PDFBOX .....JAVA(don't know how to use pdfbox)

Write an application that extracts text from .pdf files and creates bar charts of the number of occurrences of the most frequently used words in the text.

Take user input with a Scanner to get the location of a .pdf file to search.

Design your charts so that they show the ten most frequently-used words in the .pdf. If the pdf contains ten or fewer different words, show all of them. If there are more than ten, show the ten most frequently used words. Make sure to test the application with a .pdf that does contain at least ten words and another that does not.