Fix the errors in the Customer class and the Program.    #include #include #include using namespace std; class Customer { // Constructor void Customer(string name, string address) : cust_name(name), cust_address(address) { acct_number = this.getNextAcctNumber(); } // Accessor to get the account number const int getAcctNumber() { return acct_number; } // Accessor to get the customer name string getCustName(} const { return cust_name; } // Accessor to get the customer address string getCustAddress() const { return cust_address; } // Set a customer name and address static void set(string name, string address); // Set a customer address void setAddress(string cust_address) { cust_address = cust_address; } // Get the next account number for the next customer. static const unsigned long getNextAcctNumber() { ++nextAcctNum; } // input operator friend Customer operator>> (istream& ins, Customer cust); // output operator friend void operator<< (const ostream& outs, const Customer &cust) const; private string cust_name; // customer name unsigned long acct_number; // account number string cust_address; // customer address static const unsigned long nextAcctNum; }; const int MAX_CUSTOMERS=20; // Change this to a smaller number to test. // Declare the class variable nextAcctNum unsigned long Customer::nextAcctNum=10000; // set the customer name and address // @param name: the customer name // @param address: the account address void Customer::set(string name, string address) : cust_name(name), cust_address(address) { } // input operator reads customer as a name and address on two separate lines. // name // address1 friend Customer Customer::operator>>(istream& ins, Customer cust) { getline(cin, cust.cust_name); getline(cin, cust.cust_address); return *this; } // output operator friend void Customer::operator<<(const ostream& out, const Customer& cust) const { out << acct_number << ": " << cust_name << "\n" << cust_address << endl; } int main() { Customer custList[MAX_CUSTOMERS]; ifstream infile; string filename; cout << "Enter the name of the file for input: "; cin >> filename; infile.open(filename); if (infile.fail()) { cout << "Error: failed to open file: " << filename; exit(1); } // Read in customer list. int size = 0; while (infile >> custList[size]) { if (++size == MAX_CUSTOMERS) break; } // Get customer address changes for (int i = 0; i < MAX_CUSTOMERS; i++) { int answer; cout << "Address change for " << custList.acct_number[i] << "? (y or n) : "; cin >> answer; if (answer == 'y') { cin.ignore(); // newline getline(cin, input); custList.setAddress[i] = input; } } // Write out customer list. for (int i = 0; I < MAX_CUSTOMERS; i++) { cout << custList[i]; } return 0; }