蛋疼時寫下代碼

/**
 * 統計項目中一共多少行代碼
 */
public class CountLine {
	
	private double sumLine = 0 ;
	
	public File getRootFolder(String path) {
		File file = new File(path);
		if(file.exists()){
			return file;
		}else{
			try {
				throw new FileNotFoundException();
			} catch (FileNotFoundException e) {
				e.printStackTrace();
			}
		}
		return null;
	}
	
	public void getCountLines(File srcFile) {
		File[] files = srcFile.listFiles();
		for(int i=0; i<files.length; i++){
			File file = files[i];
			if(file.isDirectory()){
				getCountLines(file);
			}else{
				sumLine += countFileLines(file);
			}
		}
	}
	
	public void getCountLines(String projectSrcPath){
		File srcFile = getRootFolder(projectSrcPath);
		getCountLines(srcFile);
	}

	private int countFileLines(File file) {
		InputStream is = null ;
		InputStreamReader isr = null;
		try {
			is = new FileInputStream(file);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		try {
			isr = new InputStreamReader(is,"UTF-8");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		BufferedReader br = new BufferedReader(isr);
		String buffer = null ;
		int lines = 0;
		try {
			while((buffer = br.readLine())!=null){
				if(!("".equals(buffer.trim()))){
					lines++;
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		System.out.println("文件："+file.getPath()+",行數爲："+lines);
		return lines;
	}

	public double getSumLine() {
		return sumLine;
	}

	public void setSumLine(double sumLine) {
		this.sumLine = sumLine;
	}
}