Uses of Class
java.io.IOException

Packages that use IOException

Package	Description
java.io
java.lang	Provides classes that are fundamental to the design of the Java programming language.

Uses of IOException in java.io

Subclasses of IOException in java.io

Modifier and Type	Class and Description
class	CharConversionException Base class for character conversion exceptions.
class	EOFException Signals that an end of file or end of stream has been reached unexpectedly during input.
class	FileNotFoundException Signals that an attempt to open the file denoted by a specified pathname has failed.
class	InterruptedIOException Signals that an I/O operation has been interrupted.
class	InvalidClassException Thrown when the Serialization runtime detects one of the following problems with a Class.
class	InvalidObjectException Indicates that one or more deserialized objects failed validation tests.
class	NotActiveException Thrown when serialization or deserialization is not active.
class	NotSerializableException Thrown when an instance is required to have a Serializable interface.
class	ObjectStreamException Superclass of all exceptions specific to Object Stream classes.
class	OptionalDataException Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
class	StreamCorruptedException Thrown when control information that was read from an object stream violates internal consistency checks.
class	SyncFailedException Signals that a sync operation has failed.
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.
class	WriteAbortedException Signals that one of the ObjectStreamExceptions was thrown during a write operation.

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	SequenceInputStream.available() Returns an estimate of the number of bytes that can be read (or skipped over) from the current underlying input stream without blocking by the next invocation of a method for the current underlying input stream.
int	PushbackInputStream.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	PipedInputStream.available() Returns the number of bytes that can be read from this input stream without blocking.
int	ObjectInputStream.available() Returns the number of bytes that can be read without blocking.
int	ObjectInput.available() Returns the number of bytes that can be read without blocking.
int	LineNumberInputStream.available() Deprecated. Returns the number of bytes that can be read from this input stream without blocking.
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.
int	FileInputStream.available() Returns an estimate of the number of remaining 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	BufferedInputStream.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.
abstract void	Writer.close() Closes the stream, flushing it first.
void	StringWriter.close() Closing a StringWriter has no effect.
void	SequenceInputStream.close() Closes this input stream and releases any system resources associated with the stream.
abstract void	Reader.close() Closes the stream and releases any system resources associated with it.
void	RandomAccessFile.close() Closes this random access file stream and releases any system resources associated with the stream.
void	PushbackReader.close() Closes the stream and releases any system resources associated with it.
void	PushbackInputStream.close() Closes this input stream and releases any system resources associated with the stream.
void	PipedWriter.close() Closes this piped output stream and releases any system resources associated with this stream.
void	PipedReader.close() Closes this piped stream and releases any system resources associated with the stream.
void	PipedOutputStream.close() Closes this piped output stream and releases any system resources associated with this stream.
void	PipedInputStream.close() Closes this piped input stream and releases any system resources associated with the stream.
void	OutputStreamWriter.close()
void	OutputStream.close() Closes this output stream and releases any system resources associated with this stream.
void	ObjectOutputStream.close() Closes the stream.
void	ObjectOutput.close() Closes the stream.
void	ObjectInputStream.close() Closes the input stream.
void	ObjectInput.close() Closes the input stream.
void	InputStreamReader.close()
void	InputStream.close() Closes this input stream and releases any system resources associated with the stream.
void	FilterWriter.close()
void	FilterReader.close()
void	FilterOutputStream.close() Closes this output 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	FileOutputStream.close() Closes this file output stream and releases any system resources associated with this stream.
void	FileInputStream.close() Closes this file input stream and releases any system resources associated with the stream.
void	Closeable.close() Closes this stream and releases any system resources associated with it.
void	ByteArrayOutputStream.close() Closing a ByteArrayOutputStream has no effect.
void	ByteArrayInputStream.close() Closing a ByteArrayInputStream has no effect.
void	BufferedWriter.close()
void	BufferedReader.close()
void	BufferedInputStream.close() Closes this input stream and releases any system resources associated with the stream.
void	PipedOutputStream.connect(PipedInputStream snk) Connects this piped output stream to a receiver.
