Match file names from file paths using regular expressions

The first one is , The file name does not contain an extension ：

 Regular expression writing ：([^<>/\\\|:""\*\?]+)\.\w+$

java Writing in Chinese ：

 
……
String reg = "([^<>/\\\\|:\"\"\\*\\?]+)\\.\\w+$+";
Matcher m = Pattern.compile(reg).matcher(uri); //uri For the path that needs to be matched 
Sring filename =  null;
if (m.find()) {  
     filename = m.group(1);  
}  
……

 Example ：


 The second kind ： The file name contains the extension 
 Regular expression writing ：([^<>/\\\|:""\*\?]+\.\w+$)

 explain ： The two matching rules are compatible windows and linux System .