Answer to Question #329249 in C++ for Mr Nested

Question

, defined a class Account to implement basic bank account functionalities. Redefine the Account class to update the deposit, withdraw and display Account information operations.  Overload the + and - operators to perform the deposit and withdraw operations, respectively.  Overload the + and - operators such that the value that will be used to increase (or decrease) the Account balance can be on the left or right of the operator. Example: savings + 123.45 (or 123.45 + savings), savings – 123.45 (or 123.45 – savings) where savings is an Account object.  Overload the insertion operator to display Account information.  Overload < and == operators. An Account is considered lower than another when the balance is lower, and equal when Accounts have the same account number. Write a main() method instantiating two Account objects and test (demonstrate) that all the overloaded operators work correctly. The withdrawal operation should be tested at least two times for a successful and unsuccessful withdrawal.

Answer 1

#include <iostream>
#include <string>
#include<cstdlib>
#include<ctime>

using namespace std;

class Account
{
	int accNum;
	string name;
	float balance;
public:
	Account() {}
	Account(int _accNum, string _name, float _balance)
		:accNum(_accNum), name(_name), balance(_balance) {}
	void Assign()
	{
		srand(static_cast<unsigned int>(time(0)));
		accNum = rand();
		cout << "Please, enter your name: ";
		cin >> name;
		cout << "Please, enter your balance: ";
		cin >> balance;
	}


	Account operator+ (float a)
	{
		balance += a;
		return *this;
	}
	Account operator- (float a)
	{
		balance -= a;
		return *this;
	}
	bool operator== (Account& a)
	{
		return balance == a.balance;
	}
	bool operator< (Account& a)
	{
		return balance < a.balance;
	}
	friend float operator+ (float, Account&);
	friend float operator- (float, Account&);
	friend ostream& operator<< (ostream& os, Account& a);
};


ostream& operator<< (ostream& os, Account& a)
{
	return os << "\nYour Account number is " << a.accNum
		<< "\nYour Account name is " <<a.name
		<< "\nYour balance is " << a.balance<<endl;
}
float operator+ (float f, Account& a)
{
	return f + a.balance;
}


float operator- (float f, Account& a)
{
	return f - a.balance;
}


int main()
{
	Account a(123, "Jack", 2000);
	Account b;
	b.Assign();
	a + 500;
	cout << a<<b;
	cout << 6000 - a<<endl;
	cout << 6000 + a;
	b - 200;
	cout << b;
	cout << (a < b)<<endl;
	cout << (a == b);
}