void	PipedInputStream.connect(PipedOutputStream src) Causes this piped input stream to be connected to the piped output stream src.
void	PipedWriter.connect(PipedReader snk) Connects this piped writer to a receiver.
void	PipedReader.connect(PipedWriter src) Causes this piped reader to be connected to the piped writer src.
boolean	File.createNewFile() Atomically creates a new, empty file named by this abstract pathname if and only if a file with this name does not yet exist.
static File	File.createTempFile(String prefix, String suffix) Creates an empty file in the default temporary-file directory, using the given prefix and suffix to generate its name.
static File	File.createTempFile(String prefix, String suffix, File directory) Creates a new empty file in the specified directory, using the given prefix and suffix strings to generate its name.
abstract boolean	ObjectInputStream.GetField.defaulted(String name) Return true if the named field is defaulted and has no value in this stream.
void	ObjectInputStream.defaultReadObject() Read the non-static and non-transient fields of the current class from this stream.
void	ObjectOutputStream.defaultWriteObject() Write the non-static and non-transient fields of the current class to this stream.
abstract void	Writer.flush() Flushes the stream.
void	PipedWriter.flush() Flushes this output stream and forces any buffered output characters to be written out.
void	PipedOutputStream.flush() Flushes this output stream and forces any buffered output bytes to be written out.
void	OutputStreamWriter.flush() Flushes the stream.
void	OutputStream.flush() Flushes this output stream and forces any buffered output bytes to be written out.
void	ObjectOutputStream.flush() Flushes the stream.
void	ObjectOutput.flush() Flushes the stream.
void	Flushable.flush() Flushes this stream by writing any buffered output to the underlying stream.
void	FilterWriter.flush() Flushes the stream.
void	FilterOutputStream.flush() Flushes this output stream and forces any buffered output bytes to be written out to the stream.
void	DataOutputStream.flush() Flushes this data output stream.
void	BufferedWriter.flush() Flushes the stream.
void	BufferedOutputStream.flush() Flushes this buffered output stream.
abstract boolean	ObjectInputStream.GetField.get(String name, boolean val) Get the value of the named boolean field from the persistent field.
abstract byte	ObjectInputStream.GetField.get(String name, byte val) Get the value of the named byte field from the persistent field.
abstract char	ObjectInputStream.GetField.get(String name, char val) Get the value of the named char field from the persistent field.
abstract double	ObjectInputStream.GetField.get(String name, double val) Get the value of the named double field from the persistent field.
abstract float	ObjectInputStream.GetField.get(String name, float val) Get the value of the named float field from the persistent field.
abstract int	ObjectInputStream.GetField.get(String name, int val) Get the value of the named int field from the persistent field.
abstract long	ObjectInputStream.GetField.get(String name, long val) Get the value of the named long field from the persistent field.
abstract Object	ObjectInputStream.GetField.get(String name, Object val) Get the value of the named Object field from the persistent field.
abstract short	ObjectInputStream.GetField.get(String name, short val) Get the value of the named short field from the persistent field.
File	File.getCanonicalFile() Returns the canonical form of this abstract pathname.
String	File.getCanonicalPath() Returns the canonical pathname string of this abstract pathname.
FileDescriptor	RandomAccessFile.getFD() Returns the opaque file descriptor object associated with this stream.
FileDescriptor	FileOutputStream.getFD() Returns the file descriptor associated with this stream.
FileDescriptor	FileInputStream.getFD() Returns the FileDescriptor object that represents the connection to the actual file in the file system being used by this FileInputStream.
long	RandomAccessFile.getFilePointer() Returns the current offset in this file.
long	RandomAccessFile.length() Returns the length of this file.
void	StringReader.mark(int readAheadLimit) Marks the present position in the stream.
void	Reader.mark(int readAheadLimit) Marks the present position in the stream.
void	PushbackReader.mark(int readAheadLimit) Marks the present position in the stream.
void	LineNumberReader.mark(int readAheadLimit) Mark the present position in the stream.
void	FilterReader.mark(int readAheadLimit) Marks the present position in the stream.
void	CharArrayReader.mark(int readAheadLimit) Marks the present position in the stream.
void	BufferedReader.mark(int readAheadLimit) Marks the present position in the stream.
void	BufferedWriter.newLine() Writes a line separator.
int	StreamTokenizer.nextToken() Parses the next token from the input stream of this tokenizer.
