Goals . Use a new data type, double , for all numeric variables that you work with. Read input from the user using nextDouble) instead of nextInt) Do quite a bit of arithmetic calculation, utilizing four of the five arithmetic operators (modulus % won't be used in this assignment) weve discussed so far. . Use a nested if / else structure to correctly generate conditional output. Overview There are many ways to estimate the reading or grade level of a document. Two such methods are the Gunning Fog Index and the Flesch Formula. Calculations that determine a reading level do not indicate how well a reading will be understood by the target audience nor take into account the content of the material itself. Rather, the leveling method can only estimate which audience could be a target for the document. One application of generating reading levels for documents or books is to enable teachers to determine what books would be appropriately challenging for a student in their class without taking into account the content of the material itself. By determining a student's individual reading level, teachers can also try to challenge students by suggesting books or documents that are above their current level. Both the Gunning Fog Index and the Flesch Formula methods require a document sample size of at least 100 words to attempt to determine an accurate reading level determination. Given just a few pieces of information, we can determine the grade-level appropriateness of a given document