Reimplement Exercise 17.11 using parallel streams. Use the Date/Time API timing techniques to compare the time required for the sequential and parallel versions of the program.

Exercise 17.11

Demonstrated how to get information about files and directories on disk. In addition, you used a DirectoryStream to display the contents of a directory. Interface DirectoryStream now contains default method entries, which returns a Stream. Use the techniques, DirectoryStream method entries, lambdas and streams to summarize the types of files in a specified directory.