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javax.imageio.stream
Interface ImageInputStream

All Superinterfaces:
DataInput sample code for java.io.DataInput definition code for java.io.DataInput
All Known Subinterfaces:
ImageOutputStream sample code for javax.imageio.stream.ImageOutputStream definition code for javax.imageio.stream.ImageOutputStream
All Known Implementing Classes:
FileCacheImageInputStream sample code for javax.imageio.stream.FileCacheImageInputStream definition code for javax.imageio.stream.FileCacheImageInputStream , FileCacheImageOutputStream sample code for javax.imageio.stream.FileCacheImageOutputStream definition code for javax.imageio.stream.FileCacheImageOutputStream , FileImageInputStream sample code for javax.imageio.stream.FileImageInputStream definition code for javax.imageio.stream.FileImageInputStream , FileImageOutputStream sample code for javax.imageio.stream.FileImageOutputStream definition code for javax.imageio.stream.FileImageOutputStream , ImageInputStreamImpl sample code for javax.imageio.stream.ImageInputStreamImpl definition code for javax.imageio.stream.ImageInputStreamImpl , ImageOutputStreamImpl sample code for javax.imageio.stream.ImageOutputStreamImpl definition code for javax.imageio.stream.ImageOutputStreamImpl , MemoryCacheImageInputStream sample code for javax.imageio.stream.MemoryCacheImageInputStream definition code for javax.imageio.stream.MemoryCacheImageInputStream , MemoryCacheImageOutputStream sample code for javax.imageio.stream.MemoryCacheImageOutputStream definition code for javax.imageio.stream.MemoryCacheImageOutputStream 
public interface ImageInputStream
extends DataInput sample code for java.io.DataInput definition code for java.io.DataInput

A seekable input stream interface for use by ImageReaders. Various input sources, such as InputStreams and Files, as well as future fast I/O sources may be "wrapped" by a suitable implementation of this interface for use by the Image I/O API.

See Also:
ImageInputStreamImpl sample code for javax.imageio.stream.ImageInputStreamImpl definition code for javax.imageio.stream.ImageInputStreamImpl , FileImageInputStream sample code for javax.imageio.stream.FileImageInputStream definition code for javax.imageio.stream.FileImageInputStream , FileCacheImageInputStream sample code for javax.imageio.stream.FileCacheImageInputStream definition code for javax.imageio.stream.FileCacheImageInputStream , MemoryCacheImageInputStream sample code for javax.imageio.stream.MemoryCacheImageInputStream definition code for javax.imageio.stream.MemoryCacheImageInputStream