ObjectOutputStream.PutField	ObjectOutputStream.putFields() Retrieve the object used to buffer persistent fields to be written to the stream.
int	StringReader.read() Reads a single character.
int	SequenceInputStream.read() Reads the next byte of data from this input stream.
int	Reader.read() Reads a single character.
int	RandomAccessFile.read() Reads a byte of data from this file.
int	PushbackReader.read() Reads a single character.
int	PushbackInputStream.read() Reads the next byte of data from this input stream.
int	PipedReader.read() Reads the next character of data from this piped stream.
int	PipedInputStream.read() Reads the next byte of data from this piped input stream.
int	ObjectInputStream.read() Reads a byte of data.
int	ObjectInput.read() Reads a byte of data.
int	LineNumberReader.read() Read a single character.
int	LineNumberInputStream.read() Deprecated. Reads the next byte of data from this input stream.
int	InputStreamReader.read() Reads a single character.
abstract int	InputStream.read() Reads the next byte of data from the input stream.
int	FilterReader.read() Reads a single character.
int	FilterInputStream.read() Reads the next byte of data from this input stream.
int	FileInputStream.read() Reads a byte of data from this input stream.
int	CharArrayReader.read() Reads a single character.
int	BufferedReader.read() Reads a single character.
int	BufferedInputStream.read() See the general contract of the read method of InputStream.
int	RandomAccessFile.read(byte[] b) Reads up to b.length bytes of data from this file into an array of bytes.
int	ObjectInput.read(byte[] b) Reads into an array of bytes.
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	FileInputStream.read(byte[] b) Reads up to b.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	SequenceInputStream.read(byte[] b, int off, int len) Reads up to len bytes of data from this input stream into an array of bytes.
int	RandomAccessFile.read(byte[] b, int off, int len) Reads up to len bytes of data from this file into an array of bytes.
int	PushbackInputStream.read(byte[] b, int off, int len) Reads up to len bytes of data from this input stream into an array of bytes.
int	PipedInputStream.read(byte[] b, int off, int len) Reads up to len bytes of data from this piped input stream into an array of bytes.
int	ObjectInputStream.read(byte[] buf, int off, int len) Reads into an array of bytes.
int	ObjectInput.read(byte[] b, int off, int len) Reads into an array of bytes.
int	LineNumberInputStream.read(byte[] b, int off, int len) Deprecated. Reads up to len bytes of data from this input stream into an array of bytes.
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	FileInputStream.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	BufferedInputStream.read(byte[] b, int off, int len) Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.
int	Reader.read(char[] cbuf) Reads characters into an array.
int	StringReader.read(char[] cbuf, int off, int len) Reads characters into a portion of an array.
abstract int	Reader.read(char[] cbuf, int off, int len) Reads characters into a portion of an array.
int	PushbackReader.read(char[] cbuf, int off, int len) Reads characters into a portion of an array.
int	PipedReader.read(char[] cbuf, int off, int len) Reads up to len characters of data from this piped stream into an array of characters.
int	LineNumberReader.read(char[] cbuf, int off, int len) Read characters into a portion of an array.
int	InputStreamReader.read(char[] cbuf, int offset, int length) Reads characters into a portion of an array.
int	FilterReader.read(char[] cbuf, int off, int len) Reads characters into a portion of an array.
int	CharArrayReader.read(char[] b, int off, int len) Reads characters into a portion of an array.
int	BufferedReader.read(char[] cbuf, int off, int len) Reads characters into a portion of an array.
int	Reader.read(java.nio.CharBuffer target) Attempts to read characters into the specified character buffer.
boolean	RandomAccessFile.readBoolean() Reads a boolean from this file.
