学步园

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;



public class CodeCounter {

    static int normalLines = 0;//普通行
    static int commentLines = 0;//注释行
    static int blankLines = 0;//空行
    
    
    public static void main(String[] args) {
        
        File f = new File("D:/code");
        File[] codeFile = f.listFiles();
        for(File child :codeFile){
            
        if(child.getName().matches(".*\\.java$"));{
            parse(child);
        }
        }
        
        
        
        System.out.println("normalLines = " + normalLines);
        System.out.println("commentLines = " + commentLines);
        System.out.println("blankLines = " + blankLines);
    }


    private static void parse(File f) {
        BufferedReader br = null;
        boolean comment = false;
        try {
            br = new BufferedReader(new FileReader(f));
            String line = "";
            while((line = br.readLine())!=null){
                line = line.trim();
                if(line.matches("^[\\s&&[^\\n]]*")){
                    blankLines++;
                }else if(line.matches("/*")&&!line.endsWith("*/")){
                    commentLines++;
                    comment = true;
            
                }else if( true == comment){
                    commentLines++;
                    if(line.endsWith("*/")){
                        comment = false;
                    }
                }else{
                    normalLines++;
                }
                
            }
            
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            if(br!=null){
                try {
                    br.close();
                    br= null;
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            
        }
        
    }

}