Method Summary
 void close sample code for javax.imageio.stream.ImageInputStream.close() definition code for javax.imageio.stream.ImageInputStream.close() ()
          Closes the stream.
 void flush sample code for javax.imageio.stream.ImageInputStream.flush() definition code for javax.imageio.stream.ImageInputStream.flush() ()
          Discards the initial position of the stream prior to the current stream position.
 void flushBefore sample code for javax.imageio.stream.ImageInputStream.flushBefore(long) definition code for javax.imageio.stream.ImageInputStream.flushBefore(long) (long pos)
          Discards the initial portion of the stream prior to the indicated postion.
 int getBitOffset sample code for javax.imageio.stream.ImageInputStream.getBitOffset() definition code for javax.imageio.stream.ImageInputStream.getBitOffset() ()
          Returns the current bit offset, as an integer between 0 and 7, inclusive.
 ByteOrder sample code for java.nio.ByteOrder definition code for java.nio.ByteOrder getByteOrder sample code for javax.imageio.stream.ImageInputStream.getByteOrder() definition code for javax.imageio.stream.ImageInputStream.getByteOrder() ()
          Returns the byte order with which data values will be read from this stream as an instance of the java.nio.ByteOrder enumeration.
 long getFlushedPosition sample code for javax.imageio.stream.ImageInputStream.getFlushedPosition() definition code for javax.imageio.stream.ImageInputStream.getFlushedPosition() ()
          Returns the earliest position in the stream to which seeking may be performed.
 long getStreamPosition sample code for javax.imageio.stream.ImageInputStream.getStreamPosition() definition code for javax.imageio.stream.ImageInputStream.getStreamPosition() ()
          Returns the current byte position of the stream.
 boolean isCached sample code for javax.imageio.stream.ImageInputStream.isCached() definition code for javax.imageio.stream.ImageInputStream.isCached() ()
          Returns true if this ImageInputStream caches data itself in order to allow seeking backwards.
 boolean isCachedFile sample code for javax.imageio.stream.ImageInputStream.isCachedFile() definition code for javax.imageio.stream.ImageInputStream.isCachedFile() ()
          Returns true if this ImageInputStream caches data itself in order to allow seeking backwards, and the cache is kept in a temporary file.
 boolean isCachedMemory sample code for javax.imageio.stream.ImageInputStream.isCachedMemory() definition code for javax.imageio.stream.ImageInputStream.isCachedMemory() ()
          Returns true if this ImageInputStream caches data itself in order to allow seeking backwards, and the cache is kept in main memory.
 long length sample code for javax.imageio.stream.ImageInputStream.length() definition code for javax.imageio.stream.ImageInputStream.length() ()
          Returns the total length of the stream, if known.
 void mark sample code for javax.imageio.stream.ImageInputStream.mark() definition code for javax.imageio.stream.ImageInputStream.mark() ()
          Marks a position in the stream to be returned to by a subsequent call to reset.
 int read sample code for javax.imageio.stream.ImageInputStream.read() definition code for javax.imageio.stream.ImageInputStream.read() ()
          Reads a single byte from the stream and returns it as an integer between 0 and 255.
 int read sample code for javax.imageio.stream.ImageInputStream.read(byte[]) definition code for javax.imageio.stream.ImageInputStream.read(byte[]) (byte[] b)
          Reads up to b.length bytes from the stream, and stores them into b starting at index 0.
 int read sample code for javax.imageio.stream.ImageInputStream.read(byte[], int, int) definition code for javax.imageio.stream.ImageInputStream.read(byte[], int, int) (byte[] b, int off, int len)
          Reads up to len bytes from the stream, and stores them into b starting at index off.
 int readBit sample code for javax.imageio.stream.ImageInputStream.readBit() definition code for javax.imageio.stream.ImageInputStream.readBit() ()
          Reads a single bit from the stream and returns it as an int with the value 0 or 1.
 long readBits sample code for javax.imageio.stream.ImageInputStream.readBits(int) definition code for javax.imageio.stream.ImageInputStream.readBits(int) (int numBits)
          Reads a bitstring from the stream and returns it as a long, with the first bit read becoming the most significant bit of the output.
 boolean readBoolean sample code for javax.imageio.stream.ImageInputStream.readBoolean() definition code for javax.imageio.stream.ImageInputStream.readBoolean() ()
          Reads a byte from the stream and returns a boolean value of true if it is nonzero, false if it is zero.
 byte readByte sample code for javax.imageio.stream.ImageInputStream.readByte() definition code for javax.imageio.stream.ImageInputStream.readByte() ()
          Reads a byte from the stream and returns it as a byte value.
 void readBytes sample code for javax.imageio.stream.ImageInputStream.readBytes(javax.imageio.stream.IIOByteBuffer, int) definition code for javax.imageio.stream.ImageInputStream.readBytes(javax.imageio.stream.IIOByteBuffer, int) (IIOByteBuffer sample code for javax.imageio.stream.IIOByteBuffer definition code for javax.imageio.stream.IIOByteBuffer  buf, int len)
          Reads up to len bytes from the stream, and modifies the supplied IIOByteBuffer to indicate the byte array, offset, and length where the data may be found.
 char readChar sample code for javax.imageio.stream.ImageInputStream.readChar() definition code for javax.imageio.stream.ImageInputStream.readChar() ()
          Equivalent to readUnsignedShort, except that the result is returned using the char datatype.
 double readDouble sample code for javax.imageio.stream.ImageInputStream.readDouble() definition code for javax.imageio.stream.ImageInputStream.readDouble() ()
          Reads 8 bytes from the stream, and (conceptually) concatenates them according to the current byte order and returns the result as a double.
 float readFloat sample code for javax.imageio.stream.ImageInputStream.readFloat() definition code for javax.imageio.stream.ImageInputStream.readFloat() ()
          Reads 4 bytes from the stream, and (conceptually) concatenates them according to the current byte order and returns the result as a float.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(byte[]) definition code for javax.imageio.stream.ImageInputStream.readFully(byte[]) (byte[] b)
          Reads b.length bytes from the stream, and stores them into b starting at index 0.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(byte[], int, int) definition code for javax.imageio.stream.ImageInputStream.readFully(byte[], int, int) (byte[] b, int off, int len)
