Regular expressions (regex) are extremely useful in extracting information from any text by searching for one or more matches of a specific search pattern. The basic anchors - ^ and $ expression action ^The matches any string that starts with The end$ matches a string that ends with end ^The end$ exact string match (starts and ends with The end) pragmatic matches any string that has the text pragmatic in it   The basic quantifiers — * + ? and...

Adding a floating decimal point for n number of places is quite easy to achieve.  The key to understand is the receive an outcome of a fraction the numbers need to be Double.  So Int numbers will result in a whole number product.  By way of example: 80 / 3 = 26 We know that this result is incorrect.  To get the correct outcome the equation needs to be as follows: 80.0 / 3.0 = 26.666666666666667 If you have a whole number - add Double to the whole number.  So...