Possible Duplicate:
How to get file name without the extension?
I have a list of xml files and I'm trying to return just the file name without the extension. For example, if I have:
String filename = "hello.xml"; How would I return just "hello" with the fact the file names vary?
String filenameSansExt = filename.replaceAll("\\.[^.]*", ""); Using substring() is more efficient rather than using replaceAll() with regex, or any other regex.
Both answers are not quite satisfactory:
lastIndexOf() will throw an exception when '.' is not there (index -1)Correct answer has to check index of lastIndexOf().
You can use the substring function for strings in java. You would start at 0 (the beginning of the string) and end before the 4th to last character (".")
String filename = "hello.xml"; String filename2 = filename.substring(0, filename.length() - 4); 