Uses of Class
java.io.IOException

Packages that use IOException

Package	Description
java.io	Contains Input/Output streams communication classes.
java.lang	Contains core language classes.

Uses of IOException in java.io

Subclasses of IOException in java.io

Modifier and Type	Class and Description
class	EOFException Signals that an end of file or end of stream has been reached unexpectedly during input.
class	InterruptedIOException Signals that an I/O operation has been interrupted.
class	UnsupportedEncodingException The Character Encoding is not supported.
class	UTFDataFormatException Signals that a malformed string in modified UTF-8 format has been read in a data input stream or by any class that implements the data input interface.

Methods in java.io that throw IOException

Modifier and Type	Method and Description
Writer	Writer.append(char c) Appends the specified character to this writer.
Writer	Writer.append(CharSequence csq) Appends the specified character sequence to this writer.
Writer	Writer.append(CharSequence csq, int start, int end) Appends a subsequence of the specified character sequence to this writer.
int	InputStream.available() Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.
int	FilterInputStream.available() Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next caller of a method for this input stream.
abstract void	Reader.close() Closes the stream and releases any system resources associated with it.
void	ByteArrayInputStream.close() Closing a ByteArrayInputStream has no effect.
void	InputStreamReader.close() Close the stream.
void	Closeable.close() Closes this stream and releases any system resources associated with it.
void	InputStream.close() Closes this input stream and releases any system resources associated with the stream.
void	FilterInputStream.close() Closes this input stream and releases any system resources associated with the stream.
void	FilterOutputStream.close() Closes this output stream and releases any system resources associated with the stream.
void	OutputStreamWriter.close() Close the stream.
void	ByteArrayOutputStream.close() Closing a ByteArrayOutputStream has no effect.
void	OutputStream.close() Closes this output stream and releases any system resources associated with this stream.
abstract void	Writer.close() Closes the stream, flushing it first.
void	DataOutputStream.flush() Flushes this data output stream.
void	Flushable.flush() Flushes this stream by writing any buffered output to the underlying stream.
void	FilterOutputStream.flush() Flushes this output stream and forces any buffered output bytes to be written out to the stream.
void	OutputStreamWriter.flush() Flushes the stream.
void	OutputStream.flush() Flushes this output stream and forces any buffered output bytes to be written out.
abstract void	Writer.flush() Flushes the stream.
void	Reader.mark(int readAheadLimit) Marks the present position in the stream.
int	Reader.read() Reads a single character.
int	InputStreamReader.read() Reads a single character.
abstract int	InputStream.read() Reads the next byte of data from the input stream.
int	FilterInputStream.read() Reads the next byte of data from this input stream.
int	InputStream.read(byte[] b) Reads some number of bytes from the input stream and stores them into the buffer array b.
int	FilterInputStream.read(byte[] b) Reads up to byte.length bytes of data from this input stream into an array of bytes.
int	DataInputStream.read(byte[] b) Reads some number of bytes from the contained input stream and stores them into the buffer array b.
int	InputStream.read(byte[] b, int off, int len) Reads up to len bytes of data from the input stream into an array of bytes.
int	FilterInputStream.read(byte[] b, int off, int len) Reads up to len bytes of data from this input stream into an array of bytes.
int	DataInputStream.read(byte[] b, int off, int len) Reads up to len bytes of data from the contained input stream into an array of bytes.
int	Reader.read(char[] cbuf) Reads characters into an array.
abstract int	Reader.read(char[] cbuf, int off, int len) Reads characters into a portion of an array.
int	InputStreamReader.read(char[] cbuf, int offset, int length) Reads characters into a portion of an array.
boolean	DataInput.readBoolean() Reads one input byte and returns true if that byte is nonzero, false if that byte is zero.
boolean	DataInputStream.readBoolean() See the general contract of the readBoolean method of DataInput.
byte	DataInput.readByte() Reads and returns one input byte.
byte	DataInputStream.readByte() See the general contract of the readByte method of DataInput.
char	DataInput.readChar() Reads two input bytes and returns a char value.
char	DataInputStream.readChar() See the general contract of the readChar method of DataInput.
double	DataInput.readDouble() Reads eight input bytes and returns a double value.
double	DataInputStream.readDouble() See the general contract of the readDouble method of DataInput.
float	DataInput.readFloat() Reads four input bytes and returns a float value.
float	DataInputStream.readFloat() See the general contract of the readFloat method of DataInput.
void	DataInput.readFully(byte[] b) Reads some bytes from an input stream and stores them into the buffer array b.
void	DataInputStream.readFully(byte[] b) See the general contract of the readFully method of DataInput.
void	DataInput.readFully(byte[] b, int off, int len) Reads len bytes from an input stream.
void	DataInputStream.readFully(byte[] b, int off, int len) See the general contract of the readFully method of DataInput.
int	DataInput.readInt() Reads four input bytes and returns an int value.
int	DataInputStream.readInt() See the general contract of the readInt method of DataInput.
long	DataInput.readLong() Reads eight input bytes and returns a long value.
long	DataInputStream.readLong() See the general contract of the readLong method of DataInput.
short	DataInput.readShort() Reads two input bytes and returns a short value.
short	DataInputStream.readShort() See the general contract of the readShort method of DataInput.
int	DataInput.readUnsignedByte() Reads one input byte, zero-extends it to type int, and returns the result, which is therefore in the range 0 through 255.
int	DataInputStream.readUnsignedByte() See the general contract of the readUnsignedByte method of DataInput.
