Regex \w and \\w is not working

Processing Coding Questions
2

https://Docs.Oracle.com/javase/10/docs/api/java/io/File.html#getParent()
https://Docs.Oracle.com/javase/10/docs/api/java/io/File.html#getName()

File path = dataFile("test.txt");
println(path);

String folder = path.getParent();
println(folder);

String filename = path.getName();
println(filename);

exit();