THE PACKAGE JAVA.IO

java.io.DataInput

22.1

If an exception is thrown from this method, then it may be that some but not

all bytes of

b

 in positions

off

 through

off+len 1

 have been updated with data

from the input stream.

22.1.3

public int skipBytes(int n) throws IOException

The general contract of

skipBytes

 is that it makes an attempt to skip over

n

 bytes

of data from the input stream, discarding the skipped bytes. However, it may skip

over some smaller number of bytes, possibly zero. This may result from any of a

number of conditions; reaching end of file before

n

 bytes have been skipped is

only one possibility. This method never throws an

EOFException

. The actual

number of bytes skipped is returned.

22.1.4

public boolean readBoolean() throws IOException;

The general contract of

readBoolean

 is that it reads one input byte and returns

true

 if that byte is nonzero,

false

 if that byte is zero.

This method is suitable for reading the byte written by the

writeBoolean

method of interface

DataOutput

 ( 22.2.4).

22.1.5

public byte readByte() throws IOException

The general contract of

readByte

 is that it reads and returns one input byte. The

byte is treated as a signed value in the range

 128

 through

127

, inclusive.

This method is suitable for reading the byte written by the

writeByte

 method

of interface

DataOutput

 ( 22.2.5).

22.1.6

public int readUnsignedByte() throws IOException

The general contract of

readUnsignedByte

 is that it reads one input byte, zero 

extends it to type

int

, and returns the result, which is therefore in the range

0

through

255

.

This method is suitable for reading the byte written by the

writeByte

 method

of interface

DataOutput

 ( 22.2.5) if the argument to

writeByte

 was intended to

be a value in the range

0

 through

255

.

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