Objective: Design and implement a word unscrambler game in Java. Details: Your program should read in a random word from a file called words.txt (note the lack of  capitalization) that you provide. There should not be any hard limit on the number of words in  the file. If words were added/removed from the file, your program should recognize such  changes of the words.txt and handle appropriately next time it runs. The file should contain one  word per line. To read a random word you can generate a random number between 1 and the  number of lines, and skip n-1 lines before reading the word. Scramble the word by swapping  random pairs of letters a random number of times. Display the scrambled word with character  indexes on top. Assume that the word is always no more than ten characters (so that index can be  within 0-9 range, inclusive). Offer the user a menu with the following choices: • Enter 1 to swap a pair of letters If this option is selected prompt the user to enter two indexes and swap the letters. Print an error  message if the indexes are invalid. If the word is unscrambled successfully print a congratulatory  message containing the word and the number of steps it took to unscramble. Otherwise display  the new word, and offer the menu again.  • Enter 2 to solve If this option is selected print the unscrambled word and quit. • Enter 3 to quit If this option is selected quit

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Objective:
Design and implement a word unscrambler game in Java.

Details:
Your program should read in a random word from a file called words.txt (note the lack of 
capitalization) that you provide. There should not be any hard limit on the number of words in 
the file. If words were added/removed from the file, your program should recognize such 
changes of the words.txt and handle appropriately next time it runs. The file should contain one 
word per line. To read a random word you can generate a random number between 1 and the 
number of lines, and skip n-1 lines before reading the word. Scramble the word by swapping 
random pairs of letters a random number of times. Display the scrambled word with character 
indexes on top. Assume that the word is always no more than ten characters (so that index can be 
within 0-9 range, inclusive).
Offer the user a menu with the following choices:
• Enter 1 to swap a pair of letters
If this option is selected prompt the user to enter two indexes and swap the letters. Print an error 
message if the indexes are invalid. If the word is unscrambled successfully print a congratulatory 
message containing the word and the number of steps it took to unscramble. Otherwise display 
the new word, and offer the menu again. 
• Enter 2 to solve
If this option is selected print the unscrambled word and quit.
• Enter 3 to quit
If this option is selected quit

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