Bank Mangement System!

 #include <iostream>

using namespace std;

class Bank

{

private:

    string name;

    string address;

    string type;

    float balance;

    int transactions = 0;

    static int id;

public:

    int assign();

    void getdata();

    void input_output();

    void change();

    void showdata();

};

int Bank :: id = 1000;

int Bank :: assign()

{

    return id++;

}

void Bank::getdata(/* args */)

{

    cout << "Enter Depositor Name : \n";

    cin >> name;

    cout << "Enter Depositor Address : \n";

    cin.ignore();

    getline(cin,address);

    cout << "Enter Account Type : \n";

    cin >> type;

    cout << "Enter Depositor Balance : \n";

    cin >> balance;

}

void Bank::input_output()

{

    int a;

    float b;

    cout<<"Please,press 1 for Insertion:\n\tpress 2 for withdrawal:\n";

    cin >> a;

    switch (a)

    {

    case 1 : cout <<"How much do you want to insert?\n";

                cin >> b;

                balance+=b;

                transactions++;

        break;

    case 2 : cout <<"How much do you want to withdraw?\n";

                cin >> b;

                if(b<=balance)

                {

                    balance-=b;

                    transactions++;

                }

                else

                {

                    cout << "Insufficient Balance !!\n";

                }

    default:

        break;

    }

}

void Bank :: change()

{

    string b;

    cout << "Do you want to change the address?\nPlease,press(1) to change :\n";

    cin >> b;

    if(b == "1")

    {

        cout << "Enter the new address!:\n";

        cin >> b;

        address = b;

    }

}

void Bank :: showdata()

{

  cout << "Depositor Name : " << name << endl;

  cout << "Depositor ID : BA" << assign() << endl;

  cout << "Depositor Address : " << address << endl;

  cout << "Account Type : " << type << endl;

  cout << "Account Balance : " << balance << endl;

  cout << "Account Transactions : " << transactions << endl;

}

int main()

{

    Bank Account[2];

    for(int i = 0;i<2;i++)

    {

        Account[i].getdata();

    }

    for(int i = 0;i<2;i++)

    {

        cout << "Depositor No : " << i+1 << endl;

        Account[i].input_output();

        Account[i].change();

    }

    for(int i = 0;i<2;i++)

    {

        cout << "Depositor No : " << i+1 << endl;

        Account[i].showdata();

        cout << "=================="<<endl;

    }

    return 0;

}