph;
while((another=='Y')||(another=='y')){
system("cls");
ph=basicDetails("ADD NEW CONTACT");
fseek(fp,0,SEEK_END);
fwrite(&ph,sizeof(ph),1,fp);
printf("\n\n\t\t-------------------------------------------------");
printf("\n\t\tAdded Successfully");
printf("\n\n\t\t-------------------------------------------------");
printf("\n\n\t\tWant to add Another Contact ( Y / Any Key ) : ");
fflush(stdin);
another=getche();

}


if(another!='Y'||(another!='y')){
fclose(fp);
system("cls");
mainMenu();
}

}

void readContacts(FILE *fp){

int count=0;
char keyPress;
rewind(fp);
PhoneBook ph;
menuDesign("ALL CONTACTS");
while(fread(&ph,sizeof(ph),1,fp)==1){
count++;
printf("\n \t\t Name : %s \n\t\t Address : %s \n\t\t E-Mail :%s\n\t\t Phone No : %d \n\n",ph.name,ph.address,ph.email,ph.phoneNo);
}
if(count==0){
showMessage("Nothing To Display ..... ");
}
fclose(fp);
pressForMainMenu();

}

void deleteContact(FILE *fp){

system("cls");
menuDesign("DELETE CONTACT");
PhoneBook ph;
FILE *temp;
int count=0;
char name[50];
temp=fopen("TEMP.DAT","wb+");
printf("\n\t\tEnter Contant Name to Delete : ");
scanf("%s",&name);
rewind(fp);
while(fread(&ph,sizeof(ph),1,fp)==1){
if ( strcmp ( ph.name, name ) != 0 ){

fwrite(&ph,sizeof(ph),1,temp);
}else{
count++;
}
}
fclose(fp);
fclose(temp);
remove ( FILENAME ) ;
rename ( "TEMP.DAT", FILENAME ) ;
fp = fopen ( FILENAME, "rb+" ) ;
printf("\n\n\t\t-------------------------------------------------");
if(count!=0)
printf("\n\t\tDeleted Successfully");
else
printf("\n\t\tNo entry found with Name : %s",name);
printf("\n\n\t\t-------------------------------------------------");
fclose(fp);
pressForMainMenu();

}


void modifyContact(FILE *fp){

system("cls");
menuDesign("MODIFY CONTACT DETAILS");
rewind(fp);
int count=0;
PhoneBook ph;
char name[50];
printf("\n\t\tEnter Name to be Modified : ");
scanf("%s",&name);

while(fread(&ph,sizeof(ph),1,fp)==1){
if(strcmp(ph.name,name)==0){
count++;
ph=basicDetails("MODIFY CONTACT ");
fseek(fp,-sizeof(ph),SEEK_CUR) ;
fwrite(&ph,sizeof(ph),1,fp);
break;

}
}
printf("\n\n\t\t-------------------------------------------------");
if(count!=0)
printf("\n\t\tModified Successfully");
else
printf("\n\t\tNo entry found with Name : %s",name);
printf("\n\n\t\t-------------------------------------------------");
fclose(fp);
pressForMainMenu();
}

void menuDesign(char topic[]){
char *pattren;
//pattren=printPattren('=',200);
printf("\n\t\t=============================");
printf("\n\t\t%s",topic);
printf("\n\t\t=============================\n\n");
}

void showMessage(char message[]){


printf("\n\t\t----------------------------------------------");
printf("\n\t\t%s",message);
printf("\n\t\t----------------------------------------------");

}

void pressForMainMenu(){
char keyPress;
printf("\n\n\t\tPress Any Key For Main Menu ... ");
keyPress=getche();
if(keyPress!=' ')
system("cls");
mainMenu();
}


&nbsp;

Screenshorts

PhoneBook

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