          Reads len bytes from the stream, and stores them into b starting at index off.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(char[], int, int) definition code for javax.imageio.stream.ImageInputStream.readFully(char[], int, int) (char[] c, int off, int len)
          Reads len chars (unsigned 16-bit integers) from the stream according to the current byte order, and stores them into c starting at index off.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(double[], int, int) definition code for javax.imageio.stream.ImageInputStream.readFully(double[], int, int) (double[] d, int off, int len)
          Reads len doubles (64-bit IEEE double-precision floats) from the stream according to the current byte order, and stores them into d starting at index off.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(float[], int, int) definition code for javax.imageio.stream.ImageInputStream.readFully(float[], int, int) (float[] f, int off, int len)
          Reads len floats (32-bit IEEE single-precision floats) from the stream according to the current byte order, and stores them into f starting at index off.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(int[], int, int) definition code for javax.imageio.stream.ImageInputStream.readFully(int[], int, int) (int[] i, int off, int len)
          Reads len ints (signed 32-bit integers) from the stream according to the current byte order, and stores them into i starting at index off.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(long[], int, int) definition code for javax.imageio.stream.ImageInputStream.readFully(long[], int, int) (long[] l, int off, int len)
          Reads len longs (signed 64-bit integers) from the stream according to the current byte order, and stores them into l starting at index off.
 void readFully sample code for javax.imageio.stream.ImageInputStream.readFully(short[], int, int) definition code for javax.imageio.stream.ImageInputStream.readFully(short[], int, int) (short[] s, int off, int len)
          Reads len shorts (signed 16-bit integers) from the stream according to the current byte order, and stores them into s starting at index off.
 int readInt sample code for javax.imageio.stream.ImageInputStream.readInt() definition code for javax.imageio.stream.ImageInputStream.readInt() ()
          Reads 4 bytes from the stream, and (conceptually) concatenates them according to the current byte order and returns the result as an int.
 String sample code for java.lang.String definition code for java.lang.String readLine sample code for javax.imageio.stream.ImageInputStream.readLine() definition code for javax.imageio.stream.ImageInputStream.readLine() ()
          Reads the next line of text from the input stream.
 long readLong sample code for javax.imageio.stream.ImageInputStream.readLong() definition code for javax.imageio.stream.ImageInputStream.readLong() ()
          Reads 8 bytes from the stream, and (conceptually) concatenates them according to the current byte order and returns the result as a long.
 short readShort sample code for javax.imageio.stream.ImageInputStream.readShort() definition code for javax.imageio.stream.ImageInputStream.readShort() ()
          Reads two bytes from the stream, and (conceptually) concatenates them according to the current byte order, and returns the result as a short value.
 int readUnsignedByte sample code for javax.imageio.stream.ImageInputStream.readUnsignedByte() definition code for javax.imageio.stream.ImageInputStream.readUnsignedByte() ()
          Reads a byte from the stream, and (conceptually) converts it to an int, masks it with 0xff in order to strip off any sign-extension bits, and returns it as a byte value.
 long readUnsignedInt sample code for javax.imageio.stream.ImageInputStream.readUnsignedInt() definition code for javax.imageio.stream.ImageInputStream.readUnsignedInt() ()
          Reads 4 bytes from the stream, and (conceptually) concatenates them according to the current byte order, converts the result to a long, masks it with 0xffffffffL in order to strip off any sign-extension bits, and returns the result as an unsigned long value.
 int readUnsignedShort sample code for javax.imageio.stream.ImageInputStream.readUnsignedShort() definition code for javax.imageio.stream.ImageInputStream.readUnsignedShort() ()
          Reads two bytes from the stream, and (conceptually) concatenates them according to the current byte order, converts the resulting value to an int, masks it with 0xffff in order to strip off any sign-extension buts, and returns the result as an unsigned int value.
 String sample code for java.lang.String definition code for java.lang.String readUTF sample code for javax.imageio.stream.ImageInputStream.readUTF() definition code for javax.imageio.stream.ImageInputStream.readUTF() ()
          Reads in a string that has been encoded using a modified UTF-8 format.
 void reset sample code for javax.imageio.stream.ImageInputStream.reset() definition code for javax.imageio.stream.ImageInputStream.reset() ()
          Returns the file pointer to its previous position, including the bit offset, at the time of the most recent unmatched call to mark.
 void seek sample code for javax.imageio.stream.ImageInputStream.seek(long) definition code for javax.imageio.stream.ImageInputStream.seek(long) (long pos)
          Sets the current stream position to the desired location.
 void setBitOffset sample code for javax.imageio.stream.ImageInputStream.setBitOffset(int) definition code for javax.imageio.stream.ImageInputStream.setBitOffset(int) (int bitOffset)
          Sets the bit offset to an integer between 0 and 7, inclusive.
 void setByteOrder sample code for javax.imageio.stream.ImageInputStream.setByteOrder(java.nio.ByteOrder) definition code for javax.imageio.stream.ImageInputStream.setByteOrder(java.nio.ByteOrder) (ByteOrder sample code for java.nio.ByteOrder definition code for java.nio.ByteOrder  byteOrder)
          Sets the desired byte order for future reads of data values from this stream.
 int skipBytes sample code for javax.imageio.stream.ImageInputStream.skipBytes(int) definition code for javax.imageio.stream.ImageInputStream.skipBytes(int) (int n)
          Moves the stream position forward by a given number of bytes.
 long skipBytes sample code for javax.imageio.stream.ImageInputStream.skipBytes(long) definition code for javax.imageio.stream.ImageInputStream.skipBytes(long) (long n)
          Moves the stream position forward by a given number of bytes.
 

