java生成一个方法获取该字符串=docfilepicturejpeg中的picture

public static String getFileName(String path) { File file = new File(path); String fileName = file.getName(); int dotIndex = fileName.lastIndexOf("."); if (dotIndex > 0) { fileName = fileName.substring(0, dotIndex); } return fileName; }

调用方式： String path = "doc/file/picture.jpeg"; String fileName = getFileName(path); System.out.println(fileName); // 输出：picture