#include #include #include #include #include // toupper() void login(); void menu(); void addClient(void); int searchClient(); void listClients(); void deleteClient(); int getRegInfo(); int fees(char []); int find(int locate); //a record struct Record { int regNum; int id; // int slots; char name[100]; int hr, min; float amtPaid; int date,month,year; }temp; int r=0; const int maxReg= 250; //array of struct struct Record reg[250]; int main() { login(); menu(); system("pause"); return 0; } // this was unused, so I read the records from file here void login() { FILE* f = fopen("registration.txt", "r"); if(!f) return; for (; r < maxReg && !feof(f); r++) fscanf(f,"%d %s %d %d:%d %d/%d/%d %f\n", ®[r].regNum, reg[r].name, ®[r].id, ®[r].hr, ®[r].min, ®[r].date, ®[r].month, ®[r].year,®[r].amtPaid); fclose(f); } void menu() { int choice; do { system("cls"); printf("\n\t\xdb\xdb\xdb\xdb\xdb\xdb\xdb VEHICLE REGISTRATION \xdb\xdb\xdb\xdb\xdb\xdb\xdb\n"); printf("\n\tA: Add Clients\n"); printf("\n\tD: Delete Client\n"); printf("\n\tS: Search Client\n"); printf("\n\tL: List Clients\n"); printf("\n\tX: Exit\n"); printf("\n\t\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb\xdb"); printf(" \n\n Enter Your Choice Here:"); // scanf("%d", &choice); choice = toupper(getch()); switch(choice) { case 'A': system("cls"); printf("\n\t\xdb\xdb Add Client: \xdb\xdb \n"); addClient(); system("pause"); system("cls"); break; case 'D': system("cls"); printf("\n\t\xdb\xdb Delete Client: \xdb\xdb \n"); deleteClient(); system("pause"); system("cls"); break; case 'S': system("cls"); printf("\n\t\xdb\xdb Search Clients: \xdb\xdb \n"); searchClient(); system("pause"); system("cls"); break; case 'L': system("cls"); printf("\n\t\xdb\xdb List Clients: \xdb\xdb \n"); listClients(); system("pause"); system("cls"); break; case 'X': case 27: // Escape system("cls"); printf("\n\t\xdb\xdb GOODBYE \xdb\xdb \n"); //system("pause"); system("exit"); break; default: // system("cls"); printf("\n\t\xdb\xdb Invalid selection, try again\xdb\xdb \n"); system("pause"); break; } } while(choice != 'X' && choice != 27); } void addClient(void) { if(r < maxReg) { if(getRegInfo()) r++; } else { printf("\nRegistration Lot Full"); system("pause"); // menu(); // it return to menu anyway } } int getRegInfo() { // int i; // UE is longest that needs stored here, so 3 is minimum length to have space for terminating '\0'. But don't be cheap, if the user enters more than that, you'll be in trouble, so just give it space! char type[100]; FILE *fptr; FILE *Pfp; FILE *UEfp; int ret = 1; // return value printf("Enter Registration Number: "); scanf("%d",®[r].regNum); printf("Enter Name: "); fflush(stdin); // ? //gets(reg[r].name); // gets() allows spaces, which will cause problems when read from file with fscanf() later // so better read with scanf(), even though it doesn't allow spaces scanf("%s", reg[r].name); // NOW there is a need for fflush(), if user entered a name with spaces, just discard all but the first word: fflush(stdin); printf("Enter Identification Number [D/L or Passport or National ID]: "); scanf("%d",®[r].id); printf("Enter Registration Time (12 hr format hr:min) : "); scanf("%d:%d", ®[r].hr, ®[r].min); //date(); // I'll move these into fees(): // printf("Choose type: Ultra Exclusive (UE), Premium (P), or 250 Regular (R)."); // scanf("%s", type); if(!fees(type)) return 0; fptr=fopen("registration.txt","a"); Pfp = fopen("premium.txt","a"); UEfp = fopen("ultra.txt", "a"); if(fptr==NULL) { printf("registration.txt is not opened.