All Superinterfaces:

AutoCloseable, DataInput

All Known Implementing Classes:

ObjectInputStream

public interface ObjectInput
extends DataInput, AutoCloseable 

Since:

JDK1.1

See Also:

InputStream, ObjectOutputStream, ObjectInputStream

• Method Summary

  All Methods

  Modifier and Type	Method	Description
  int	available ()	Returns the number of bytes that can be read without blocking.
  void	close ()	Closes the input stream.
  int	read ()	Reads a byte of data.
  int	read (byte[] b)	Reads into an array of bytes.
  int	read (byte[] b, int off, int len)	Reads into an array of bytes.
  Object	readObject ()	Read and return an object.
  long	skip (long n)	Skips n bytes of input.

  • Methods inherited from interface java.io.DataInput

    readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, skipBytes

• Method Detail

  • readObject

    Object readObject()
     throws ClassNotFoundException,
     IOException 

    Read and return an object. The class that implements this interface defines where the object is "read" from.

    Returns:

    the object read from the stream

    Throws:

    ClassNotFoundException - If the class of a serialized object cannot be found.

    IOException - If any of the usual Input/Output related exceptions occur.

  • read

    int read()
     throws IOException 

    Reads a byte of data. This method will block if no input is available.

    Returns:

    the byte read, or -1 if the end of the stream is reached.

    Throws:

    IOException - If an I/O error has occurred.

  • read

    int read(byte[] b)
     throws IOException 

    Reads into an array of bytes. This method will block until some input is available.

    Parameters:

    b - the buffer into which the data is read

    Returns:

    the actual number of bytes read, -1 is returned when the end of the stream is reached.

    Throws:

    IOException - If an I/O error has occurred.

  • read

    int read(byte[] b,
     int off,
     int len)
     throws IOException 

    Reads into an array of bytes. This method will block until some input is available.

    Parameters:

    b - the buffer into which the data is read

    off - the start offset of the data

    len - the maximum number of bytes read

    Returns:

    the actual number of bytes read, -1 is returned when the end of the stream is reached.

    Throws:

    IOException - If an I/O error has occurred.

  • skip

    long skip(long n)
     throws IOException 

    Skips n bytes of input.

    Parameters:

    n - the number of bytes to be skipped

    Returns:

    the actual number of bytes skipped.

    Throws:

    IOException - If an I/O error has occurred.

  • available

    int available()
     throws IOException 

    Returns the number of bytes that can be read without blocking.

    Returns:

    the number of available bytes.

    Throws:

    IOException - If an I/O error has occurred.

  • close

    void close()
     throws IOException 

    Closes the input stream. Must be called to release any resources associated with the stream.

    Specified by:

    close in interface AutoCloseable

    Throws:

    IOException - If an I/O error has occurred.