boolean	ObjectInputStream.readBoolean() Reads in a boolean.
boolean	DataInputStream.readBoolean() See the general contract of the readBoolean method of DataInput.
boolean	DataInput.readBoolean() Reads one input byte and returns true if that byte is nonzero, false if that byte is zero.
byte	RandomAccessFile.readByte() Reads a signed eight-bit value from this file.
byte	ObjectInputStream.readByte() Reads an 8 bit byte.
byte	DataInputStream.readByte() See the general contract of the readByte method of DataInput.
byte	DataInput.readByte() Reads and returns one input byte.
char	RandomAccessFile.readChar() Reads a character from this file.
char	ObjectInputStream.readChar() Reads a 16 bit char.
char	DataInputStream.readChar() See the general contract of the readChar method of DataInput.
char	DataInput.readChar() Reads two input bytes and returns a char value.
double	RandomAccessFile.readDouble() Reads a double from this file.
double	ObjectInputStream.readDouble() Reads a 64 bit double.
double	DataInputStream.readDouble() See the general contract of the readDouble method of DataInput.
double	DataInput.readDouble() Reads eight input bytes and returns a double value.
void	Externalizable.readExternal(ObjectInput in) The object implements the readExternal method to restore its contents by calling the methods of DataInput for primitive types and readObject for objects, strings and arrays.
ObjectInputStream.GetField	ObjectInputStream.readFields() Reads the persistent fields from the stream and makes them available by name.
float	RandomAccessFile.readFloat() Reads a float from this file.
float	ObjectInputStream.readFloat() Reads a 32 bit float.
float	DataInputStream.readFloat() See the general contract of the readFloat method of DataInput.
float	DataInput.readFloat() Reads four input bytes and returns a float value.
void	RandomAccessFile.readFully(byte[] b) Reads b.length bytes from this file into the byte array, starting at the current file pointer.
void	ObjectInputStream.readFully(byte[] buf) Reads bytes, blocking until all bytes are read.
void	DataInputStream.readFully(byte[] b) See the general contract of the readFully method of DataInput.
void	DataInput.readFully(byte[] b) Reads some bytes from an input stream and stores them into the buffer array b.
void	RandomAccessFile.readFully(byte[] b, int off, int len) Reads exactly len bytes from this file into the byte array, starting at the current file pointer.
void	ObjectInputStream.readFully(byte[] buf, int off, int len) Reads bytes, blocking until all bytes are read.
void	DataInputStream.readFully(byte[] b, int off, int len) 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.
int	RandomAccessFile.readInt() Reads a signed 32-bit integer from this file.
int	ObjectInputStream.readInt() Reads a 32 bit int.
int	DataInputStream.readInt() See the general contract of the readInt method of DataInput.
int	DataInput.readInt() Reads four input bytes and returns an int value.
String	RandomAccessFile.readLine() Reads the next line of text from this file.
String	ObjectInputStream.readLine() Deprecated. This method does not properly convert bytes to characters. see DataInputStream for the details and alternatives.
String	LineNumberReader.readLine() Read a line of text.
String	DataInputStream.readLine() Deprecated. This method does not properly convert bytes to characters. As of JDK 1.1, the preferred way to read lines of text is via the BufferedReader.readLine() method. Programs that use the DataInputStream class to read lines can be converted to use the BufferedReader class by replacing code of the form: DataInputStream d = new DataInputStream(in); with: BufferedReader d = new BufferedReader(new InputStreamReader(in));
String	DataInput.readLine() Reads the next line of text from the input stream.
String	BufferedReader.readLine() Reads a line of text.
long	RandomAccessFile.readLong() Reads a signed 64-bit integer from this file.
long	ObjectInputStream.readLong() Reads a 64 bit long.
long	DataInputStream.readLong() See the general contract of the readLong method of DataInput.
long	DataInput.readLong() Reads eight input bytes and returns a long value.
Object	ObjectInputStream.readObject() Read an object from the ObjectInputStream.
