public static void removeLine(String path, int lineNum) {
		BufferedReader reader = null;
		StringBuilder content = new StringBuilder();
		try {
			reader = new BufferedReader(new InputStreamReader(
					new FileInputStream(path), "utf-8"));
			int currentLineNum = 0;
			String line;
			while ((line = readLine(reader)) != null) {
				currentLineNum++;
				if (currentLineNum != lineNum) {
					content.append(line);
				}
			}
		} catch (IOException e) {
			//
		} finally {
			try {
				reader.close();
			} catch (IOException ex) {
				//
			}
		}

		BufferedWriter writer = null;
		try {
			writer = new BufferedWriter(new OutputStreamWriter(
					new FileOutputStream(path), "utf-8"));
			writer.write(content.toString());
		} catch (IOException e) {
			//
		} finally {
			try {
				writer.close();
			} catch (IOException ex) {
				//
			}
		}
	}