- public String getExtension(String fileName) {
- if(fileName == null)
- return "";
- int index = fileName.lastIndexOf(".");
- String extension = (index != -1) ? fileName.substring(index + 1).toLowerCase().intern() : "";
- return extension;
- }
- //该片段来自于http://www.codesnippet.cn/detail/081120136981.html
来源: http://www.codesnippet.cn/detail/081120136981.html