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Class java.io.DataInputStream

java.lang.Object
   |
   +----java.io.InputStream
           |
           +----java.io.FilterInputStream
                   |
                   +----java.io.DataInputStream

public class DataInputStream

extends FilterInputStream

See Also:

DataOutputStream

Version:

1.16, 31 Jan 1995

Author:

Arthur van Hoff

DataInputStream(InputStream)

Create a new DataInputStream.

readBoolean()

Reads a boolean.

readByte()

Reads an 8 bit byte.

readBytes(byte[])

Reads bytes, blocking until all bytes are read.

readBytes(byte[], int, int)

Reads bytes, blocking until all bytes are read.

readChar()

Reads a 16 bit char.

readDouble()

Reads a 64 bit double.

readFloat()

Reads a 32 bit float.

readInt()

Reads a 32 bit int.

readLine()

Reads a line terminated by a '\n' or EOF.

readLong()

Reads a 64 bit long.

readShort()

Reads 16 bit short.

readUTF()

Reads a UTF format string.

skipBytes(int)

Skips bytes, block until all bytes are skipped.

  public DataInputStream(InputStream in)

Create a new DataInputStream.

Parameters:

in - the input stream

  public final int readBytes(byte b[])

Reads bytes, blocking until all bytes are read.

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

i/o error occurred

readBytes

  public final int readBytes(byte b[],
                             int off,
                             int len)

Reads bytes, blocking until all bytes are read.

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

i/o error occurred

skipBytes

  public final int skipBytes(int n)

Skips bytes, block until all bytes are skipped.

Parameters:

n - bytes to be skipped

Returns:

actual number of bytes skipped

Throws: IOException

i/o error occurred

readBoolean

  public final boolean readBoolean()

Reads a boolean.

readByte

  public final byte readByte()

Reads an 8 bit byte.

readShort

  public final short readShort()

Reads 16 bit short.

readChar

  public final char readChar()

Reads a 16 bit char.

readInt

  public final int readInt()

Reads a 32 bit int.

readLong

  public final long readLong()

Reads a 64 bit long.

readFloat

  public final float readFloat()

Reads a 32 bit float.

readDouble

  public final double readDouble()

Reads a 64 bit double.

readLine

  public final String readLine()

Reads a line terminated by a '\n' or EOF.

readUTF

  public final String readUTF()

Reads a UTF format string.

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