统计一个文件的行数

    public int totalNumber(File file) {        int result = 0;        if (file != null && file.isFile()) {            LineNumberReader lineNumberReader = null;            try {                lineNumberReader = new LineNumberReader(new FileReader(file));                /*Result of Method Call Ignored*/                lineNumberReader.skip(Long.MAX_VALUE);                result = lineNumberReader.getLineNumber();            } catch (IOException e) {                e.printStackTrace();            } finally {                if (lineNumberReader != null) {                    try {                        lineNumberReader.close();                    } catch (IOException e) {                        e.printStackTrace();                    }                }            }        }        return result;    }