| Package | Description | 
|---|---|
| java.io | 
 Provides for system input and output through data streams,
serialization and the file system. 
 | 
| 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.spi | 
 Service-provider classes for the  
java.nio.file package. | 
| Modifier and Type | Method and Description | 
|---|---|
FileChannel | 
RandomAccessFile.getChannel()
Returns the unique  
FileChannel
 object associated with this file. | 
FileChannel | 
FileOutputStream.getChannel()
Returns the unique  
FileChannel
 object associated with this file output stream. | 
FileChannel | 
FileInputStream.getChannel()
Returns the unique  
FileChannel
 object associated with this file input stream. | 
| Modifier and Type | Method and Description | 
|---|---|
FileChannel | 
FileLock.channel()
Returns the file channel upon whose file this lock was acquired. 
 | 
static FileChannel | 
FileChannel.open(Path path,
    OpenOption... options)
Opens or creates a file, returning a 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. 
 | 
abstract FileChannel | 
FileChannel.position(long newPosition)
Sets this channel's file position. 
 | 
abstract FileChannel | 
FileChannel.truncate(long size)
Truncates this channel's file to the given size. 
 | 
| Constructor and Description | 
|---|
FileLock(FileChannel channel,
        long position,
        long size,
        boolean shared)
Initializes a new instance of this class. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
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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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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