Object	ObjectInput.readObject() Read and return an object.
short	RandomAccessFile.readShort() Reads a signed 16-bit number from this file.
short	ObjectInputStream.readShort() Reads a 16 bit short.
short	DataInputStream.readShort() See the general contract of the readShort method of DataInput.
short	DataInput.readShort() Reads two input bytes and returns a short value.
Object	ObjectInputStream.readUnshared() Reads an "unshared" object from the ObjectInputStream.
int	RandomAccessFile.readUnsignedByte() Reads an unsigned eight-bit number from this file.
int	ObjectInputStream.readUnsignedByte() Reads an unsigned 8 bit byte.
int	DataInputStream.readUnsignedByte() See the general contract of the readUnsignedByte 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	RandomAccessFile.readUnsignedShort() Reads an unsigned 16-bit number from this file.
int	ObjectInputStream.readUnsignedShort() Reads an unsigned 16 bit short.
int	DataInputStream.readUnsignedShort() See the general contract of the readUnsignedShort method of DataInput.
int	DataInput.readUnsignedShort() Reads two input bytes and returns an int value in the range 0 through 65535.
String	RandomAccessFile.readUTF() Reads in a string from this file.
String	ObjectInputStream.readUTF() Reads a String in modified UTF-8 format.
String	DataInputStream.readUTF() See the general contract of the readUTF method of DataInput.
String	DataInput.readUTF() Reads in a string that has been encoded using a modified UTF-8 format.
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	StringReader.ready() Tells whether this stream is ready to be read.
boolean	Reader.ready() Tells whether this stream is ready to be read.
boolean	PushbackReader.ready() Tells whether this stream is ready to be read.
boolean	PipedReader.ready() Tell whether this stream is ready to be read.
boolean	InputStreamReader.ready() Tells whether this stream is ready to be read.
boolean	FilterReader.ready() Tells whether this stream is ready to be read.
boolean	CharArrayReader.ready() Tells whether this stream is ready to be read.
boolean	BufferedReader.ready() Tells whether this stream is ready to be read.
void	StringReader.reset() Resets the stream to the most recent mark, or to the beginning of the string if it has never been marked.
void	Reader.reset() Resets the stream.
void	PushbackReader.reset() Resets the stream.
void	PushbackInputStream.reset() Repositions this stream to the position at the time the mark method was last called on this input stream.
void	ObjectOutputStream.reset() Reset will disregard the state of any objects already written to the stream.
void	LineNumberReader.reset() Reset the stream to the most recent mark.
void	LineNumberInputStream.reset() Deprecated. Repositions this stream to the position at the time the mark method was last called on this input stream.
void	InputStream.reset() Repositions this stream to the position at the time the mark method was last called on this input stream.
void	FilterReader.reset() Resets the stream.
void	FilterInputStream.reset() Repositions this stream to the position at the time the mark method was last called on this input stream.
void	CharArrayReader.reset() Resets the stream to the most recent mark, or to the beginning if it has never been marked.
void	BufferedReader.reset() Resets the stream to the most recent mark.
void	BufferedInputStream.reset() See the general contract of the reset method of InputStream.
void	RandomAccessFile.seek(long pos) Sets the file-pointer offset, measured from the beginning of this file, at which the next read or write occurs.
void	RandomAccessFile.setLength(long newLength) Sets the length of this file.
long	StringReader.skip(long ns) Skips the specified number of characters in the stream.
long	Reader.skip(long n) Skips characters.
long	PushbackReader.skip(long n) Skips characters.
long	PushbackInputStream.skip(long n) Skips over and discards n bytes of data from this input stream.
long	ObjectInput.skip(long n) Skips n bytes of input.
long	LineNumberReader.skip(long n) Skip characters.
long	LineNumberInputStream.skip(long n) Deprecated. Skips over and discards n bytes of data from this input stream.
long	InputStream.skip(long n) Skips over and discards n bytes of data from this input stream.
long	FilterReader.skip(long n) Skips characters.
long	FilterInputStream.skip(long n) Skips over and discards n bytes of data from the input stream.
