Question

write a code on .C file

Problem Write a C program to implement a banking application system. The program design must use a main and the below functions only. The program should use the below three text files that contain a set of lines. Sample data of these files are provided with the assessment. Note that you cannot use the library string.h to manipulate string variables. For the file operations and manipulations, you can use only the following functions: fopen(), fclose(), fprintf() and fscanf(). Also, the program must check whether the file has been successfully opened and closed each time a file is opened and closed. Below represents the 3 text files listed as A, B, and C: Doe 345 A) O_Customerdata_05.txt: Each line contains the customer ID, PIN, first name, last name, phone number, and Balance separated by a tab character. Each line is terminated by a newline character. The file should be updated whenever a new customer joins the bank. Example: 2345 123 Joe 56787667 4500 3456 Li Mew 56783422 6000 Customer ID: is a positive integer. In the following example, customers' IDs are 2345 and 3456 PIN: is a 3-digit positive integer. First Name: is a string that can be up to 49 characters. Last Name: is a string that can be up to 49 characters. Phone Number: phone number must be 8-digit long. Balance: is the account balance (integer). In the example, customer with ID 2345 has balance of 4500 in his account B) O_Logs_05.txt: Each line contains customers' IDs, Login_Success and Login_Failure. Numbers are separated by a tab character and each line is terminated by a newline character. Example: 2345 2 3 3456 2 Login Success: is the number of successful logins attempts into the account. For example, for account 2345 the number for successful login attempts was 2. Login Failure is the number of failed Login attempts to the account. For example, for account 2345 the number for failed Login attempts was 3. C) O_Transaction_History_05.txt: Each line contains a customer's ID, Credit_Art and Debit_Amt separated by a tab character. Each line is terminated by a newline character. Example: 2345 150 0 2345 200 3456 450 0 2345 350 Programming Applications for Engineers CS 159 2 Page 0 0

Answer 1

Code:-

#include <stdio.h>

#include<stdlib.h>

#define row 28

const int col=3;

int cur_cd=0,cur_log=0,cur_ts=0;

int Login_PIN[row];

int Account_status[row][3];

char Name[row][100];

struct Logs

{

int cid,ls,lf;

}L[row];

struct Transaction

{

int cid,c_amnt,d_amnt;

}TH[row];

int f=1;

void input()

{

FILE *fin;

fin=fopen("O_Customerdata_04.txt","r");

if ( fin == NULL )

{

printf("No file named O_Customerdata_04\n") ;

f=0;

return;

}

int i=0;

char fn[50],ln[50];

while(fscanf(fin,"%d%d",&Account_status[i][0],&Login_PIN[i])!=EOF)

{

fscanf(fin,"%s%s",fn,ln);

int sfn=0,sln=0;

while(fn[sfn]!='\0')

{

sfn++;

}

while(ln[sln]!='\0')

{

sln++;

}

int k;

for(k=0;k<sfn;k++)

{

Name[i][k]=fn[k];

}

Name[i][k]=' ';

k++;

int j;

for(j=0;j<sln;j++,k++)

{

Name[i][k]=ln[j];

}

Name[i][k]='\0';

fscanf(fin,"%d%d",&Account_status[i][1],&Account_status[i][2]);

//printf("%d %s %d\n",Account_status[i][0],Name[i],Account_status[i][1]);

i++;

}

cur_cd=i;

fclose(fin);

fin=fopen("O_Logs_04.txt","r");

if ( fin == NULL )

{

printf("No file named O_Logs_04\n") ;

f=0;

return;

}

i=0;

while(fscanf(fin,"%d%d%d",&L[i].cid,&L[i].ls,&L[i].lf)!=EOF)

{

i++;

}

cur_log=i;

fclose(fin);

fin=fopen("O_Transaction_History_04.txt","r");

if ( fin == NULL )

{

printf("No file named O_Transaction_History_04\n") ;

f=0;

return;

}

i=0;

while(fscanf(fin,"%d%d%d",&TH[i].cid,&TH[i].c_amnt,&TH[i].d_amnt)!=EOF)

{

i++;

}

cur_ts=i;

fclose(fin);

return;

}

void O_NewAccount_04()

{

if(cur_cd>27)

{

printf("The File is Full cannot create a new account\n\n");

return;

}

int id,i;

printf("Enter a new Customer ID:");

scanf("%d",&id);

for(i=0;i<cur_cd;i++)

