Display Screen for Sequential File
Client data were been enter into the file system
//Hold ctrl + z to end file
//The result of client information
//coding for the sequential file system
#include <iostream>
#include <iomanip>
#include <string>
#include <cstdlib>
#include <conio.h>
#include <fstream> // file stream header
using namespace std;
//Function for outputting the contents saved in a file
void outputFile(int account, const string name, double balance){
cout << left << setw(10) << account << setw(13) << name
<< setw(7) << setprecision(2) << right << balance << endl;
}
//Function to add files sequentially
void addFileContent(){
//ofstream constructor opens file
ofstream outClientFile("client.txt", ios::app);
//exit function if unable to create file
if(!outClientFile){
cerr << "File Not Found!" << endl;
exit (1);
}
cout << "Enter the Account Number, Name and Balance " << endl
<< "Enter end-of-file to exit\n";
int account;
string name;
double balance;
//read account, name, and balance from cin, then store in file
//terminates when user enters end-of-file
while(cin >> account >> name >> balance){
// << stream insertion operator
outClientFile << account << " " << name << " " << balance << endl;
cout << "?";
}
}
//This function reads the content of the file
void readFileContent(){
//ifstream constructor
ifstream inClientFile("client.txt", ios::in);
//exit function if file could not be opened
if(!inClientFile){
cerr << "File Not Found!" << endl;
exit (1);
}
int account;
string name;
double balance;
cout << left << setw(10) << "Account" << setw(13) << "Name"
<< "Balance" << endl << fixed << showpoint;
//Loop until Failbit or badbit is not set (while (true))
//Read and display each record in the file
while (inClientFile >> account >> name >> balance){
outputFile(account, name, balance);
}
}
//function to search for a record in a sequential file
void searchFile(int accountNum){
//ifstream constructor
ifstream inClientFile("client.txt", ios::in);
//exit function if file could not be opened
if(!inClientFile){
cerr << "File Not Found!" << endl;
exit (1);
}
int account;
string name;
double balance;
bool found = false;
while(!inClientFile.eof()){
//Checks if the supplied accountNum exists
if(accountNum == account){
outputFile(account, name, balance);
found = true;
break;
}
//Reads the next record
inClientFile >> account >> name >> balance;
}
if(!found){
cout << "\n\nAccount number --> " << accountNum << " was not found in file " << endl;
}
inClientFile.clear(); //reset EOF for the next input
inClientFile.seekg(0); //reposition to beginning of file
}
int main(){
int accountNum;
addFileContent();
cout << endl;
cout << "Summary of File Information" << endl;
readFileContent();
cout << "\n\nSearching the File" << endl;
cout << "Enter Account Number : " << endl;
cin >> accountNum;
searchFile(accountNum);
system("pause");
return 0;
}
J.W. PRODUCTION