Flushable (Java SE 11 & JDK 11 )
Keywords: java.io.Flushable interface

Module java.base
Package java.io

## Interface Flushable

- All Known Subinterfaces:
    `JavaFileManager`, `StandardJavaFileManager`
  All Known Implementing Classes:
    `BufferedOutputStream`, `BufferedWriter`, `ByteArrayOutputStream`, `CharArrayWriter`, `CheckedOutputStream`, `CipherOutputStream`, `Console`, `DataOutputStream`, `DeflaterOutputStream`, `DigestOutputStream`, `FileOutputStream`, `FileWriter`, `FilterOutputStream`, `FilterWriter`, `Formatter`, `ForwardingJavaFileManager`, `GZIPOutputStream`, `InflaterOutputStream`, `JarOutputStream`, `LogStream`, `ObjectOutputStream`, `OutputStream`, `OutputStreamWriter`, `PipedOutputStream`, `PipedWriter`, `PrintStream`, `PrintWriter`, `StringWriter`, `Writer`, `ZipOutputStream`

      public interface Flushable

  A `Flushable` is a destination of data that can be flushed. The flush method is invoked to write any buffered output to the underlying stream.
  Since:
    1.5

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `flush()` | Flushes this stream by writing any buffered output to the underlying stream.

- - ### Method Detail

    - #### flush

          void flush()
              throws IOException

      Flushes this stream by writing any buffered output to the underlying stream.
      Throws:
        `IOException` - If an I/O error occurs