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Interface java.io.DataInput

public interface DataInput

See Also:

DataInputStream, DataOutput

readBoolean()

Reads a boolean value from the input stream.

readByte()

Reads a signed 8-bit value from the input stream.

readChar()

Reads a Unicode char value from the input stream.

readDouble()

Reads a double value from the input stream.

readFloat()

Reads a float value from the input stream.

readFully(byte[])

Reads b.length bytes into the byte array.

readFully(byte[], int, int)

Reads b.length bytes into the byte array.

readInt()

Reads an int value from the input stream.

readLine()

Reads the next line of text from the input stream.

readLong()

Reads a long value from the input stream.

readShort()

Reads a 16-bit value from the input stream.

readUnsignedByte()

Reads an unsigned 8-bit value from the input stream.

readUnsignedShort()

Reads an unsigned 16-bit value from the input stream.

readUTF()

Reads in a string that has been encoded using a modified UTF-8 format.

skipBytes(int)

Skips exactly n bytes of input.

    method readFully(b=byte[])  public abstract    Signals IOException

Reads b.length bytes into the byte array. This method blocks until all the bytes are read.

Parameters:

b - the buffer into which the data is read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readFully(b=byte[], -
                     off=int, -
                     len=int)  public abstract    Signals IOException

Reads b.length bytes into the byte array. This method blocks until all the bytes are read.

Parameters:

b - the buffer into which the data is read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method skipBytes(n=int) returns int public abstract    Signals IOException

Skips exactly n bytes of input.

Parameters:

n - the number of bytes to be skipped.

Returns:

the number of bytes skipped, which is always n.

Throws: EOFException

if this stream reaches the end before skipping all the bytes.

Throws: IOException

if an I/O error occurs.

    method readBoolean() returns boolean public abstract    Signals IOException

Reads a boolean value from the input stream.

Returns:

the boolean value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readByte() returns byte public abstract    Signals IOException

Reads a signed 8-bit value from the input stream.

Returns:

the 8-bit value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readUnsignedByte() returns int public abstract    Signals IOException

Reads an unsigned 8-bit value from the input stream.

Returns:

the unsigned 8-bit value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readShort() returns short public abstract    Signals IOException

Reads a 16-bit value from the input stream.

Returns:

the 16-bit value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readUnsignedShort() returns int public abstract    Signals IOException

Reads an unsigned 16-bit value from the input stream.

Returns:

the unsigned 16-bit value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readChar() returns char public abstract    Signals IOException

Reads a Unicode char value from the input stream.

Returns:

the Unicode char read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readInt() returns int public abstract    Signals IOException

Reads an int value from the input stream.

Returns:

the int value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readLong() returns long public abstract    Signals IOException

Reads a long value from the input stream.

Returns:

the long value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readFloat() returns float public abstract    Signals IOException

Reads a float value from the input stream.

Returns:

the float value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readDouble() returns double public abstract    Signals IOException

Reads a double value from the input stream.

Returns:

the double value read.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readLine() returns String public abstract    Signals IOException

Reads the next line of text from the input stream.

Returns:

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

    method readUTF() returns String public abstract    Signals IOException

Reads in a string that has been encoded using a modified UTF-8 format.

For an exact description of this method, see the discussion in Gosling, Joy, and Steele, The Java Language Specification.

Returns:

a Unicode string.

Throws: EOFException

if this stream reaches the end before reading all the bytes.

Throws: IOException

if an I/O error occurs.

Throws: UTFDataFormatException

if the bytes do not represent a valid UTF-8 encoding of a string.

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