ATM Machine Simulation Gaming Project in C++

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3 months ago

#include <iostream>
#include <iomanip>  // For std::setw and std::setprecision

using namespace std;

// Function prototypes
void displayMenu();
void checkBalance(double balance);
void deposit(double &balance);
void withdraw(double &balance);

int main() {
    double balance = 0.0;  // Initial balance
    int choice;

    do {
        displayMenu();
        cin >> choice;

        switch (choice) {
            case 1:
                checkBalance(balance);
                break;
            case 2:
                deposit(balance);
                break;
            case 3:
                withdraw(balance);
                break;
            case 4:
                cout << "Exiting the ATM. Have a great day!" << endl;
                break;
            default:
                cout << "Invalid choice. Please select a valid option." << endl;
                break;
        }
    } while (choice != 4);

    return 0;
}

// Function to display the ATM menu
void displayMenu() {
    cout << "\nATM Menu" << endl;
    cout << "1. Check Balance" << endl;
    cout << "2. Deposit Money" << endl;
    cout << "3. Withdraw Money" << endl;
    cout << "4. Exit" << endl;
    cout << "Enter your choice: ";
}

// Function to check and display the current balance
void checkBalance(double balance) {
    cout << fixed << setprecision(2);  // Set precision for displaying currency
    cout << "Current Balance: $" << balance << endl;
}

// Function to deposit money into the account
void deposit(double &balance) {
    double amount;
    cout << "Enter amount to deposit: $";
    cin >> amount;

    if (amount > 0) {
        balance += amount;
        cout << "Deposited $" << amount << ". New Balance: $" << balance << endl;
    } else {
        cout << "Invalid deposit amount. Please enter a positive value." << endl;
    }
}

// Function to withdraw money from the account
void withdraw(double &balance) {
    double amount;
    cout << "Enter amount to withdraw: $";
    cin >> amount;

    if (amount > 0 && amount <= balance) {
        balance -= amount;
        cout << "Withdrew $" << amount << ". New Balance: $" << balance << endl;
    } else if (amount > balance) {
        cout << "Insufficient funds. Withdrawal amount exceeds balance." << endl;
    } else {
        cout << "Invalid withdrawal amount. Please enter a positive value." << endl;
    }
}

#include <iostream>

#include <iomanip> // For std::setw and std::setprecision

using namespace std;

// Function prototypes

void displayMenu();

void checkBalance(double balance);

void deposit(double &balance);

void withdraw(double &balance);

int main() {

double balance = 0.0; // Initial balance

int choice;

do {

displayMenu();

cin >> choice;

switch (choice) {

case 1:

checkBalance(balance);

break;

case 2:

deposit(balance);

break;

case 3:

withdraw(balance);

break;

case 4:

cout << "Exiting the ATM. Have a great day!" << endl;

break;

default:

cout << "Invalid choice. Please select a valid option." << endl;

break;

}

} while (choice != 4);

return 0;

}

// Function to display the ATM menu

void displayMenu() {

cout << "\nATM Menu" << endl;

cout << "1. Check Balance" << endl;

cout << "2. Deposit Money" << endl;

cout << "3. Withdraw Money" << endl;

cout << "4. Exit" << endl;

cout << "Enter your choice: ";

}

// Function to check and display the current balance

void checkBalance(double balance) {

cout << fixed << setprecision(2); // Set precision for displaying currency

cout << "Current Balance: $" << balance << endl;

}

// Function to deposit money into the account

void deposit(double &balance) {

double amount;

cout << "Enter amount to deposit: $";

cin >> amount;

if (amount > 0) {

balance += amount;

cout << "Deposited $" << amount << ". New Balance: $" << balance << endl;

} else {

cout << "Invalid deposit amount. Please enter a positive value." << endl;

}

// Function to withdraw money from the account

void withdraw(double &balance) {

double amount;

cout << "Enter amount to withdraw: $";

cin >> amount;

if (amount > 0 && amount <= balance) {

balance -= amount;

cout << "Withdrew $" << amount << ". New Balance: $" << balance << endl;

} else if (amount > balance) {

cout << "Insufficient funds. Withdrawal amount exceeds balance." << endl;

} else {

cout << "Invalid withdrawal amount. Please enter a positive value." << endl;

}

Explanation

Include Libraries:
- #include <iostream>: For input and output operations.
- #include <iomanip>: For formatting the output (e.g., setting decimal precision).
Function Prototypes:
- void displayMenu();: Displays the ATM menu.
- void checkBalance(double balance);: Displays the current balance.
- void deposit(double &balance);: Allows depositing money and updates the balance.
- void withdraw(double &balance);: Allows withdrawing money and updates the balance.
Main Function:
- Initializes balance to 0.0.
- Runs a do-while loop to repeatedly show the menu and perform operations based on user input.
- Uses a switch statement to handle different user choices.
Menu Display Function (displayMenu):
- Outputs the available options to the console.
Check Balance Function (checkBalance):
- Displays the current balance formatted to two decimal places.
Deposit Function (deposit):
- Takes the deposit amount from the user.
- Checks if the amount is positive before adding it to the balance.
Withdraw Function (withdraw):
- Takes the withdrawal amount from the user.
- Checks if the amount is positive and does not exceed the current balance before subtracting it from the balance.
- Provides appropriate messages if the withdrawal is invalid or exceeds the balance.

Explanation

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