Android -- extract file name from path, android -- Extract

Android -- extract file name from path, android -- Extract

Method 1: Use the String class

Java code  

1. Public String getFileName (String pathandname ){
3. Int start = pathandname. lastIndexOf ("/");
4. Int end = pathandname. lastIndexOf (".");
5. If (start! =-1 & end! =-1 ){
6. Return pathandname. substring (start + 1, end );
7. } Else {
8. Return null;
9. }
11. }

Method 2: Use Regular Expressions

Java code  

1. String regEx = ". + \\\\ (. +) $ ";
2. String str = "C: \ Documents ents and Settings \ Administrator \ My Documents ents \ myfile.txt ";
3. Pattern p = Pattern. compile (regEx );
4. Matcher m = p. matcher (str );
5. Boolean rs = m. find ();
6. If (rs ){
7. For (int I = 1; I <= m. groupCount (); I ++)
8. {
9. System. out. println (m. group (I); // Matching content in parentheses
10. }
11. }

How can we find a better way to leave footprints ....