{

if(id==Account_status[i][0])

{

break;

}

}

if(i!=cur_cd)

{

printf("Customer ID Already Exisits.New Account is not created\n\n");

return;

}

while ((getchar()) != '\n');

char fn[50],ln[50];

printf("Enter First Name:");

scanf("%s",fn);

printf("Enter Last Name:");

scanf("%s",ln);

int phn_num,damnt;

printf("Enter Phone Number:");

scanf("%d",&phn_num);

printf("Enter Initial deposit amount:");

scanf("%d",&damnt);

if(damnt<530)

{

printf("Minimum balance must be 530.New Account is not created\n\n");

return;

}

i=cur_cd;

Account_status[cur_cd][0]=id;

int sfn=0,sln=0;

while(fn[sfn]!='\0')

{

sfn++;

}

while(ln[sln]!='\0')

{

sln++;

}

int k;

for(k=0;k<sfn;k++)

{

Name[i][k]=fn[k];

}

Name[i][k]=' ';

k++;

int j;

for(j=0;j<sln;j++,k++)

{

Name[i][k]=ln[j];

}

Name[i][k]='\0';

Account_status[cur_cd][1]=phn_num;

Account_status[cur_cd][2]=damnt;

printf("Enter a 3 digit Pin:");

scanf("%d",&Login_PIN[cur_cd]);

L[cur_log].cid=id;

L[cur_log].ls=L[cur_log].lf=0;

printf("Your Account has been created successfully\n\n");

cur_cd++;

cur_log++;

return;

}

void O_Search_04()

{

int id,pin;

printf("Enter Customer Id:");

scanf("%d",&id);

int i;

for(i=0;i<cur_cd;i++)

{

//printf("%d\n",Account_status[i][0]);

if(id==Account_status[i][0])

{

break;

}

}

if(i==cur_cd)

{

printf("Id not present\n\n");

return;

}

int j;

for(j=0;j<cur_log;j++)

{

if(L[j].cid==id)

{

break;

}

}

printf("Enter Customer PIN:");

scanf("%d",&pin);

if(Login_PIN[i]!=pin)

{

printf("Wrong PIN\n\n");

L[j].lf++;

return;

}

L[j].ls++;

printf("\tName\t:%s\n",Name[i]);

printf("\tPhone\t:%d\n",Account_status[i][1]);

printf("\tBalance\t:%d\n",Account_status[i][2]);

printf("\n");

return;

}

void O_Statement_04()

{

int id,pin;

printf("Enter Customer Id:");

scanf("%d",&id);

int i;

for(i=0;i<cur_cd;i++)

{

//printf("%d\n",Account_status[i][0]);

if(id==Account_status[i][0])

{

break;

}

}

if(i==cur_cd)

{

printf("Id not present\n\n");

return;

}

int j;

for(j=0;j<cur_log;j++)

{

if(L[j].cid==id)

{

break;

}

}

printf("Enter Customer PIN:");

scanf("%d",&pin);

if(Login_PIN[i]!=pin)

{

printf("Wrong PIN\n\n");

L[j].lf++;

return;

}

L[j].ls++;

printf("Customer Id\t\tCredit Amount\t\tDebit Amount\n");

printf("-----------\t\t-------------\t\t-------------\n");

for(int i=0;i<cur_ts;i++)

{

if(id==TH[i].cid)

{

printf("%d\t\t\t%d\t\t\t\t\t%d\n",TH[i].cid,TH[i].c_amnt,TH[i].d_amnt);

}

}

printf("\n");

}

void O_Transaction_04()

{

if(cur_ts>27)

{

printf("The File is Full cannot create a new transaction\n\n");

return;

}

int id,pin;

printf("Enter Customer Id:");

scanf("%d",&id);

int i;

for(i=0;i<cur_cd;i++)

{

//printf("%d\n",Account_status[i][0]);

if(id==Account_status[i][0])

{

break;

}

}

if(i==cur_cd)

{

printf("Id not present\n\n");

return;

}

int j;

for(j=0;j<cur_log;j++)

{

if(L[j].cid==id)

{

break;

}

}

printf("Enter Customer PIN:");

scanf("%d",&pin);

if(Login_PIN[i]!=pin)

{

printf("Wrong PIN\n\n");

