| Package | Description | 
|---|---|
| java.nio.channels | Defines channels, which represent connections to entities that are capable of
 performing I/O operations, such as files and sockets; defines selectors, for
 multiplexed, non-blocking I/O operations. | 
| java.nio.file | Defines interfaces and classes for the Java virtual machine to access files,
 file attributes, and file systems. | 
| java.nio.file.spi | Service-provider classes for the  java.nio.filepackage. | 
| Modifier and Type | Method and Description | 
|---|---|
| static FileChannel | FileChannel. open(Path path,
    OpenOption... options)Opens or creates a file, returning a file channel to access the file. | 
| static AsynchronousFileChannel | AsynchronousFileChannel. open(Path file,
    OpenOption... options)Opens or creates a file for reading and/or writing, returning an
 asynchronous file channel to access the file. | 
| Modifier and Type | Method and Description | 
|---|---|
| static AsynchronousFileChannel | AsynchronousFileChannel. open(Path file,
    Set<? extends OpenOption> options,
    ExecutorService executor,
    FileAttribute<?>... attrs)Opens or creates a file for reading and/or writing, returning an
 asynchronous file channel to access the file. | 
| static FileChannel | FileChannel. open(Path path,
    Set<? extends OpenOption> options,
    FileAttribute<?>... attrs)Opens or creates a file, returning a file channel to access the file. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | LinkOptionDefines the options as to how symbolic links are handled. | 
| class  | StandardOpenOptionDefines the standard open options. | 
| Modifier and Type | Method and Description | 
|---|---|
| static BufferedWriter | Files. newBufferedWriter(Path path,
                 Charset cs,
                 OpenOption... options)Opens or creates a file for writing, returning a  BufferedWriterthat may be used to write text to the file in an efficient manner. | 
| static BufferedWriter | Files. newBufferedWriter(Path path,
                 OpenOption... options)Opens or creates a file for writing, returning a  BufferedWriterto write text to the file in an efficient manner. | 
| static SeekableByteChannel | Files. newByteChannel(Path path,
              OpenOption... options)Opens or creates a file, returning a seekable byte channel to access the
 file. | 
| static InputStream | Files. newInputStream(Path path,
              OpenOption... options)Opens a file, returning an input stream to read from the file. | 
| static OutputStream | Files. newOutputStream(Path path,
               OpenOption... options)Opens or creates a file, returning an output stream that may be used to
 write bytes to the file. | 
| static Path | Files. write(Path path,
     byte[] bytes,
     OpenOption... options)Writes bytes to a file. | 
| static Path | Files. write(Path path,
     Iterable<? extends CharSequence> lines,
     Charset cs,
     OpenOption... options)Write lines of text to a file. | 
| static Path | Files. write(Path path,
     Iterable<? extends CharSequence> lines,
     OpenOption... options)Write lines of text to a file. | 
| Modifier and Type | Method and Description | 
|---|---|
| static SeekableByteChannel | Files. newByteChannel(Path path,
              Set<? extends OpenOption> options,
              FileAttribute<?>... attrs)Opens or creates a file, returning a seekable byte channel to access the
 file. | 
| SeekableByteChannel | SecureDirectoryStream. newByteChannel(T path,
              Set<? extends OpenOption> options,
              FileAttribute<?>... attrs)Opens or creates a file in this directory, returning a seekable byte
 channel to access the file. | 
| Modifier and Type | Method and Description | 
|---|---|
| InputStream | FileSystemProvider. newInputStream(Path path,
              OpenOption... options)Opens a file, returning an input stream to read from the file. | 
| OutputStream | FileSystemProvider. newOutputStream(Path path,
               OpenOption... options)Opens or creates a file, returning an output stream that may be used to
 write bytes to the file. | 
| Modifier and Type | Method and Description | 
|---|---|
| AsynchronousFileChannel | FileSystemProvider. newAsynchronousFileChannel(Path path,
                          Set<? extends OpenOption> options,
                          ExecutorService executor,
                          FileAttribute<?>... attrs)Opens or creates a file for reading and/or writing, returning an
 asynchronous file channel to access the file. | 
| abstract SeekableByteChannel | FileSystemProvider. newByteChannel(Path path,
              Set<? extends OpenOption> options,
              FileAttribute<?>... attrs)Opens or creates a file, returning a seekable byte channel to access the
 file. | 
| FileChannel | FileSystemProvider. newFileChannel(Path path,
              Set<? extends OpenOption> options,
              FileAttribute<?>... attrs)Opens or creates a file for reading and/or writing, returning a file
 channel to access the file. | 
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