I'm practicing to differentiate the main method into several kinds of method, and I'm also practicing how to use the code "indexOf, substring, charAt, length, hasNext, next."

The question is asking allow the user to enter a list of letters and a word length, then displays a list of the English words of the entered length that are formed from the letters in the list entered. Also, force to user to enter a length between 1 and 6. Import the file from the file called 'words.txt' that is show on the below. No input should be allowed to crash the program.

By ONLY using for loop, while loop, if-else if-else statement, and using static methods to give your application structure and reduce redundancy.

ex)

Enter the possible letters in your word: wonder Enter the number of letters in your target words:5 List of all 5letter words formed from the letters, wonder: 1 dower drone drown endow owned owner rewon rowed momma-Low End of List: 8 words found jGRASP: operation complete. Enter the possible letters in your word: streea Enter the number of letters in your target words : 5 List of all 5-letter words formed from the letters, streea : 1 arete 2 aster easer 4 eater 5 erase 6 ester 7 rates 8 reset 9 saree 10 setae 11 stare 12 steer 13 stere 14 tares 15 tears 16 tease 17 terse 18 trees End of List: 18 words found -jGRASP: operation complete