L[j].lf++;

return;

}

L[j].ls++;

printf("Enter Your Option\n");

printf("\t1. Deposit\n");

printf("\t2. Withdrawl\n");

int ch,amnt;

scanf("%d",&ch);

if(ch==1)

{

printf("Enter amount to be deposited:");

scanf("%d",&amnt);

TH[cur_ts].cid=id;

TH[cur_ts].c_amnt=amnt;

TH[cur_ts].d_amnt=0;

Account_status[i][2]+=amnt;

printf("\tYour Account has been Credited for amount %d\n",amnt);

printf("\tCurrent Balance in Your account %d\n\n",Account_status[i][2]);

cur_ts++;

}

else

{

printf("Enter amount to be withdrawn:");

scanf("%d",&amnt);

if(Account_status[i][2]-amnt<530)

{

printf("Transaction Failed amount more than minimum balance\n\n");

L[j].ls--;

L[j].lf++;

return;

}

TH[cur_ts].cid=id;

TH[cur_ts].c_amnt=0;

TH[cur_ts].d_amnt=amnt;

Account_status[i][2]-=amnt;

printf("\tYour Account has been Debited for amount %d\n",amnt);

printf("\tCurrent Balance in Your account %d\n\n",Account_status[i][2]);

cur_ts++;

}

}

void output()

{

FILE *fout;

fout=fopen("O_Customerdata_04.txt","w");

int i;

for(int i=0;i<cur_cd;i++)

{

fprintf(fout,"%d %d %s %d %d\n",Account_status[i][0],Login_PIN[i],Name[i],Account_status[i][1],Account_status[i][2]);

}

fclose(fout);

fout=fopen("O_Logs_04.txt","w");

for(int i=0;i<cur_log;i++)

{

fprintf(fout,"%d %d %d\n",L[i].cid,L[i].ls,L[i].lf);

}

fclose(fout);

fout=fopen("O_Transaction_History_04.txt","w");

for(int i=0;i<cur_ts;i++)

{

fprintf(fout,"%d %d %d\n",TH[i].cid,TH[i].c_amnt,TH[i].d_amnt);

}

fclose(fout);

return;

}

int main(void)

{

input();

if(f==0)

{

return 0;

}

while(f)

{

printf("Please choose one of the following ---\n");

printf("A: Open New Account\n");

printf("B: Search for Account\n");

printf("C: View Account Statement\n");

printf("D: Perform Transaction\n");

printf("E: Exit\n");

char ch;

printf("Enter Your Option: ");

scanf("%c",&ch);

switch(ch)

{

case 'A':

O_NewAccount_04();

break;

case 'B':

O_Search_04();

break;

case 'C':

O_Statement_04();

break;

case 'D':

O_Transaction_04();

break;

case 'E':

f=0;

break;

}

while ((getchar()) != '\n');

}

output();

return 0;

}

Output:-

Please choose one of the following A: Open New Account B: Search for Account C: View Account Statement D: Perform Transaction E: Exit Enter Your Option: A Enter a new Customer ID:789 Enter First Name:Sandy Enter Last Name:Jhonson Enter Phone Number: 12345678 Enter Initial deposit amount: 700 Enter a 3 digit Pin:123 Your Account has been created successfully Please choose one of the following A: Open New Account B: Search for Account C: View Account Statement D: Perform Transaction E: Exit Enter Your Option: B Enter Customer Id:2345 Enter Customer PIN:123 Name : Joe Doe Phone :56787667 Balance : 4500

Please choose one of the following A: Open New Account B: Search for Account C: View Account Statement D: Perform Transaction E: Exit Enter Your Option: C Enter Customer Id:2345 Enter Customer PIN:123 Customer Id Credit Amount Debit Amount 150 0 2345 2345 2345 0 200 350 0 Please choose one of the following A: Open New Account B: Search for Account C: View Account Statement D: Perform Transaction E: Exit Enter Your Option: D Enter Customer Id: 789 Enter Customer PIN:123 Enter Your Option 1. Deposit 2. Withdrawl 1 Enter amount to be deposited:200 Your Account has been credited for amount 200 Current Balance in Your account 900

Please choose one of the following --- A: Open New Account B: Search for Account C: View Account Statement D: Perform Transaction E: Exit Enter Your Option: E ... Program finished with exit code 0 Press ENTER to exit console.

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