Thursday, September 15, 2011

“Contacts Manager” mini project in C with source code

Contacts Manager is a simple mini project code in C.This is similar to contact manager in Mobile phones.You can add contacts,remove contacts,edit contacts,search contacts and view all contacts.Graphics is not used just a console application suitable for learning purpose for beginner and can be used as a reference for college mini project.In this project you learning file handling ,how to write data,delete data and search data form file.I hope my post may help you and you can send email for further help.
Copy the source code below and compile it in Code::Blocks.


 
#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<process.h>
#include<stdlib.h>
#include<dos.h>
 
 
 
 
struct contact
{
long ph;
char name[20],add[20],email[30];
}list;
 
char query[20],name[20];
FILE *fp, *ft;
int i,n,ch,l,found;
 
int main()
{
 
 
 
 
main:
system("cls");    /* ************Main menu ***********************  */
printf("\n\t **** Welcome to a0 contact Manager ****");
printf("\n\n\n\t\t\tMAIN MENU\n\t\t=====================\n\t\t[1] Add a new   
Contact\n\t\t[2] List all Contacts\n\t\t[3] Search for contact\n\t\t[4] Edit  
a Contact\n\t\t[5] Delete a Contact\n\t\t[0] Exit\n\t\t=================\n\t\t");
printf("Enter the choice:");
scanf("%d",&ch);
 
switch(ch)
{
case 0:
printf("\n\n\t\tAre you sure u want to exit?");
break;
/* *********************add new contacts************  */
case 1:
 
system("cls");
fp=fopen("contact.dll","a");
for (;;)
{ fflush(stdin);
printf("To exit enter blank space in the name input\nName (Use identical):");
scanf("%[^\n]",&list.name);
if(stricmp(list.name,"")==0 || stricmp(list.name," ")==0)
break;
fflush(stdin);
printf("Phone:");
scanf("%ld",&list.ph);
fflush(stdin);
printf("address:");
scanf("%[^\n]",&list.add);
fflush(stdin);
printf("email address:");
gets(list.email);
printf("\n");
fwrite(&list,sizeof(list),1,fp);
}
fclose(fp);
break;
 
/* *********************list of contacts*************************  */
case 2:
system("cls");
printf("\n\t\t================================\n\t\t\tLIST OF CONTACTS\n\t\t==== 
============================\n\nName\t\tPhone No\t    Address\t\tE-mail ad.\n=== 
==============================================================\n\n");
 
for(i=97;i<=122;i=i+1)
{
 
fp=fopen("contact.dll","r");
fflush(stdin);
found=0;
while(fread(&list,sizeof(list),1,fp)==1)
{
if(list.name[0]==i || list.name[0]==i-32)
{
printf("\nName\t: %s\nPhone\t: %ld\nAddress\t: %s\nEmail\t: %s\n",list.name, 
list.ph,list.add,list.email);
found++;
}
}
if(found!=0)
{printf("=========================================================== [%c]- 
(%d)\n\n",i-32,found);
getch();}
fclose(fp);
 
}
 
break;
 
 
 
/* *******************search contacts**********************  */
case 3:
system("cls");
do
{
found=0;
printf("\n\n\t..::CONTACT SEARCH\n\t===========================\n\t..::Name of  
contact to search: ");
fflush(stdin);
scanf("%[^\n]",&query);
l=strlen(query);
fp=fopen("contact.dll","r");
 
system("cls");
printf("\n\n..::Search result for '%s' \n====================================== 
=============\n",query);
while(fread(&list,sizeof(list),1,fp)==1)
{
for(i=0;i<=l;i++)
name[i]=list.name[i];
name[l]='\0';
if(stricmp(name,query)==0)
{
printf("\n..::Name\t: %s\n..::Phone\t: %ld\n..::Address\t: %s\n..::Email\t:  
%s\n",list.name,list.ph,list.add,list.email);
found++;
if (found%4==0)
{
printf("..::Press any key to continue...");
getch();
}
}
}
 
if(found==0)
printf("\n..::No match found!");
else
printf("\n..::%d match(s) found!",found);
fclose(fp);
printf("\n ..::Try again?\n\n\t[1] Yes\t\t[0] No\n\t");
scanf("%d",&ch);
}while(ch==1);
break;
 
 
/* *********************edit contacts************************/
case 4:
system("cls");
fp=fopen("contact.dll","r");
ft=fopen("temp.dat","w");
fflush(stdin);
printf("..::Edit contact\n===============================\n\n\t..::Enter the  
name of contact to edit:");
scanf("%[^\n]",name);
while(fread(&list,sizeof(list),1,fp)==1)
{
if(stricmp(name,list.name)!=0)
fwrite(&list,sizeof(list),1,ft);
}
fflush(stdin);
printf("\n\n..::Editing '%s'\n\n",name);
printf("..::Name(Use identical):");
scanf("%[^\n]",&list.name);
fflush(stdin);
printf("..::Phone:");
scanf("%ld",&list.ph);
fflush(stdin);
printf("..::address:");
scanf("%[^\n]",&list.add);
fflush(stdin);
printf("..::email address:");
gets(list.email);
printf("\n");
fwrite(&list,sizeof(list),1,ft);
fclose(fp);
fclose(ft);
remove("contact.dll");
rename("temp.dat","contact.dll");
break;
 
 
/* ********************delete contacts**********************/
case 5:
system("cls");
fflush(stdin);
printf("\n\n\t..::DELETE A CONTACT\n\t==========================\n\t..::Enter  
the name of contact to delete:");
scanf("%[^\n]",&name);
fp=fopen("contact.dll","r");
ft=fopen("temp.dat","w");
while(fread(&list,sizeof(list),1,fp)!=0)
if (stricmp(name,list.name)!=0)
fwrite(&list,sizeof(list),1,ft);
fclose(fp);
fclose(ft);
remove("contact.dll");
rename("temp.dat","contact.dll");
break;
 
default:
printf("Invalid choice");
break;
}
 
 
printf("\n\n\n..::Enter the Choice:\n\n\t[1] Main Menu\t\t[0] Exit\n");
scanf("%d",&ch);
switch (ch)
{
case 1:
goto main;
 
 
case 0:
break;
 
default:
printf("Invalid choice");
break;
}
 
return 0;
}
 
 
 

3 comments:

  1. What about a contact management system that can work on any device ? . There are thousands of contact management applications coded in different languages such as vb dot net, java, php, jsp, asp etc. for variety of platforms such as desktop computer, android mobiles, windows phone, iOS etc. This application should stand out among all these apps in a way that it can be opened in any device. It should allow user to add new/modify/delete contacts.

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  2. This comment has been removed by the author.

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  3. To control code need others present. I worked with a website, which provides application development for mobile phones. I ordered the application for business management customer base. They use a different method, better and more secure.

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