正则表达式 统计java文件代码的数量

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
/**
 * 
 * @author Mr Luo
 * email [e-mail]
 */

public class CodeCounter {
	static long normalLines = 0;
	static long commentLines = 0;
	static long whiteLines = 0;
	
	public static void main(String[] args) {
		File f = new File("D:\\New folder");
		File[] codeFiles = f.listFiles();
		for (File child : codeFiles){
			if(child.getName().matches(".*\\.java{1}quot;)){
				parse(child);
			}
		}
		System.out.println("normalLines: " + normalLines);
		System.out.println("commentLines: " + commentLines);
		System.out.println("whiteLines: " + whiteLines);
	}
	private static void parse(File child) {
		BufferedReader bf = null;
		boolean comment = false;
		try {
			bf = new BufferedReader(new FileReader(child));
			String line = "";
			while((line = bf.readLine()) != null) {
				line = line.trim();
				if(line.matches("^[\\s&&[^\\n]]*{1}quot;)){
					whiteLines ++;
				} else if(line.startsWith("/*") && !line.endsWith("*/")){
					commentLines ++;
					comment = true;
				} else if (true == comment){
					commentLines ++;
					if(line.endsWith("*/")){
						comment = false;
					}
				} else if(line.startsWith("//")){
					commentLines ++;
				} else if(line.startsWith("/*") && (line.endsWith("*/"))){
					commentLines ++;
				}
				else{
					normalLines ++;
				}
			}
		} catch (FileNotFoundException e){
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if(bf != null) {
				try {
					bf.close();
					bf = null;
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
	}
}