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Merge pull request #9 from indrasuthar07/bank-system
feat: Implemented Bank Management System with core banking operations
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‎.vscode/c_cpp_properties.json‎

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{
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"configurations": [
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{
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"name": "Win32",
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"includePath": [
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"${workspaceFolder}/**"
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],
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"defines": [
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"_DEBUG",
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"UNICODE",
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"_UNICODE"
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],
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"compilerPath": "C:\\MinGW\\bin\\gcc.exe",
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"cStandard": "c11",
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"cppStandard": "gnu++14",
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"intelliSenseMode": "windows-gcc-x86"
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}
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],
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"version": 4
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}

‎.vscode/settings.json‎

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{
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"C_Cpp.errorSquiggles": "disabled"
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}

‎Src/Bank_Managment_System/a.exe‎

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‎Src/Bank_Managment_System/bankdata.txt‎

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460175970 Ram Dashrath 223223001111 9812345670 ram@gmail.com 5000
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588668694 Shyam Mohan 223223002222 9823456789 shyam@gmail.com 3400

‎Src/Bank_Managment_System/banksystem.cpp‎

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#include<bits/stdc++.h>
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using namespace std;
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//Bank class
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class Bank{
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int accNo;
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char name[25];
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char father[25];
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char Aadhar[25];
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char mobile[25];
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char email[25];
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float amount;
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int newAmount;
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fstream file, file1;
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public:
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int search;
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void createAccount(void);
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void depositAmount(void);
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void withdrawAmount(void);
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void checkInfo(void);
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bool isValidEmail(const string &email);
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bool isDuplicate(const string &Aadhar, const string &email, const string &phone);
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};
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//check email valid ya invalid
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bool Bank::isValidEmail(const string &email) {
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return (email.find('@') != string::npos && email.find('.') != string::npos && email.find(' ') == string::npos);
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}
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//check duplicate user
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bool Bank::isDuplicate(const string &cnicVal, const string &emailVal, const string &phoneVal) {
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fstream f;
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f.open("bankdata.txt", ios::in);
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if (!f)
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return false;
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int acc;
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char n[25], fn[25], c[25], p[25], e[25];
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float amt;
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while(f>>acc>>n>>fn>>c>>p>>e>>amt){
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if(strcmp(c, cnicVal.c_str()) == 0 || strcmp(e, emailVal.c_str()) == 0 || strcmp(p, phoneVal.c_str()) == 0) {
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f.close();
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return true;
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}
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}
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f.close();
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return false;
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}
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//create Account
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void Bank::createAccount(){
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srand(time(0));
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accNo = rand()*rand() + rand()*rand();
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cout << "Enter Your name -: ";
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cin >> name;
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cout << "Enter Your Father name -: ";
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cin >> father;
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cout << "Enter Your Aadhar no. -: ";
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cin >> Aadhar;
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cout << "Enter Your phone no. -: ";
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cin >> mobile;
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cout << "Enter Your email -: ";
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cin >> email;
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// Email Validation
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if(!isValidEmail(email)){
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cout << "\n Invalid email format! Use a valid email (e.g., abc@gmail.com)\n";
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return;
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}
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// Duplicate Check
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if(isDuplicate(Aadhar, email, mobile)){
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cout << "\n Account with same Aadhar, Email or Phone already exists!\n";
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return;
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}
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cout << "Enter Your amount to deposit -: ";
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cin>>amount;
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cout << endl
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<< accNo << " This is your account number...\n";
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cout << "Please save it.\n\n";
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file.open("bankdata.txt", ios::out | ios::app);
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file << accNo << "\t" << name << "\t" << father << "\t" << Aadhar << "\t" << mobile << "\t" << email << "\t" << amount << endl;
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file.close();
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cout << "✅ Account created successfully!\n";
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}
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//deposit
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void Bank::depositAmount() {
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cout << "Enter amount to deposit -: ";
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cin >> newAmount;
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file.open("bankdata.txt", ios::in);
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file1.open("bankdata1.txt", ios::out | ios::app);
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file >> accNo >> name >> father >> Aadhar >> mobile >> email >> amount;
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bool found = false;
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while(!file.eof()){
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if(accNo == search){
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found = true;
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cout << "\nCurrent amount -: " << amount;
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amount = amount + newAmount;
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cout << "\nUpdated amount -: " << amount << endl;
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}
