Define a class called Journal that could be used to store an entry for a research paper that will be published. The class should have instance variables to store the author's name, title of the paper, and the date of submission. Add a constructor to the class that allows the user of the class to set all instance variables. Also add a method, displayDetails(), that outputs all the instance variables, and another method called getSubmissionDetails() that returns the title of the paper, with the first letter of each word capitalized. Test your class from the main() method.