Write a Java program that will read in from input file one line at a time until end of file and output the number of words in the line and the number of occurrences of each letter. Define a word to be any string of letters that is delimited at each end by either whitespace, a period, a comma or the beginning or end of the line. You can assume that the input consists entirely of letters, whitespaces, commas and periods. When outputting the number of letters that occur in a line, be sure to count upper and lowercase versions of a letter as the same letter. Output the letters in alphabetical order and list only those letters that do occur in the input line. Write a comment explaining what each line of code does and submit a picture of the output.

For example, the input line:-

I say Hi should produce output similar to the following:- 3 words 1 a 1 h 2 i 1 s 1 y