This post assumes you know how to do the following in Java:

• Read from a file
• Write to a file
• Set up a loop to read multiple lines from a file

If you don’t know how to do this, go back to the last post on this subject and complete it first.

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We are now going to use a large dictionary file to create some useful text processing algorithms. Please download the file words.txt words.txt and save it to  the root of your machine, ie as “c:\words.txt”.

• Task 1: Write a program that counts the number of words in this file.
• Task 2: Write a program that counts the number of characters in this file.
• Task 3: Write a program that asks for a specific word and prints out the line number at which that word occurs.
• Task 4: Write a program that asks for a specific number of characters n and prints out the number of words in the file that have n characters.
• Task 5: Write a program that asks for a specific character sequence and prints out all the words that contain that character sequence.

Harder problems:

• Write a program that saves the list in a new file, sorted by word length.
• Write a program that asks the user to enter a word and the prints out all the anagrams of that word.
• Write a program that plays hangman by guessing letters randomly.
• Write a program that plays hangman using the dictionary to make intelligent guesses.
• Write a program that allows the user to specify a wordsearch grid, and then uses the dictionary to solve it.
• Write a program that plays Boggle.