Java Coding Problems

JDK 8, Files.walk()

Starting with JDK 8, the Files class has been enriched with two walk() methods. These methods return a Stream that is lazily populated with Path. It does this by walking the file tree that's rooted at a given starting file using the given maximum depth and options:

public static Stream<Path> walk​(  Path start, FileVisitOption...options)     throws IOExceptionpublic static Stream<Path> walk​(  Path start, int maxDepth, FileVisitOption...options)     throws IOException

For example, let's display all the paths from D:/learning that start with D:/learning/books/cdi:

Path directory = Paths.get("D:/learning");Stream<Path> streamOfPath = Files.walk(  directory, FileVisitOption.FOLLOW_LINKS);streamOfPath.filter(e -> e.startsWith("D:/learning/books/cdi")) ...