responsi uas.cpp

#include <iostream>

using namespace std;
class Nasabah{
    private : int saldo;

    public:
    Nasabah(){
        saldo = 1500000;
    }
    void setSaldo(int s){
        saldo = saldo;
    }
    int getSaldo(){
        return saldo;
    }
    void tambahSaldo(int s){
        saldo += s;
    }
    void ambilUang(int s){
        saldo -= s;
    }
    void transferUang(int s, int r){
        saldo -=s;
        cout << s << " berhasil ditransfer ke: " << r << endl;
    }

};
Nasabah bowo;
bool login();
void mainMenu();
void cekSaldo();
void setorUang();
void ambilUang();
void transferUang();
int logout();

int main()
{
    initiate:
    if(login()){
        mainMenu();
    }else{
        system("clear");
        cout << "something wrong" << endl;
        goto initiate;
    }
}


bool login(){
    initiateLogin:
    string username, password;
    bool isLogin;
    cout << "========LOGIN=========" << endl;
    cout << "username: "; cin >> username;
    cout << "password: "; cin >> password;
    cout << "======================" << endl;
    (username == "bowo" && password == "uunc") ? isLogin = true: isLogin = false;
    bowo.setSaldo(1500000);
    return isLogin;
}

void mainMenu(){
    system("clear");
    int choice;
    cout << "======================" << endl;
    cout << "1.Cek saldo" << endl;
    cout << "2.Setor uang" << endl;
    cout << "3.Ambil uang" << endl;
    cout << "4.Transfer uang" << endl;
    cout << "5.Logout" << endl;
    cout << "======================" << endl;
    cout << "pilihan: "; cin >> choice;
    switch(choice){
        case 1:
            cekSaldo();
            break;
        case 2:
            setorUang();
            break;
        case 3:
            ambilUang();
            break;
        case 4:
            transferUang();
            break;
        case 5:
           logout();
            break;
        default:
        mainMenu();
        break;
    }
}

void cekSaldo(){
    system("clear");
    char b;
    cout << "======================" << endl;
    cout << "Saldo anda Rp." << bowo.getSaldo() << endl;
    cout << "\nTekan B untuk kembali" << endl;
    cin >> b;
    if(b == 'b' || b == 'B'){
        mainMenu();
    }
}

void setorUang(){
    int uang;
    char b, validation;
    system("clear");
    cout << "======================" << endl;
    cout << "Jumlah uang yang disetorkan:" << endl;
    cin >> uang;
    cout << "[y] yes [c] cancel" << endl;
    cin >> validation;
    if(validation == 'y' || validation == 'Y'){
        bowo.tambahSaldo(uang);
    }else if(validation == 'c' || validation == 'C'){
        mainMenu;
    }

    cout << "\nTekan B untuk kembali" << endl;
    cin >> b;
    if(b == 'b' || b == 'B'){
        mainMenu();
    }
}

void ambilUang(){
    int uang;
    char b, validation;
    system("clear");
    cout << "======================" << endl;
    cout << "Jumlah uang yang diambil:" << endl;
    cin >> uang;
    cout << "[y] yes [c] cancel" << endl;
    cin >> validation;
    if(validation == 'y' || validation == 'Y'){
        bowo.ambilUang(uang);
    }else if(validation == 'c' || validation == 'C'){
        mainMenu();
    }

    cout << "\nTekan B untuk kembali" << endl;
    cin >> b;
    if(b == 'b' || b == 'B'){
        mainMenu();
    }
}
void transferUang(){
    int uang, noRekening;
    char b, validation;
    system("clear");
    cout << "======================" << endl;
    cout << "Nomor rekening tujuan:" << endl;
    cin >> noRekening;
    cout << "Jumlah uang yang ditransfer:" << endl;
    cin >> uang;
    cout << "[y] yes [c] cancel" << endl;
    cin >> validation;
    if(validation == 'y' || validation == 'Y'){
        bowo.transferUang(uang, noRekening);
    }else if(validation == 'c' || validation == 'C'){
        mainMenu();
    }
    cout << "\nTekan B untuk kembali" << endl;
    cin >> b;
    if(b == 'b' || b == 'B'){
        mainMenu();
    }
}

int logout(){
    system("clear");
    return 0;
}

Nice!

thanks mas