“Invalid escape sequence (valid ones are \b \t \n \f \r \” \' \\ )" syntax error

Question

I wrote code for matching filepath which have extenstion .ncx ,

 pattern = Pattern.compile(\"$(\\\\|\\/)[a-zA-Z0-9_]/.ncx\");
 Matcher matcher = pattern.math         


        

Answer 1

In java \ is a reserved character for escaping. so you need to escape the \.

pattern=Pattern.compile("$(\\\\|\\/)[a-zA-Z0-9_]/.ncx");