Untitled

#include<iostream>

using namespace std;

void showBalance(double balance);
double deposit();
double withdraw(double balance);


int main()
{
	double balance=0;
	int choice=0;
	
	do{
		
		
		cout<<"Enter your Choice:\n";
		cout<<"1. Show Balance\n";
		cout<<"2. Deposit\n";
		cout<<"3. Withdraw\n";
		cout<<"4.Exit\n";
		cin>>choice;
		
		switch(choice)
		{
			
			case 1:showBalance(balance);
				
				break;
			
			
			case 2:balance=balance+deposit();
				showBalance(balance);
				break;
			
			
			case 3:withdraw(balance);
				showBalance(balance);
				break;
			
			
			case 4:
				cout<<"Thanks for visiting";
				break;
				
				default:cout<<"Invalid";
		}
		
	}while(choice != 4);
return 0;	
	
}


void showBalance(double balance)
{
	cout<<"Your Balance is Rs"<<balance<<"\n\n";
	
}

double deposit()
{
	double amt=0;
	cout<<"Enter amount=";
	cin>>amt;
	if(amt>0)
	{
		return amt;
	}
	
	else
	{
		cout<"That invalid\n";
	 } 
}


double withdraw (double balance)
{
	double amt=0;
	cout<<"Enter amount";
	cin>>amt;
	
	if(amt>0)
	{
	cout<<"Insufficient amount";
	return 0;
	}
	
	return amt;
}