学步园

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

/**
 * des：
 * author: zbl
 * date: 2014年12月17日
 **/
public class MathTest {
	
	static int line = 0;
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String rootUrl = "F:\\wp\\";
		Recurisive(rootUrl);
		System.out.println(line);
	}

	private static void Recurisive(String rootUrl) {
		// TODO Auto-generated method stub
		File file = new File(rootUrl);
		
		File files[] = file.listFiles();
		try {
			for (int i = 0; i < files.length; i++) {
				if(files[i].isDirectory()==true){
					Recurisive(rootUrl+files[i].getName()+"\\");
				}else{
					if(files[i].getName().endsWith(".java")){
						File f = new File(rootUrl+files[i].getName());
						FileReader fr = new FileReader(f);
						BufferedReader br = new BufferedReader(fr);
						String str = null;
						while((str = br.readLine())!=null){
							line++;
							System.out.println(line+":"+str);
						}
						br.close();
					}
				}
			}
		} catch (Exception e) {
			// TODO: handle exception
			e.printStackTrace();
		}
	}
}