long	FileInputStream.skip(long n) Skips over and discards n bytes of data from the input stream.
long	CharArrayReader.skip(long n) Skips characters.
long	BufferedReader.skip(long n) Skips characters.
long	BufferedInputStream.skip(long n) See the general contract of the skip method of InputStream.
int	RandomAccessFile.skipBytes(int n) Attempts to skip over n bytes of input discarding the skipped bytes.
int	ObjectInputStream.skipBytes(int len) Skips bytes.
int	DataInputStream.skipBytes(int n) See the general contract of the skipBytes method of DataInput.
int	DataInput.skipBytes(int n) Makes an attempt to skip over n bytes of data from the input stream, discarding the skipped bytes.
void	PushbackInputStream.unread(byte[] b) Pushes back an array of bytes by copying it to the front of the pushback buffer.
void	PushbackInputStream.unread(byte[] b, int off, int len) Pushes back a portion of an array of bytes by copying it to the front of the pushback buffer.
void	PushbackReader.unread(char[] cbuf) Pushes back an array of characters by copying it to the front of the pushback buffer.
void	PushbackReader.unread(char[] cbuf, int off, int len) Pushes back a portion of an array of characters by copying it to the front of the pushback buffer.
void	PushbackReader.unread(int c) Pushes back a single character by copying it to the front of the pushback buffer.
void	PushbackInputStream.unread(int b) Pushes back a byte by copying it to the front of the pushback buffer.
void	ObjectOutputStream.useProtocolVersion(int version) Specify stream protocol version to use when writing the stream.
void	RandomAccessFile.write(byte[] b) Writes b.length bytes from the specified byte array to this file, starting at the current file pointer.
void	OutputStream.write(byte[] b) Writes b.length bytes from the specified byte array to this output stream.
void	ObjectOutputStream.write(byte[] buf) Writes an array of bytes.
void	ObjectOutput.write(byte[] b) Writes an array of bytes.
void	FilterOutputStream.write(byte[] b) Writes b.length bytes to this output stream.
void	FileOutputStream.write(byte[] b) Writes b.length bytes from the specified byte array to this file output stream.
void	DataOutput.write(byte[] b) Writes to the output stream all the bytes in array b.
void	RandomAccessFile.write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this file.
void	PipedOutputStream.write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this piped 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	ObjectOutputStream.write(byte[] buf, int off, int len) Writes a sub array of bytes.
void	ObjectOutput.write(byte[] b, int off, int len) Writes a sub array of bytes.
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	FileOutputStream.write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this file 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	DataOutput.write(byte[] b, int off, int len) Writes len bytes from array b, in order, to the output stream.
void	BufferedOutputStream.write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this buffered output stream.
void	Writer.write(char[] cbuf) Writes an array of characters.
abstract void	Writer.write(char[] cbuf, int off, int len) Writes a portion of an array of characters.
void	PipedWriter.write(char[] cbuf, int off, int len) Writes len characters from the specified character array starting at offset off to this piped output stream.
void	OutputStreamWriter.write(char[] cbuf, int off, int len) Writes a portion of an array of characters.
void	FilterWriter.write(char[] cbuf, int off, int len) Writes a portion of an array of characters.
void	BufferedWriter.write(char[] cbuf, int off, int len) Writes a portion of an array of characters.
void	Writer.write(int c) Writes a single character.
void	RandomAccessFile.write(int b) Writes the specified byte to this file.
void	PipedWriter.write(int c) Writes the specified char to the piped output stream.
void	PipedOutputStream.write(int b) Writes the specified byte to the piped 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	ObjectOutputStream.write(int val) Writes a byte.
void	ObjectOutput.write(int b) Writes a byte.
void	FilterWriter.write(int c) Writes a single character.
void	FilterOutputStream.write(int b) Writes the specified byte to this output stream.
void	FileOutputStream.write(int b) Writes the specified byte to this file output stream.
void	DataOutputStream.write(int b) Writes the specified byte (the low eight bits of the argument b) to the underlying output stream.
