Java

Java regex - Split by one point "." (dot)

⏱️ 10 min de lecture 👁️ 1303 vues
You should avoid the dot if you want to apply a split to a literal point:

String withoutextension=filename.split("\\.") [0];

If you don't add the double anti slash, the '.' alone means no characters and you get an exception  ArrayIndexOutOfBoundsException  because the input string is a period ".". This exception is raised when java does not find the regex it is looking for and the output array is empty.

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