int	DataInput.readUnsignedShort() Reads two input bytes and returns an int value in the range 0 through 65535.
int	DataInputStream.readUnsignedShort() See the general contract of the readUnsignedShort method of DataInput.
String	DataInput.readUTF() Reads in a string that has been encoded using a modified UTF-8 format.
String	DataInputStream.readUTF() See the general contract of the readUTF method of DataInput.
static String	DataInputStream.readUTF(DataInput in) Reads from the stream in a representation of a Unicode character string encoded in modified UTF-8 format; this string of characters is then returned as a String.
boolean	Reader.ready() Tells whether this stream is ready to be read.
boolean	InputStreamReader.ready() Tells whether this stream is ready to be read.
void	Reader.reset() Resets the stream.
void	InputStream.reset() Repositions this stream to the position at the time the mark method was last called on this input stream.
void	FilterInputStream.reset() Repositions this stream to the position at the time the mark method was last called on this input stream.
long	Reader.skip(long n) Skips characters.
long	InputStream.skip(long n) Skips over and discards n bytes of data from this input stream.
long	FilterInputStream.skip(long n) Skips over and discards n bytes of data from the input stream.
int	DataInput.skipBytes(int n) Makes an attempt to skip over n bytes of data from the input stream, discarding the skipped bytes.
int	DataInputStream.skipBytes(int n) See the general contract of the skipBytes method of DataInput.
void	DataOutput.write(byte[] b) Writes to the output stream all the bytes in array b.
void	FilterOutputStream.write(byte[] b) Writes b.length bytes to this output stream.
void	OutputStream.write(byte[] b) Writes b.length bytes from the specified byte array to this output stream.
void	DataOutput.write(byte[] b, int off, int len) Writes len bytes from array b, in order, to the output stream.
void	DataOutputStream.write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to the underlying output stream.
void	FilterOutputStream.write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	OutputStream.write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	Writer.write(char[] cbuf) Writes an array of characters.
void	OutputStreamWriter.write(char[] cbuf, int off, int len) Writes a portion of an array of characters.
abstract void	Writer.write(char[] cbuf, int off, int len) Writes a portion of an array of characters.
void	DataOutput.write(int b) Writes to the output stream the eight low-order bits of the argument b.
void	DataOutputStream.write(int b) Writes the specified byte (the low eight bits of the argument b) to the underlying output stream.
void	FilterOutputStream.write(int b) Writes the specified byte to this output stream.
void	OutputStreamWriter.write(int c) Writes a single character.
abstract void	OutputStream.write(int b) Writes the specified byte to this output stream.
void	Writer.write(int c) Writes a single character.
void	Writer.write(String str) Writes a string.
void	OutputStreamWriter.write(String str, int off, int len) Writes a portion of a string.
void	Writer.write(String str, int off, int len) Writes a portion of a string.
void	DataOutput.writeBoolean(boolean v) Writes a boolean value to this output stream.
void	DataOutputStream.writeBoolean(boolean v) Writes a boolean to the underlying output stream as a 1-byte value.
void	DataOutput.writeByte(int v) Writes to the output stream the eight low- order bits of the argument v.
void	DataOutputStream.writeByte(int v) Writes out a byte to the underlying output stream as a 1-byte value.
void	DataOutput.writeChar(int v) Writes a char value, which is comprised of two bytes, to the output stream.
void	DataOutputStream.writeChar(int v) Writes a char to the underlying output stream as a 2-byte value, high byte first.
void	DataOutput.writeChars(String s) Writes every character in the string s, to the output stream, in order, two bytes per character.
void	DataOutputStream.writeChars(String s) Writes a string to the underlying output stream as a sequence of characters.
void	DataOutput.writeDouble(double v) Writes a double value, which is comprised of eight bytes, to the output stream.
void	DataOutputStream.writeDouble(double v) Converts the double argument to a long using the doubleToLongBits method in class Double, and then writes that long value to the underlying output stream as an 8-byte quantity, high byte first.
void	DataOutput.writeFloat(float v) Writes a float value, which is comprised of four bytes, to the output stream.
void	DataOutputStream.writeFloat(float v) Converts the float argument to an int using the floatToIntBits method in class Float, and then writes that int value to the underlying output stream as a 4-byte quantity, high byte first.
void	DataOutput.writeInt(int v) Writes an int value, which is comprised of four bytes, to the output stream.
void	DataOutputStream.writeInt(int v) Writes an int to the underlying output stream as four bytes, high byte first.
void	DataOutput.writeLong(long v) Writes a long value, which is comprised of eight bytes, to the output stream.
void	DataOutputStream.writeLong(long v) Writes a long to the underlying output stream as eight bytes, high byte first.
void	DataOutput.writeShort(int v) Writes two bytes to the output stream to represent the value of the argument.
void	DataOutputStream.writeShort(int v) Writes a short to the underlying output stream as two bytes, high byte first.
void	ByteArrayOutputStream.writeTo(OutputStream out) Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).
void	DataOutput.writeUTF(String s) Writes two bytes of length information to the output stream, followed by the modified UTF-8 representation of every character in the string s.
void	DataOutputStream.writeUTF(String str) Writes a string to the underlying output stream using modified UTF-8 encoding in a machine-independent manner.

Uses of IOException in java.lang

Methods in java.lang that throw IOException

Modifier and Type	Method and Description
Appendable	Appendable.append(char c) Appends the specified character to this Appendable.
Appendable	Appendable.append(CharSequence csq) Appends the specified character sequence to this Appendable.
Appendable	Appendable.append(CharSequence csq, int start, int end) Appends a subsequence of the specified character sequence to this Appendable.