Once you have the list of words in a set, it's easy to read the words from a file and check whether each word is in the set. (It should be 72875.) You could also use the contains method to check for the presence of some common word in the set.
To make sure that you've read all the words, check the size of the set. For the purposes of this program, convert all words to lower case before putting them in the set. Start your main program by reading the words from words.txt and storing them in a HashSet. (For the wordlist file, a token is simply a word.) Process(tk) // do something with the token (new File("/classes/s09/cs225/words.txt")) Īnd that a file can be processed, token by token, in a loop such as: You can create scanner, filein, for reading from a file with a statement such as: Since there is no need to have the words stored in order, you can use a HashSet for maximum efficiency. To make the list easy to use, you can store the words in a set. You will look up words in this list to check whether they are correctly spelled.
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The file words.txt (in the code directory) contains a list of English words, with one word on each line. You will also need to be able to traverse a set, using either an iterator or a for-each loop.
set.add(item) - Adds the item to the set, if it is not already there.set.size() - Returns the number of items in the set.Recall that if set is a Set, then the following methods are defined: This lab, you will need to use some of the methods that are defined in the Set interface. You will use these classes to implement a spell checker. Lab 9: Sets in the Java Collection Frameworkįor this week's lab, you will use two of the classes in the Java Collection Framework: HashSet and TreeSet.
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