java代码行数计算器

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;

/**
* **********************************************
* @description 计算源代码（src）行数，不计算空行
*     宗旨：将src下所有文件组装成list,再筛选出文件，对文件进行遍历读取
* @version 1.0
***********************************************
*/
public class LineCounter {
List<File> list = new ArrayList<File>();
int linenumber = 0;

FileReader fr = null;
BufferedReader br = null;

public void counter(String projectName) {
//        String path = System.getProperty("user.dir");
String path = LineCounter.class.getResource("/").getPath();  // 同下个path
path = path.substring(0, path.length() - 24) + projectName + "/src";
System.out.println(path);
File file = new File(path);
File files[] = null;
files = file.listFiles();
addFile(files);
isDirectory(files);
readLinePerFile();
System.out.println("Totle:" + linenumber + "行");
}

// 判断是否是目录
public void isDirectory(File[] files) {
for (File s : files) {
if (s.isDirectory()) {
File file[] = s.listFiles();
addFile(file);
isDirectory(file);
continue;
}
}
}

//将src下所有文件组织成list
public void addFile(File file[]) {
for (int index = 0; index < file.length; index++) {
list.add(file[index]);
// System.out.println(list.size());
}
}

//读取非空白行
public void readLinePerFile() {
try {
for (File s : list) {
int yuan = linenumber;
if (s.isDirectory()) {
continue;
}
fr = new FileReader(s);
br = new BufferedReader(fr);
String i = "";
while ((i = br.readLine()) != null) {
if (isBlankLine(i))
linenumber++;
}
System.out.print(s.getName());
System.out.println("\t\t有" + (linenumber - yuan) + "行");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (Exception e) {
}
}
if (fr != null) {
try {
fr.close();
} catch (Exception e) {
}
}
}
}

//是否是空行
public boolean isBlankLine(String i) {
if (i.trim().length() == 0) {
return false;
} else {
return true;
}
}

public static void main(String args[]) {
LineCounter lc = new LineCounter();
String projectName = "";     //这里传入你的项目名称
lc.counter(projectName);
}
}