java.io
public interface
public interface
java.io.DataInput
| java.io.DataInput |
DataInput is an interface which declares methods for reading in typed data from a Stream. Typically, this stream has been written by a class which implements DataOutput. Types that can be read include byte, 16-bit short, 32-bit int, 32-bit float, 64-bit long, 64-bit double, byte strings, and UTF Strings.
Known Indirect Subclasses
See Also
Summary
Public Methods
| boolean | readBoolean() | ||||
| Reads a boolean from this stream. | |||||
| byte | readByte() | ||||
| Reads an 8-bit byte value from this stream. | |||||
| char | readChar() | ||||
| Reads a 16-bit character value from this stream. | |||||
| double | readDouble() | ||||
Reads a 64-bit double value from this stream. |
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| float | readFloat() | ||||
Reads a 32-bit float value from this stream. |
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| void | readFully(byte[] buffer, int offset, int count) | ||||
Read bytes from this stream and stores them in byte array
buffer starting at offset offset. |
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| void | readFully(byte[] buffer) | ||||
Reads bytes from this stream into the byte array buffer. |
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| int | readInt() | ||||
| Reads a 32-bit integer value from this stream. | |||||
| String | readLine() | ||||
Answers a String representing the next line of text
available in this BufferedReader. |
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| long | readLong() | ||||
Reads a 64-bit long value from this stream. |
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| short | readShort() | ||||
Reads a 16-bit short value from this stream. |
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| String | readUTF() | ||||
| Reads a UTF format String from this Stream. | |||||
| int | readUnsignedByte() | ||||
Reads an unsigned 8-bit byte value from this stream and
returns it as an int. |
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| int | readUnsignedShort() | ||||
Reads a 16-bit unsigned short value from this stream and
returns it as an int. |
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| int | skipBytes(int count) | ||||
Skips count number of bytes in this stream. |
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Details
Public Methods
public boolean readBoolean()
Reads a boolean from this stream.
Returns
- the next boolean value from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public byte readByte()
Reads an 8-bit byte value from this stream.
Returns
- the next byte value from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public char readChar()
Reads a 16-bit character value from this stream.
Returns
- the next
charvalue from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public double readDouble()
Reads a 64-bit
double value from this stream.
Returns
- the next
doublevalue from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public float readFloat()
Reads a 32-bit
float value from this stream.
Returns
- the next
floatvalue from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public void readFully(byte[] buffer, int offset, int count)
Read bytes from this stream and stores them in byte array
buffer starting at offset offset. This
method blocks until count number of bytes have been read.
Parameters
| buffer | the byte array in which to store the read bytes. |
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| offset | the offset in buffer to store the read bytes. |
| count | the maximum number of bytes to store in buffer. |
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public void readFully(byte[] buffer)
Reads bytes from this stream into the byte array
buffer.
This method will block until buffer.length number of bytes
have been read.
Parameters
| buffer | the buffer to read bytes into |
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Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public int readInt()
Reads a 32-bit integer value from this stream.
Returns
- the next
intvalue from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public String readLine()
Answers a
String representing the next line of text
available in this BufferedReader. A line is represented by 0 or more
characters followed by '\n', '\r',
"\n\r" or end of stream. The String does
not include the newline sequence.
Returns
- the contents of the line or null if no characters were read before end of stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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public long readLong()
Reads a 64-bit
long value from this stream.
Returns
- the next
longvalue from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public short readShort()
Reads a 16-bit
short value from this stream.
Returns
- the next
shortvalue from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public String readUTF()
Reads a UTF format String from this Stream.
Returns
- the next UTF String from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public int readUnsignedByte()
Reads an unsigned 8-bit
byte value from this stream and
returns it as an int.
Returns
- the next unsigned byte value from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public int readUnsignedShort()
Reads a 16-bit unsigned
short value from this stream and
returns it as an int.
Returns
- the next unsigned
shortvalue from the source stream.
Throws
| IOException | If a problem occurs reading from this stream. |
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See Also
public int skipBytes(int count)
Skips
count number of bytes in this stream. Subsequent
read()'s will not return these bytes unless
reset() is used.
Parameters
| count | the number of bytes to skip. |
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Returns
- the number of bytes actually skipped.
Throws
| IOException | If a problem occurs reading from this stream. |
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