java get extension name
The fileName is a variable which contains the name of your file. lastIndexOf() will give you the index of the last dot in a file name., While programming java on many occasions we need to get extension of from file paths or file name. For this type of work apache commmons ..., If filename is empty or null, getExtension(String filename) will return the instance it was given. Otherwise, it returns extension of the filename. To do this it uses the method indexOfExtension(String) which, in turn, uses lastIndexof(char) to find the , // Modified from EboMike's answer String extension = "/path/to/file/foo.txt".substring("/path/to/file/foo.txt".lastIndexOf('.')); extension should have ".txt" in it when run., Plus you get a lot of other helpful, tested stuff. Of course in the case of the double file extension you may need to use the methods more than ..., The removeExtension method preserves the rest of the path along with the filename. There is also a similar getExtension . /** * Remove the file ...,File extension is: txt File extension is: File extension is: txt File extension is: Note that here I am not checking if file exists or not, but in real programming scenarios you should check that file exists or not before processing further. , BTW, if you want to split a path and get the full filename including but not limited to the dot extension, using a path with forward slashes,,getExtension() from apache Commons library. ... between file names with an empty extension (dot at the end) and files without extension (no dot in the file name).
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 java get extension name 相關參考資料
How to get file extension in Java? - Master Of Programming
The fileName is a variable which contains the name of your file. lastIndexOf() will give you the index of the last dot in a file name. http://masterofprogramming.com Best Way To Get File Extension In Java – code4copy
While programming java on many occasions we need to get extension of from file paths or file name. For this type of work apache commmons ... https://www.code4copy.com How to Get the File Extension of a File in Java | Baeldung
If filename is empty or null, getExtension(String filename) will return the instance it was given. Otherwise, it returns extension of the filename. To do this it uses the method indexOfExtension(Stri... https://www.baeldung.com How do I get the file extension of a file in Java? - Stack Overflow
// Modified from EboMike's answer String extension = "/path/to/file/foo.txt".substring("/path/to/file/foo.txt".lastIndexOf('.')); extension should have ".txt"... https://stackoverflow.com Get file extension in java - Stack Overflow
Plus you get a lot of other helpful, tested stuff. Of course in the case of the double file extension you may need to use the methods more than ... https://stackoverflow.com file - How to get the filename without the extension in Java ...
The removeExtension method preserves the rest of the path along with the filename. There is also a similar getExtension . /** * Remove the file ... https://stackoverflow.com How to Get File Extension in Java - JournalDev
File extension is: txt File extension is: File extension is: txt File extension is: Note that here I am not checking if file exists or not, but in real programming scenarios you should check that file... https://www.journaldev.com file - Java: splitting the filename into a base and extension ...
BTW, if you want to split a path and get the full filename including but not limited to the dot extension, using a path with forward slashes, https://stackoverflow.com Is there a new Java 8 way of retrieving the file extension ...
getExtension() from apache Commons library. ... between file names with an empty extension (dot at the end) and files without extension (no dot in the file name). https://stackoverflow.com |