Answer to Question #203427 in C++ for Rohit Sharma

Question

In this assignment is to simulate an ATM machine. Program should able to do the following 

operations:

A. Create accounts for the users. A user account is created using User ID and 

Password. Every user has unique User ID and Password. 

B. A user should able to login using his User ID and Password.

C. A user can quit the program.

D. Provision to Delete a User 

Initially there are no users. There program should prompt for the following option:

1) New Account,

2) Login, 

3) Quit and 

4) Delete an Account

Depending upon the option selected necessary action to be taken. New Account option adds a 

user account. When a user is added then the total number of users is increased by one. For 

successful Login option user will be able to do the following: 

a) Withdraw money, 

b) Deposit money, and 

c) Request balance, 

Answer 1

#include<iostream>
#include<string>


using namespace std;


class Account{
private:
	string ID;
	string password;
	float balance;
public:
	Account(){}


	Account(string ID,string password){
		this->ID=ID;
		this->password=password;
		this->balance=0;
	}


	string getID(){
		return this->ID;
	}
	string getPassword(){
		return this->password;
	}


	float getBalance(){
		return balance;
	}
	void setID(string ID){
		this->ID=ID;
	}
	void setPassword(string password){
		this->password=password;
	}
	void deposit(float amount){
		if(amount>0){
			this->balance+=amount;
		}else{
			cout<<"\nThe amount<=0!\n\n";
		}
	}
	void withdraw(float amount){
		if(amount>0){
			if(this->balance>=amount){
				this->balance-=amount;
			}else{
				cout<<"\nThe amount > balance!\n\n";
			}
		}else{
			cout<<"\nThe amount<=0!\n\n";
		}
	}
};




int getIndexAccout(Account accounts[],int totalNumberUsers,string ID){
	for(int i =0;i<totalNumberUsers;i++){
		if(ID==accounts[i].getID()){
			return i;
		}
	}
	return -1;
}


int isLogin(Account accounts[],int totalNumberUsers,string ID,string password){
	for(int i =0;i<totalNumberUsers;i++){
		if(ID==accounts[i].getID() && password==accounts[i].getPassword()){
			return i;
		}
	}
	return -1;
}


int main (){
	string ID;
	string password;
	float amount;
	int ch=0;
	Account accounts[100];
	int totalNumberUsers=0;
	int index;


	while(ch!=3){
		cout<<"1) New Account\n";
		cout<<"2) Login\n";
		cout<<"3) Quit\n";
		cout<<"4) Delete an Account\n";
		cout<<"Your choice: ";
		cin>>ch;
		cin.ignore();
		if(ch==1){
			cout<<"Enter the user ID: ";
			getline(cin,ID);
			cout<<"Enter the user password: ";
			getline(cin,password);
			accounts[totalNumberUsers]=Account(ID,password);
			totalNumberUsers++;
		}else if(ch==2){
			if(totalNumberUsers>0){
				cout<<"Enter the user ID: ";
				getline(cin,ID);
				cout<<"Enter the user password: ";
				getline(cin,password);
				index=isLogin(accounts,totalNumberUsers,ID,password);
				if(index!=-1){
					ch=-1;
					while(ch!=4){
						cout<<"1. Withdraw money\n";
						cout<<"2. Deposit money\n"; 
						cout<<"3. Request balance\n";
						cout<<"4. Log out\n";
						cout<<"Your choice: ";
						cin>>ch;


						if(ch==1){
							cout<<"Enter amount to withdraw: ";
							cin>>amount;
							accounts[index].withdraw(amount);
						}else if(ch==2){
							cout<<"Enter amount to deposit: ";
							cin>>amount;
							accounts[index].deposit(amount);
						}else if(ch==3){
							cout<<"\nThe balance: "<<accounts[index].getBalance()<<"\n\n";
						}else if(ch==4){
							//log out
						}else{
							cout<<"\nWrong choice.\n\n";
						}
					}
				}else{
					cout<<"\nWrong ID or password.\n\n";
				}
			}else{
				cout<<"\nNo accounts.\n\n";
			}
		}else if(ch==3){
			//exit
		}else if(ch==4){
			if(totalNumberUsers>0){
				cout<<"Enter the user ID to delete: ";
				getline(cin,ID);
				cout<<"Enter the user password to delete: ";
				getline(cin,password);
				index=isLogin(accounts,totalNumberUsers,ID,password);
				if(index!=-1){
					for(int i =index;i<totalNumberUsers-1;i++){
						accounts[i]=accounts[i+1];
					}
					totalNumberUsers--;
					cout<<"\nThe account has been deleted.\n\n";
				}else{
					cout<<"\nWrong ID or password.\n\n";
				}
			}else{
				cout<<"\nNo accounts.\n\n";
			}
		}else{
			cout<<"\nWrong choice.\n\n";
		}
	}
	
	return 0;
}