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## Hierarchy For Package java.io

Package Hierarchies:
  All Packages

## Class Hierarchy

- class java.lang.Object
  - class java.io.File (implements java.lang.Comparable, java.io.Serializable)
  - class java.io.FileDescriptor
  - class java.io.InputStream
    - class java.io.ByteArrayInputStream
    - class java.io.FileInputStream
    - class java.io.FilterInputStream
      - class java.io.BufferedInputStream
      - class java.io.DataInputStream (implements java.io.DataInput)
      - class java.io.LineNumberInputStream
      - class java.io.PushbackInputStream
    - class java.io.ObjectInputStream (implements java.io.ObjectInput, java.io.ObjectStreamConstants)
    - class java.io.PipedInputStream
    - class java.io.SequenceInputStream
    - class java.io.StringBufferInputStream
  - class java.io.ObjectInputStream.GetField
  - class java.io.ObjectOutputStream.PutField
  - class java.io.ObjectStreamClass (implements java.io.Serializable)
  - class java.io.ObjectStreamField (implements java.lang.Comparable)
  - class java.io.OutputStream
    - class java.io.ByteArrayOutputStream
    - class java.io.FileOutputStream
    - class java.io.FilterOutputStream
      - class java.io.BufferedOutputStream
      - class java.io.DataOutputStream (implements java.io.DataOutput)
      - class java.io.PrintStream
    - class java.io.ObjectOutputStream (implements java.io.ObjectOutput, java.io.ObjectStreamConstants)
    - class java.io.PipedOutputStream
  - class java.security.Permission (implements java.security.Guard, java.io.Serializable)
    - class java.security.BasicPermission (implements java.io.Serializable)
      - class java.io.SerializablePermission
    - class java.io.FilePermission (implements java.io.Serializable)
  - class java.io.RandomAccessFile (implements java.io.DataInput, java.io.DataOutput)
  - class java.io.Reader
    - class java.io.BufferedReader
      - class java.io.LineNumberReader
    - class java.io.CharArrayReader
    - class java.io.FilterReader
      - class java.io.PushbackReader
    - class java.io.InputStreamReader
      - class java.io.FileReader
    - class java.io.PipedReader
    - class java.io.StringReader
  - class java.io.StreamTokenizer
  - class java.lang.Throwable (implements java.io.Serializable)
    - class java.lang.Exception
      - class java.io.IOException
        - class java.io.CharConversionException
        - class java.io.EOFException
        - class java.io.FileNotFoundException
        - class java.io.InterruptedIOException
        - class java.io.ObjectStreamException
          - class java.io.InvalidClassException
          - class java.io.InvalidObjectException
          - class java.io.NotActiveException
          - class java.io.NotSerializableException
          - class java.io.OptionalDataException
          - class java.io.StreamCorruptedException
          - class java.io.WriteAbortedException
        - class java.io.SyncFailedException
        - class java.io.UnsupportedEncodingException
        - class java.io.UTFDataFormatException
  - class java.io.Writer
    - class java.io.BufferedWriter
    - class java.io.CharArrayWriter
    - class java.io.FilterWriter
    - class java.io.OutputStreamWriter
      - class java.io.FileWriter
    - class java.io.PipedWriter
    - class java.io.PrintWriter
    - class java.io.StringWriter

## Interface Hierarchy

- interface java.io.DataInput
  - interface java.io.ObjectInput
- interface java.io.DataOutput
  - interface java.io.ObjectOutput
- interface java.io.FileFilter
- interface java.io.FilenameFilter
- interface java.io.ObjectInputValidation
- interface java.io.ObjectStreamConstants
- interface java.io.Serializable
  - interface java.io.Externalizable

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.