public static boolean containsFrench(String s) {\n Pattern frenchPattern = Pattern.compile("(?i)[\xc3\xa7\xc3\xa8\xc3\xa9\xc3\xaa\xc3\xae\xc3\xb4\xc5\x93\xc3\xbb]");\n return frenchPattern.matcher(s).find();\n}\nRun Code Online (Sandbox Code Playgroud)\n