Java snippets

Removes a directory and all of its subdirectories and their files.

/**
- Removes a directory and all of its subdirectories and their files.
- @param path The path of an existing directory. Returns siletly if the path does not exist.
- @throws IOException If failed to traverse tree (due to permissions, hardware failure, etc.) */ static void removeDir(Path path) throws IOException { if (!path.toFile().exists()) { return; } Files.walkFileTree(path, new SimpleFileVisitor() { @Override public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException { Files.delete(file); return FileVisitResult.CONTINUE; }
```
 @Override
 public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
     Files.delete(dir);
     return FileVisitResult.CONTINUE;
 }
```
  });
Refer to subclass in base class

class A<T extends A> { T foo(); } class B extends A { @Override B foo(); }

Java snippets - nimrody/knowledgebase GitHub Wiki