Anagram

Find all the anagrams in a dictionary

For interview purpose only. Outside of programming interview and perhaps the Da Vinci Code, I haven't seen much practical use of anagram.

Usage

	try {
		Anagram anagram = new Anagram(); //create an empty object
		anagram.loadDictionary("test/dict.txt");  //load dictionary
		Set<String> result = anagram.query("abc"); //query 
		for(String s : result){
			System.out.println(s);
		}
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}

Equivalently, we can initialize an Anagram object with a dictionary directly.

	try {
		Anagram anagram = new Anagram("test/dict.txt"); //create an Anagram object and load dictionary
		Set<String> result = anagram.query("abc"); //query 
		for(String s : result){
			System.out.println(s);
		}
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}

After loading the dictionary, we can save the preprocessed dictionary to a file by:

	anagram.saveDictionary("test/preprocessed.txt");

Next time, we can load directly from the preprocessed file, saving the time to preprocess the dictionary again:

	anagram.loadPreprocessedDictionary("test/preprocessed.txt");

We can also create an object directly with a preprocessed dictionary:

	Anagram anagram = new Anagram("test/preprocessed.txt", true);

Enjoy it.