\n"); ret = 0; // we will return 0 } else { fprintf(fptr,"%d %s %d %d:%d %d/%d/%d %.2f\n", reg[r].regNum, reg[r].name, reg[r].id, reg[r].hr, reg[r].min, reg[r].date, reg[r].month,reg[r].year ,reg[r].amtPaid); if(strcasecmp(type, "P") == 0 && Pfp == NULL || strcasecmp(type, "UE") == 0 && UEfp == NULL) { printf("error occured while opening premium.txt/ultra.txt\n"); ret = 0; } else { if(strcasecmp(type,"P")==0) { fprintf(Pfp,"%d:%d %d/%d/%d %.2f\n", reg[r].hr, reg[r].min, reg[r].date, reg[r].month,reg[r].year, reg[r].amtPaid); printf("Premium information added to file\n"); ret = 1; // all ok } else if (strcasecmp(type,"UE")==0) { fprintf(UEfp,"%d:%d %d/%d/%d %.2f\n", reg[r].hr, reg[r].min, reg[r].date, reg[r].month,reg[r].year, reg[r].amtPaid); printf("Ultra Exclusive information added to file\n"); ret = 1; // all ok } // else // { // printf("information was not added to file\n"); // it WAS added // ret = 0; // I returned 0 because I thought it was a legit error // } } } fclose(fptr); fclose(Pfp); fclose(UEfp); return ret; } int fees(char type[]) { float change; int choice; char method[100]; // again, give it space so that it won't crash if the user enters more than it can hold // while(again) while(1) // I'll exit with return { // btw, it had no option for Regular, if you entered R, it said invalid type; I added a simple option printf("Choose type: Ultra Exclusive (UE), Premium (P), or 250 Regular (R): "); scanf("%s", type); // there's a lot of repeating code here that could be reduced :| if (strcasecmp(type,"P")==0) { printf("You are a premium user\n"); printf("NOTE: Monthly Fee is $2000 JM Dollars\n"); printf("Choose paying method: (Cash or Card): "); scanf("%s", method); while(1) { if(strcasecmp(method,"cash")==0) { while(1) { printf("Enter amount paid(flat yearly fee): "); scanf("%f",®[r].amtPaid); if(reg[r].amtPaid < 2000) { change = 2000 - reg[r].amtPaid; printf("Insufficent funds\n"); printf("Choose 1 to enter amount again or 2 to exit: "); do choice = getch(); while(choice != '1' && choice != '2'); if(choice == '1') continue; // read type again else return 0; } else if(reg[r].amtPaid > 2000) { change = reg[r].amtPaid - 2000; printf("Your change from %.2f is %.2f",reg[r].amtPaid, change); return 1; } else { printf("You paid $%.2f dollars\n", reg[r].amtPaid); // printf("Premium client to be added...\n"); return 1; } } } else if(strcasecmp(method,"card")==0) { printf("Enter amount paid(flat yearly fee): "); scanf("%f",®[r].amtPaid); printf("$%.2f was taken from your account\n", reg[r].amtPaid); // printf("Premium client to be added...\n"); // it's not added yet until it's in the file! return 1; // allow registration to continue } else { printf("Invalid choice of payment\n"); printf("\nChoose 1 to enter again or 2 to exit: "); do choice = getch(); while(choice != '1' && choice != '2'); if(choice == '1') continue; // read type again else return 0; } } } else if(strcasecmp(type,"UE")==0) { // here we go again. I'd do it differently, but I'm to lazy to modify the code while(1) { printf("You are an Ultra Exclusive user\n"); printf("NOTE: flat yearly fee is $100,000.00 JM Dollars\n"); printf("Choose paying method: (Cash or Card): "); scanf("%s", method); if(strcasecmp(method,"cash")==0) { printf("Enter amount paid(flat yearly fee): "); scanf("%f",®[r].amtPaid); if(reg[r].amtPaid < 100000) { change = 100000 - reg[r].amtPaid; printf("Insufficent funds"); printf("\nChoose 1 to enter amount again or 2 to exit: "); do choice = getch(); while(choice != '1' && choice != '2'); if(choice == '1') continue; // read type again else return 0; } else if(reg[r].amtPaid > 100000) { change = reg[r].amtPaid - 100000; printf("Your change from %.2f is %.2f",reg[r].amtPaid, change); return 1; // all good } else { printf("You paid $%.2f dollars\n", reg[r].amtPaid); printf("Ultra Exclusive Client to be added...