Author: Neil Fin

SOLUTION: Learn how to concatenate two or more strings

SOLUTION: Learn technique to calculate number of working days between two dates

SOLUTION: Learn how to retrieve year from a date

SOLUTION: Learn how to find the Day Number of the Year of any date

SOLUTION: Learn how to check whether a date has a valid date format

SOLUTION: Learn how to make first letter uppercase of every word in a string

SOLUTION: Learn how to convert an integer to a string

SOLUTION: Learn how to find number of days in a month

SOLUTION: Learn how to change all the characters in a string to uppercase.

SOLUTION: Learn how to convert a string to an integer