HashMapを使用して文章の単語を統計する

package johney;

/**
 *                       
 */
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Set;

public class MyHashMap {

	/**
	 * @param args
	 */
	static HashMap map;
	File file;
	static String pathname = "abc.txt";
	static FileInputStream fis;
	static String word;//          
	static Set set;
	static Iterator iterator;
	static char temp;
	static int count;
	static int i = 0;
	static int number = 1;
	static boolean state = false;

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		map = new HashMap();
		File file = new File(pathname);
		try {
			fis = new FileInputStream(file);
			// System.out.println("The file is exists!");
			count = fis.read();
			//      
			while (count != -1) {
				//     
				temp = (char) count;
				//     
				if ((temp >= 'a' && temp <= 'z')
						|| (temp >= 'A' && temp <= 'Z')) {
					word = word + temp;
					state = true;
					// System.out.println(word);
				}
				//      
				else if (state){
					//            map 
					if (word !=" ") {
						if (map.containsKey(word)) {
							number = map.get(word);
							number++;
							map.put(word, number);
							number = 1;
						} else {
							map.put(word, number);
						}
						state = false;
					}
					word = " ";
				}
				//           
				count = fis.read();
				count = fis.read();
			}
			//         
			fis.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		//   map   
		//      
		set = map.keySet();
		iterator = set.iterator();
		while (iterator.hasNext()) {
			word = (String) iterator.next();
			number = map.get(word);
			System.out.println(word + ":" + number);
		}
	}

}