\n"); return 1; } } else if(strcasecmp(method,"card")==0) { printf("Enter amount paid(flat yearly fee): "); scanf("%f",®[r].amtPaid); printf("$%.2f was taken from your account\n", reg[r].amtPaid); printf("Ultra Exclusive Client to be added...\n"); return 1; } } } // there was no option for Regular, so I added this short branch: else if(strcasecmp(type,"R")==0) { reg[r].amtPaid = 0; return 1; } else { printf("Invalid type\n"); printf("Choose 1 to enter type of parking again or 2 to exit:\n"); do choice = getch(); while(choice != '1' && choice != '2'); if(choice == '1') continue; // read type again else return 0; } } // return 1; } int find(int locate) { int i=0; int found=0; while(found==0 && i < r) //search records { if(reg[i].regNum == locate) found=1; else i++; } if(found==1) return i; else return -1; } void deleteClient() { // deleting a client record // int num; FILE *newrec; // old=fopen("registration.txt","r"); newrec=fopen("new.txt","w"); int i1,i=0; int regnum; printf("enter clients's registration number : "); scanf("%d", ®num); i1 = find(regnum); printf("\n"); if(i1==-1) printf("This person is not registered here.\n"); else { for(i=0; i < r; i++) { if(regnum == reg[i].regNum) { printf("Client with registration number %d has been successfully deleted.\n", regnum); //rewind(old); } else { fprintf(newrec,"%d %s %d %d:%d %d/%d/%d %.2f\n", reg[i].regNum, reg[i].name, reg[i].id, reg[i].hr, reg[i].min, reg[i].date, reg[i].month,reg[i].year ,reg[i].amtPaid); // printf("Client with registration number %d has been successfully deleted \n", regnum); //rewind(old); } } } // fclose(old); fclose(newrec); remove("registration.txt"); rename("new.txt","registration.txt"); // so far, it removed it from the file, but not from the records in memory. You can check that by Listing clients with the next line commented: login(); // this simply reads all records from file again; not orthodox, only a quick fix } int searchClient() { int num; // int again; int i; FILE *fptr; // a file search personal information fptr = fopen ("registration.txt","r"); printf ("Enter Registration Number of Client You Want to Search for:"); scanf ("%d", &num); // selection statement used to check if file exists if (fptr == NULL) { printf("File inaccessible"); return -1; } else { //printf("Registration Number \t Client Name \t Registration ID \t Registration Time \t Registration Date \t Amount Paid \n"); for (i=0; !feof(fptr); i++) { fscanf(fptr,"%d %s %d %d:%d %d/%d/%d %f\n", ®[i].regNum, reg[i].name, ®[i].id, ®[i].hr, ®[i].min, ®[i].date, ®[i].month, ®[i].year,®[i].amtPaid); if(num == reg[i].regNum) { system("CLS"); printf(" * * RECORD FOUND * * \n"); printf("the client registration number is : %d\n",reg[i].regNum); printf("the client full name is : %s\n",reg[i].name); printf("the client identification number is : %d\n", reg[i].id); printf("the client registration time is : %d:%d\n", reg[i].hr, reg[i].min); printf("the client registration date is : %d/%d/%d\n", reg[i].date, reg[i].month,reg[i].year); printf("the amount client paid is : %.2f\n", reg[i].amtPaid); return i; } } //endfor } fclose(fptr); printf("\n= = Record Not Found\n"); return -1; } void listClients() { int i; for(i = 0; i < r; ++i) printf("%d %s %d %d:%d %d/%d/%d %.2f\n", reg[i].regNum, reg[i].name, reg[i].id, reg[i].hr, reg[i].min, reg[i].date, reg[i].month,reg[i].year ,reg[i].amtPaid); }

mya&#39;s fscanf and fprintf

mya's fscanf and fprintf