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file1 << accNo << "\t" << name << "\t" << father << "\t" << Aadhar << "\t" << mobile << "\t" << email << "\t" << amount << endl;
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file >> accNo >> name >> father >> Aadhar >> mobile >> email >> amount;
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}
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if (!found)
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cout << "\n Account not found!\n";
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file.close();
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file1.close();
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remove("bankdata.txt");
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rename("bankdata1.txt", "bankdata.txt");
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}
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//withdraw
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void Bank::withdrawAmount() {
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cout << "Enter amount to withdraw -: ";
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cin >> newAmount;
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file.open("bankdata.txt", ios::in);
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file1.open("bankdata1.txt", ios::out | ios::app);
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file >> accNo >> name >> father >> Aadhar >> mobile >> email >> amount;
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bool found = false;
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while(!file.eof()){
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if(accNo == search){
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found = true;
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cout << "\nCurrent amount -: " << amount;
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if(newAmount > amount) {
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cout << "\n Insufficient balance!\n";
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}else {
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amount = amount - newAmount;
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cout << "\nUpdated amount -: " << amount << endl;
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}
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}
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file1 << accNo << "\t" << name << "\t" << father << "\t" << Aadhar << "\t" << mobile << "\t" << email << "\t" << amount << endl;
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file >> accNo >> name >> father >> Aadhar >> mobile >> email >> amount;
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}
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if (!found)
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cout << "\n Account not found!\n";
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file.close();
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file1.close();
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remove("bankdata.txt");
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rename("bankdata1.txt", "bankdata.txt");
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}
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//check info
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void Bank::checkInfo() {
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fstream file;
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file.open("bankdata.txt", ios::in);
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if (!file) {
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cout << " File opening error!";
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return;
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}
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file >> accNo >> name >> father >> Aadhar >> mobile >> email >> amount;
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bool found = false;
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while (!file.eof()) {
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if (accNo == search) {
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found = true;
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cout << "\n_________________________________________\n";
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cout << "\t# Account Number - " << accNo << endl;
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cout << "\t# User Name - " << name << endl;
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cout << "\t# Father Name - " << father << endl;
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cout << "\t# Aadhar number - " << Aadhar << endl;
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cout << "\t# Phone Number - " << mobile << endl;
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cout << "\t# Email - " << email << endl;
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cout << "\t# Current amount - " << amount << endl;
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cout << "___________________________________________\n\n";
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}
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file >> accNo >> name >> father >> Aadhar >> mobile >> email >> amount;
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}
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if (!found)
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cout << "\n Account not found!\n";
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file.close();
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}
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//main function
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int main() {
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Bank obj;
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char choice;
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cout << "\n\n\n\t\tWelcome! choose your Option :";
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cout << "\n\t\t1. press 1 to Login Account ";
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cout << "\n\t\t2. press 2 to Create Account";
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cout << "\n\t\t3. press 0 to Exit ";
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cout << "\n\t\t >Enter choice... :\t";
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cin >> choice;
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//choice
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switch (choice) {
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case '1':
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cout << "Enter your account no -: ";
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cin >> obj.search;
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while (1) {
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cout << "\n\n\n\t\tWelcome! choose your Option :";
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cout << "\n\t\t1. press 1 to Deposit Amount ";
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cout << "\n\t\t2. press 2 to Withdraw Amount";
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cout << "\n\t\t3. press 3 to Check Info";
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cout << "\n\t\t4. press 0 to Exit Menu";
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cout << "\n\t\t>Enter Choice... :\t";
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cin >> choice;
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switch (choice) {
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case '1':
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obj.depositAmount();
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break;
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case '2':
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obj.withdrawAmount();
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break;
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case '3':
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obj.checkInfo();
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break;
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case '0':
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return 0;
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default:
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cout << "Invalid Choice...!";
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break;
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}
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system("pause");
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system("cls");
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}
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break;
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case '2':
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obj.createAccount();
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break;
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case '0':
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cout << "Exiting... Thank you!\n";
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break;
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default:
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cout << "\n Invalid choice...! ";
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break;
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}
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return 0;
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}

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