(Summarizing the File Types in a Directory) Section 15.3 demonstrated how to get information about files and directories on disk. In addition, you used a Di rectoryStream to display the contents of a directory. Interface DirectoryStream now contains defaul t method entries, which returns a Stream. Use the techniques from Section 15.3, DirectoryStream method entries, lambdas and streams to summarize the types of files in a specified directory.
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