void	DataOutput.write(int b) Writes to the output stream the eight low-order bits of the argument b.
void	BufferedWriter.write(int c) Writes a single character.
void	BufferedOutputStream.write(int b) Writes the specified byte to this buffered output stream.
abstract void	ObjectOutputStream.PutField.write(ObjectOutput out) Deprecated. This method does not write the values contained by this PutField object in a proper format, and may result in corruption of the serialization stream. The correct way to write PutField data is by calling the ObjectOutputStream.writeFields() method.
void	Writer.write(String str) Writes a string.
void	Writer.write(String str, int off, int len) Writes a portion of a string.
void	OutputStreamWriter.write(String str, int off, int len) Writes a portion of a string.
void	FilterWriter.write(String str, int off, int len) Writes a portion of a string.
void	BufferedWriter.write(String s, int off, int len) Writes a portion of a String.
void	RandomAccessFile.writeBoolean(boolean v) Writes a boolean to the file as a one-byte value.
void	ObjectOutputStream.writeBoolean(boolean val) Writes a boolean.
void	DataOutputStream.writeBoolean(boolean v) Writes a boolean to the underlying output stream as a 1-byte value.
void	DataOutput.writeBoolean(boolean v) Writes a boolean value to this output stream.
void	RandomAccessFile.writeByte(int v) Writes a byte to the file as a one-byte value.
void	ObjectOutputStream.writeByte(int val) Writes an 8 bit byte.
void	DataOutputStream.writeByte(int v) Writes out a byte 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	RandomAccessFile.writeBytes(String s) Writes the string to the file as a sequence of bytes.
void	ObjectOutputStream.writeBytes(String str) Writes a String as a sequence of bytes.
void	DataOutputStream.writeBytes(String s) Writes out the string to the underlying output stream as a sequence of bytes.
void	DataOutput.writeBytes(String s) Writes a string to the output stream.
void	RandomAccessFile.writeChar(int v) Writes a char to the file as a two-byte value, high byte first.
void	ObjectOutputStream.writeChar(int val) Writes a 16 bit char.
void	DataOutputStream.writeChar(int v) Writes a char to the underlying output stream as a 2-byte value, high byte first.
void	DataOutput.writeChar(int v) Writes a char value, which is comprised of two bytes, to the output stream.
void	RandomAccessFile.writeChars(String s) Writes a string to the file as a sequence of characters.
void	ObjectOutputStream.writeChars(String str) Writes a String as a sequence of chars.
void	DataOutputStream.writeChars(String s) Writes a string to the underlying output stream as a sequence of characters.
void	DataOutput.writeChars(String s) Writes every character in the string s, to the output stream, in order, two bytes per character.
void	RandomAccessFile.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 file as an eight-byte quantity, high byte first.
void	ObjectOutputStream.writeDouble(double val) Writes a 64 bit double.
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.writeDouble(double v) Writes a double value, which is comprised of eight bytes, to the output stream.
void	Externalizable.writeExternal(ObjectOutput out) The object implements the writeExternal method to save its contents by calling the methods of DataOutput for its primitive values or calling the writeObject method of ObjectOutput for objects, strings, and arrays.
void	ObjectOutputStream.writeFields() Write the buffered fields to the stream.
void	RandomAccessFile.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 file as a four-byte quantity, high byte first.
void	ObjectOutputStream.writeFloat(float val) Writes a 32 bit float.
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.writeFloat(float v) Writes a float value, which is comprised of four bytes, to the output stream.
void	RandomAccessFile.writeInt(int v) Writes an int to the file as four bytes, high byte first.
void	ObjectOutputStream.writeInt(int val) Writes a 32 bit int.
void	DataOutputStream.writeInt(int v) Writes an int to the underlying output stream as four bytes, high byte first.
void	DataOutput.writeInt(int v) Writes an int value, which is comprised of four bytes, to the output stream.
void	RandomAccessFile.writeLong(long v) Writes a long to the file as eight bytes, high byte first.
void	ObjectOutputStream.writeLong(long val) Writes a 64 bit long.
