Question 1. Write a class called RestaurantCheck. It should have the following: (use OOPs concepts)

• Fields called check_number, sales_tax_percent, subtotal, table_number, and server_name representing an identification for the check, the bill without tax added, the sales tax percentage, the table number, and the name of the server. • A constructor that sets the values of all four fields • A method called calculate_total that takes no arguments (besides self) and returns the total bill including sales tax. • A method called print_check that writes to a file called check###.txt, where ### is the check number and writes information about the check to that file, formatted like below:

  Check Number: 443
  Sales tax: 6.0%
  Subtotal: $23.14
  Total: $24.53
  Table Number: 17
  Server: Sonic the Hedgehog

Test the class by creating a RestaurantCheck object and calling the print_check() method.

In [5]:
class RestaurantCheck:
    def __init__(self, check_number, sales_tax_percent, subtotal, table_number, server_name):
        self.check_number = check_number
        self.sales_tax_percent = sales_tax_percent
        self.subtotal = subtotal
        self.table_number = table_number
        self.server_name = server_name
        
        
    def calculate_total(self):
        total = self.subtotal + (self.subtotal * self.sales_tax_percent / 100)
        return total
    
    def print_check(self):
        filename = f"check{self.check_number}.txt"
        with open(filename, "w") as file:
            file.write(f"Check Number: {self.check_number}\n")
            file.write(f"Sales tax: {self.sales_tax_percent}%\n")
            file.write(f"Subtotal: ${self.subtotal:.2f}\n")
            file.write(f"Total: ${self.calculate_total():.2f}\n")
            file.write(f"Table Number: {self.table_number}\n")
            file.write(f"Server: {self.server_name}\n")
In [6]:
check = RestaurantCheck(443, 6.0, 23.14, 17, "Sonic the Hedgehog")
check.print_check()
In [ ]:

Question 2. Write a Regular Expression Python function to Validate Phone No, (Must be 10 digits) Name, (first Char must be uppercase) E-Mail, (abc@abc.com) Date .(DD-MM-YYYY)

In [7]:
import re

def validate_input(phone_number, name, email, date):
    # Phone number validation (10 digits)
    if not re.match(r'^\d{10}$', phone_number):
        return False
    
    # Name validation (first character uppercase)
    if not re.match(r'^[A-Z][a-zA-Z\s]*$', name):
        return False
    
    # Email validation (abc@abc.com)
    if not re.match(r'^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$', email):
        return False
    
    # Date validation (DD-MM-YYYY)
    if not re.match(r'^(0[1-9]|1[0-9]|2[0-9]|3[01])-(0[1-9]|1[0-2])-\d{4}$', date):
        return False
    
    # All validations passed
    return True
In [10]:
phone_number = '1234767890'
name = 'John Doe'
email = 'johndoe@example.com'
date = '01-01-2023'

if validate_input(phone_number, name, email, date):
    print("All inputs are valid.")
else:
    print("Invalid input detected.")

All inputs are valid.
In [ ]: