dictionary.java

词法分析器词法分析其词法分析器词法分析其词法分析器词法分析其

// 中文分词词典类
// Class for Dictionary
// 
import java.util.*;
import java.io.*;
import java.lang.*;

public class Dictionary
{
	HashMap hm;		//a word set
	
	public Dictionary()
	{
		hm = new HashMap();
	}
	
	public Dictionary(String fileName)
	{
		hm = new HashMap();
		Load(fileName);
	}

	public void Load(String fileName)
	{
		try 
		{
			BufferedReader in=
				new BufferedReader(
					new FileReader(fileName) );
			
			String s;
			String []words;
			while((s = in.readLine()) != null)
			{
				words = s.split("\t");
				Integer freq = new Integer(words[1]);
				hm.put(words[0], freq );
			}
		}
		catch(IOException e)
		{
			System.out.println("Error: " + e);
		}
	}

	public boolean Find(String word)
	{
		return hm.containsKey(word);
	}

	public Integer GetFreq(String word)
	{
		if(Find(word) == false)
		{
			return new Integer(0);
		}
		return (Integer)hm.get(word);
	}
}