Method Detail

setByteOrder sample code for javax.imageio.stream.ImageInputStream.setByteOrder(java.nio.ByteOrder) definition code for javax.imageio.stream.ImageInputStream.setByteOrder(java.nio.ByteOrder) 

void setByteOrder(ByteOrder sample code for java.nio.ByteOrder definition code for java.nio.ByteOrder  byteOrder)
Sets the desired byte order for future reads of data values from this stream. For example, the sequence of bytes '0x01 0x02 0x03 0x04' if read as a 4-byte integer would have the value '0x01020304' using network byte order and the value '0x04030201' under the reverse byte order.

The enumeration class java.nio.ByteOrder is used to specify the byte order. A value of ByteOrder.BIG_ENDIAN specifies so-called big-endian or network byte order, in which the high-order byte comes first. Motorola and Sparc processors store data in this format, while Intel processors store data in the reverse ByteOrder.LITTLE_ENDIAN order.

The byte order has no effect on the results returned from the readBits method (or the value written by ImageOutputStream.writeBits).

Parameters:
byteOrder - one of ByteOrder.BIG_ENDIAN or java.nio.ByteOrder.LITTLE_ENDIAN, indicating whether network byte order or its reverse will be used for future reads.
See Also:
ByteOrder sample code for java.nio.ByteOrder definition code for java.nio.ByteOrder , getByteOrder() sample code for javax.imageio.stream.ImageInputStream.getByteOrder() definition code for javax.imageio.stream.ImageInputStream.getByteOrder() , readBits(int) sample code for javax.imageio.stream.ImageInputStream.readBits(int) definition code for javax.imageio.stream.ImageInputStream.readBits(int)

getByteOrder sample code for javax.imageio.stream.ImageInputStream.getByteOrder() definition code for javax.imageio.stream.ImageInputStream.getByteOrder() 

ByteOrder sample code for java.nio.ByteOrder definition code for java.nio.ByteOrder  getByteOrder()
Returns the byte order with which data values will be read from this stream as an instance of the java.nio.ByteOrder enumeration.

Returns:
one of ByteOrder.BIG_ENDIAN or ByteOrder.LITTLE_ENDIAN, indicating which byte order is being used.
See Also:
ByteOrder sample code for java.nio.ByteOrder definition code for java.nio.ByteOrder , setByteOrder(java.nio.ByteOrder) sample code for javax.imageio.stream.ImageInputStream.setByteOrder(java.nio.ByteOrder) definition code for javax.imageio.stream.ImageInputStream.setByteOrder(java.nio.ByteOrder)

read sample code for javax.imageio.stream.ImageInputStream.read() definition code for javax.imageio.stream.ImageInputStream.read() 

int read()
         throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads a single byte from the stream and returns it as an integer between 0 and 255. If the end of the stream is reached, -1 is returned.

The bit offset within the stream is reset to zero before the read occurs.

Returns:
a byte value from the stream, as an int, or -1 to indicate EOF.
Throws:
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.

read sample code for javax.imageio.stream.ImageInputStream.read(byte[]) definition code for javax.imageio.stream.ImageInputStream.read(byte[]) 

int read(byte[] b)
         throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads up to b.length bytes from the stream, and stores them into b starting at index 0. The number of bytes read is returned. If no bytes can be read because the end of the stream has been reached, -1 is returned.

The bit offset within the stream is reset to zero before the read occurs.