void	DataOutputStream.writeLong(long v) Writes a long to the underlying output stream as eight bytes, high byte first.
void	DataOutput.writeLong(long v) Writes a long value, which is comprised of eight bytes, to the output stream.
void	ObjectOutputStream.writeObject(Object obj) Write the specified object to the ObjectOutputStream.
void	ObjectOutput.writeObject(Object obj) Write an object to the underlying storage or stream.
void	RandomAccessFile.writeShort(int v) Writes a short to the file as two bytes, high byte first.
void	ObjectOutputStream.writeShort(int val) Writes a 16 bit short.
void	DataOutputStream.writeShort(int v) Writes a short to the underlying output stream as two bytes, high byte first.
void	DataOutput.writeShort(int v) Writes two bytes to the output stream to represent the value of the argument.
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	CharArrayWriter.writeTo(Writer out) Writes the contents of the buffer to another character stream.
void	ObjectOutputStream.writeUnshared(Object obj) Writes an "unshared" object to the ObjectOutputStream.
void	RandomAccessFile.writeUTF(String str) Writes a string to the file using modified UTF-8 encoding in a machine-independent manner.
void	ObjectOutputStream.writeUTF(String str) Primitive data write of this String in modified UTF-8 format.
void	DataOutputStream.writeUTF(String str) Writes a string to the underlying output stream using modified UTF-8 encoding in a machine-independent manner.
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.

Constructors in java.io that throw IOException

Constructor and Description
FileWriter(File file) Constructs a FileWriter object given a File object.
FileWriter(File file, boolean append) Constructs a FileWriter object given a File object.
FileWriter(String fileName) Constructs a FileWriter object given a file name.
FileWriter(String fileName, boolean append) Constructs a FileWriter object given a file name with a boolean indicating whether or not to append the data written.
ObjectInputStream(InputStream in) Creates an ObjectInputStream that reads from the specified InputStream.
ObjectOutputStream(OutputStream out) Creates an ObjectOutputStream that writes to the specified OutputStream.
PipedInputStream(PipedOutputStream src) Creates a PipedInputStream so that it is connected to the piped output stream src.
PipedInputStream(PipedOutputStream src, int pipeSize) Creates a PipedInputStream so that it is connected to the piped output stream src and uses the specified pipe size for the pipe's buffer.
PipedOutputStream(PipedInputStream snk) Creates a piped output stream connected to the specified piped input stream.
PipedReader(PipedWriter src) Creates a PipedReader so that it is connected to the piped writer src.
PipedReader(PipedWriter src, int pipeSize) Creates a PipedReader so that it is connected to the piped writer src and uses the specified pipe size for the pipe's buffer.
PipedWriter(PipedReader snk) Creates a piped writer connected to the specified piped reader.

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.
Process	Runtime.exec(String command) Executes the specified string command in a separate process.
Process	Runtime.exec(String[] cmdarray) Executes the specified command and arguments in a separate process.
Process	Runtime.exec(String[] cmdarray, String[] envp) Executes the specified command and arguments in a separate process with the specified environment.
Process	Runtime.exec(String[] cmdarray, String[] envp, File dir) Executes the specified command and arguments in a separate process with the specified environment and working directory.
Process	Runtime.exec(String command, String[] envp) Executes the specified string command in a separate process with the specified environment.
Process	Runtime.exec(String command, String[] envp, File dir) Executes the specified string command in a separate process with the specified environment and working directory.
java.util.Enumeration<java.net.URL>	ClassLoader.getResources(String name) Finds all the resources with the given name.
static java.util.Enumeration<java.net.URL>	ClassLoader.getSystemResources(String name) Finds all resources of the specified name from the search path used to load classes.
static java.nio.channels.Channel	System.inheritedChannel() Returns the channel inherited from the entity that created this Java virtual machine.
int	Readable.read(java.nio.CharBuffer cb) Attempts to read characters into the specified character buffer.
Process	ProcessBuilder.start() Starts a new process using the attributes of this process builder.