Objectives: Arrays and Array Lists are both used in java. Using one or the other can be

beneficial between what tasks you are trying to achieve. After completing this

assignment, students will be able to:

$$ Declare an Array and Array List

$$ Implement storage of data into Array and Array List

$$ Managing data in an Array and Array List

Task Description: A dictionary company wants to have a program to keep track of all

words in their dictionary that are palindromes. A palindrome is a word or string that is

written the same way forward and backward. Examples of this would be $$kayak$,$refer$,$

$$rotator$,$ and $$pop$.$ The company wants to be able to give the program a text file full of

words $$words$.$txt$$ and wants a result displayed in the console and a file written with

only palindromes $$arraypalindrome$.$txt$$ and $$arrayListpalindrome$.$txt$.$

As a programmer, you want to determine if creating this program will be more efficient

as an array or an array list. You decide to experiment by storing data in an Array and an

ArrayList.

Create $4$ methods: readFile$(),$ appendToFile$(),$ determinePalindrome$(),$

and getSizeFile$().$

readFile$()$: Read in the file and store words into both data structures.

appendToFile$()$: Append palindrome words to the end of each file.

determinePalindrome$()$: checks if a word is a palindrome or not.

getSizeFile$()$: Gets the number of lines in the file. Used for array size.