Parameters:
b - an array of bytes to be written to.
Returns:
the number of bytes actually read, or -1 to indicate EOF.
Throws:
NullPointerException sample code for java.lang.NullPointerException definition code for java.lang.NullPointerException - if b is null.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.

read sample code for javax.imageio.stream.ImageInputStream.read(byte[], int, int) definition code for javax.imageio.stream.ImageInputStream.read(byte[], int, int) 

int read(byte[] b,
         int off,
         int len)
         throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads up to len bytes from the stream, and stores them into b starting at index off. The number of bytes read is returned. If no bytes can be read because the end of the stream has been reached, -1 is returned.

The bit offset within the stream is reset to zero before the read occurs.

Parameters:
b - an array of bytes to be written to.
off - the starting position within b to write to.
len - the maximum number of bytes to read.
Returns:
the number of bytes actually read, or -1 to indicate EOF.
Throws:
NullPointerException sample code for java.lang.NullPointerException definition code for java.lang.NullPointerException - if b is null.
IndexOutOfBoundsException sample code for java.lang.IndexOutOfBoundsException definition code for java.lang.IndexOutOfBoundsException - if off is negative, len is negative, or off + len is greater than b.length.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.

readBytes sample code for javax.imageio.stream.ImageInputStream.readBytes(javax.imageio.stream.IIOByteBuffer, int) definition code for javax.imageio.stream.ImageInputStream.readBytes(javax.imageio.stream.IIOByteBuffer, int) 

void readBytes(IIOByteBuffer sample code for javax.imageio.stream.IIOByteBuffer definition code for javax.imageio.stream.IIOByteBuffer  buf,
               int len)
               throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads up to len bytes from the stream, and modifies the supplied IIOByteBuffer to indicate the byte array, offset, and length where the data may be found. The caller should not attempt to modify the data found in the IIOByteBuffer.

The bit offset within the stream is reset to zero before the read occurs.

Parameters:
buf - an IIOByteBuffer object to be modified.
len - the maximum number of bytes to read.
Throws:
IndexOutOfBoundsException sample code for java.lang.IndexOutOfBoundsException definition code for java.lang.IndexOutOfBoundsException - if len is negative.
NullPointerException sample code for java.lang.NullPointerException definition code for java.lang.NullPointerException - if buf is null.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.

readBoolean sample code for javax.imageio.stream.ImageInputStream.readBoolean() definition code for javax.imageio.stream.ImageInputStream.readBoolean() 

boolean readBoolean()
                    throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads a byte from the stream and returns a boolean value of true if it is nonzero, false if it is zero.

The bit offset within the stream is reset to zero before the read occurs.

Specified by:
readBoolean sample code for java.io.DataInput.readBoolean() definition code for java.io.DataInput.readBoolean() in interface DataInput sample code for java.io.DataInput definition code for java.io.DataInput
Returns:
a boolean value from the stream.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the end of the stream is reached.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.

readByte sample code for javax.imageio.stream.ImageInputStream.readByte() definition code for javax.imageio.stream.ImageInputStream.readByte() 

byte readByte()
              throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads a byte from the stream and returns it as a byte value. Byte values between 0x00 and 0x7f represent integer values between 0 and 127. Values between 0x80 and 0xff represent negative values from -128 to /1.

The bit offset within the stream is reset to zero before the read occurs.

Specified by:
readByte sample code for java.io.DataInput.readByte() definition code for java.io.DataInput.readByte() in interface DataInput sample code for java.io.DataInput definition code for java.io.DataInput
Returns:
a signed byte value from the stream.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the end of the stream is reached.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.

readUnsignedByte sample code for javax.imageio.stream.ImageInputStream.readUnsignedByte() definition code for javax.imageio.stream.ImageInputStream.readUnsignedByte() 

int readUnsignedByte()
                     throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads a byte from the stream, and (conceptually) converts it to an int, masks it with 0xff in order to strip off any sign-extension bits, and returns it as a byte value.

Thus, byte values between 0x00 and 0x7f are simply returned as integer values between 0 and 127. Values between 0x80 and 0xff, which normally represent negative bytevalues, will be mapped into positive integers between 128 and 255.

The bit offset within the stream is reset to zero before the read occurs.

