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.

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)