C Program to Contacts Management Project with Full Source Code For Beginners

Source Code:

Contacts Management using C Program.

main.c

#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] Edita 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:"); fgets(list.email,30,stdin); 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:"); fgets(list.email,30,stdin); 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; }
Code language: PHP (php)

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