spellchecker.java

拼写检查器

package 拼写检查器;

import java.util.*;

public class SpellChecker {

	/*
	 * 创建人：侯良伟
	 * 时间：2008-11-17
	 */
	TreeSet words;

	static TreeSet dictionary;

	public SpellChecker() {
		words = new TreeSet();
		dictionary = new TreeSet();
	}

	//method addToDictionary
	//向方法中添加数据
	public void addToDictionary(String word) {
		final String DELIMITERS = " \n\t\r,.;:'?!()";
		StringTokenizer tokens = new StringTokenizer(word, DELIMITERS);
		String wor;
		while (tokens.hasMoreTokens()) {
			wor = tokens.nextToken().toLowerCase();
			dictionary.add(wor.toLowerCase());
		}
//		dictionary.add(word.toLowerCase());
	}
	public String outputDictionary(){
		String s="";
		Iterator itr=dictionary.iterator();
		while(itr.hasNext()){
			s+=itr.next()+"\n";
		}
		return s;
			
	}

	//method addToWordSet
	//向方法中添加数据
	public void addToWordSet(String line) {
		final String DELIMITERS = " \n\t\r,.;:'?!()";
		StringTokenizer tokens = new StringTokenizer(line, DELIMITERS);
		String word;
		while (tokens.hasMoreTokens()) {
			word = tokens.nextToken().toLowerCase();
			words.add(word);
		}
	}
	public String outputWords(){
		String s="";
		Iterator itr=words.iterator();
		while(itr.hasNext()){
			s+=itr.next()+"\n";
		}
		return s;
	}

//	method compare() 
	//返回不满足字典的LinkedList的对象
	public LinkedList compare() {
		LinkedList misspelled = new LinkedList();
		String word;
		Iterator itr = words.iterator();
		while (itr.hasNext()) {
			word = (String) itr.next();
			if (!dictionary.contains(word))
				misspelled.add(word);
		}
		return misspelled;
	}

}