Specified by:
readUnsignedByte sample code for java.io.DataInput.readUnsignedByte() definition code for java.io.DataInput.readUnsignedByte() in interface DataInput sample code for java.io.DataInput definition code for java.io.DataInput
Returns:
an unsigned byte value from the stream.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the end of the stream is reached.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.

readShort sample code for javax.imageio.stream.ImageInputStream.readShort() definition code for javax.imageio.stream.ImageInputStream.readShort() 

short readShort()
                throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads two bytes from the stream, and (conceptually) concatenates them according to the current byte order, and returns the result as a short value.

The bit offset within the stream is reset to zero before the read occurs.

Specified by:
readShort sample code for java.io.DataInput.readShort() definition code for java.io.DataInput.readShort() in interface DataInput sample code for java.io.DataInput definition code for java.io.DataInput
Returns:
a signed short value from the stream.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the stream reaches the end before reading all the bytes.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.
See Also:
getByteOrder() sample code for javax.imageio.stream.ImageInputStream.getByteOrder() definition code for javax.imageio.stream.ImageInputStream.getByteOrder()

readUnsignedShort sample code for javax.imageio.stream.ImageInputStream.readUnsignedShort() definition code for javax.imageio.stream.ImageInputStream.readUnsignedShort() 

int readUnsignedShort()
                      throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads two bytes from the stream, and (conceptually) concatenates them according to the current byte order, converts the resulting value to an int, masks it with 0xffff in order to strip off any sign-extension buts, and returns the result as an unsigned int value.

The bit offset within the stream is reset to zero before the read occurs.

Specified by:
readUnsignedShort sample code for java.io.DataInput.readUnsignedShort() definition code for java.io.DataInput.readUnsignedShort() in interface DataInput sample code for java.io.DataInput definition code for java.io.DataInput
Returns:
an unsigned short value from the stream, as an int.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the stream reaches the end before reading all the bytes.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.
See Also:
getByteOrder() sample code for javax.imageio.stream.ImageInputStream.getByteOrder() definition code for javax.imageio.stream.ImageInputStream.getByteOrder()

readChar sample code for javax.imageio.stream.ImageInputStream.readChar() definition code for javax.imageio.stream.ImageInputStream.readChar() 

char readChar()
              throws IOException sample code for java.io.IOException definition code for java.io.IOException
Equivalent to readUnsignedShort, except that the result is returned using the char datatype.

The bit offset within the stream is reset to zero before the read occurs.

Specified by:
readChar sample code for java.io.DataInput.readChar() definition code for java.io.DataInput.readChar() in interface DataInput sample code for java.io.DataInput definition code for java.io.DataInput
Returns:
an unsigned char value from the stream.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the stream reaches the end before reading all the bytes.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.
See Also:
readUnsignedShort() sample code for javax.imageio.stream.ImageInputStream.readUnsignedShort() definition code for javax.imageio.stream.ImageInputStream.readUnsignedShort()

readInt sample code for javax.imageio.stream.ImageInputStream.readInt() definition code for javax.imageio.stream.ImageInputStream.readInt() 

int readInt()
            throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads 4 bytes from the stream, and (conceptually) concatenates them according to the current byte order and returns the result as an int.

The bit offset within the stream is ignored and treated as though it were zero.

Specified by:
readInt sample code for java.io.DataInput.readInt() definition code for java.io.DataInput.readInt() in interface DataInput sample code for java.io.DataInput definition code for java.io.DataInput
Returns:
a signed int value from the stream.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the stream reaches the end before reading all the bytes.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.
See Also:
getByteOrder() sample code for javax.imageio.stream.ImageInputStream.getByteOrder() definition code for javax.imageio.stream.ImageInputStream.getByteOrder()

readUnsignedInt sample code for javax.imageio.stream.ImageInputStream.readUnsignedInt() definition code for javax.imageio.stream.ImageInputStream.readUnsignedInt() 

long readUnsignedInt()
                     throws IOException sample code for java.io.IOException definition code for java.io.IOException
Reads 4 bytes from the stream, and (conceptually) concatenates them according to the current byte order, converts the result to a long, masks it with 0xffffffffL in order to strip off any sign-extension bits, and returns the result as an unsigned long value.

The bit offset within the stream is reset to zero before the read occurs.

Returns:
an unsigned int value from the stream, as a long.
Throws:
EOFException sample code for java.io.EOFException definition code for java.io.EOFException - if the stream reaches the end before reading all the bytes.
IOException sample code for java.io.IOException definition code for java.io.IOException - if an I/O error occurs.
See Also:
getByteOrder() sample code for javax.imageio.stream.ImageInputStream.getByteOrder() definition code for javax.imageio.stream.ImageInputStream.getByteOrder()

readLong