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All Superinterfaces:

AutoCloseable, DataInput

All Known Implementing Classes:

ObjectInputStream
```
public interface ObjectInput
extends DataInput, AutoCloseable
```
ObjectInput extends the DataInput interface to include the reading of objects. DataInput includes methods for the input of primitive types, ObjectInput extends that interface to include objects, arrays, and Strings.

Since:

JDK1.1

See Also:
InputStream, ObjectOutputStream, ObjectInputStream

Method Summary

Methods
Modifier and Type	Method and 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.

ObjectInput (Java Platform SE 7 ) Home of API Java Contents Haut

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.

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Interface ObjectInput

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