IOException

public class IOException
extends Exception

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.io.IOException

Known direct subclasses

Base64DataException, BluetoothSocketException, CharConversionException, CharacterCodingException, ClosedChannelException, EOFException, FileLockInterruptionException, FileNotFoundException, FileSystemException, HttpException, HttpRetryException, IkeTimeoutException, ImageDecoder.DecodeException, InterruptedByTimeoutException, InterruptedIOException, and 18 others.

Known indirect subclasses

AccessDeniedException, AsynchronousCloseException, AtomicMoveNotSupportedException, BindException, CallbackException, ClosedByInterruptException, ConnectException, ConnectTimeoutException, DirectoryNotEmptyException, FileAlreadyExistsException, FileSystemLoopException, InvalidClassException, InvalidObjectException, JarException, MalformedInputException, and 18 others.

Signals that an I/O exception of some sort has occurred. This class is the general class of exceptions produced by failed or interrupted I/O operations.

Summary

Public constructors
`IOException()` Constructs an `IOException` with `null` as its error detail message.
`IOException(String message)` Constructs an `IOException` with the specified detail message.
`IOException(String message, Throwable cause)` Constructs an `IOException` with the specified detail message and cause.
`IOException(Throwable cause)` Constructs an `IOException` with the specified cause and a detail message of `(cause==null ? null : cause.toString())` (which typically contains the class and detail message of `cause`).

Inherited methods

From class java.lang.Throwable

`final void`	`addSuppressed(Throwable exception)` Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.
`Throwable`	`fillInStackTrace()` Fills in the execution stack trace.
`Throwable`	`getCause()` Returns the cause of this throwable or `null` if the cause is nonexistent or unknown.
`String`	`getLocalizedMessage()` Creates a localized description of this throwable.
`String`	`getMessage()` Returns the detail message string of this throwable.
`StackTraceElement[]`	`getStackTrace()` Provides programmatic access to the stack trace information printed by `printStackTrace()`.
`final Throwable[]`	`getSuppressed()` Returns an array containing all of the exceptions that were suppressed, typically by the `try`-with-resources statement, in order to deliver this exception.
`Throwable`	`initCause(Throwable cause)` Initializes the cause of this throwable to the specified value.
`void`	`printStackTrace()` Prints this throwable and its backtrace to the standard error stream.
`void`	`printStackTrace(PrintWriter s)` Prints this throwable and its backtrace to the specified print writer.
`void`	`printStackTrace(PrintStream s)` Prints this throwable and its backtrace to the specified print stream.
`void`	`setStackTrace(StackTraceElement[] stackTrace)` Sets the stack trace elements that will be returned by `getStackTrace()` and printed by `printStackTrace()` and related methods.
`String`	`toString()` Returns a short description of this throwable.

From class java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

public IOException ()

Constructs an IOException with null as its error detail message.

IOException

public IOException (String message)

Constructs an IOException with the specified detail message.

Parameters
`message`	`String`: The detail message (which is saved for later retrieval by the `Throwable.getMessage()` method)

IOException

public IOException (String message, 
                Throwable cause)

Constructs an IOException with the specified detail message and cause.

Note that the detail message associated with cause is not automatically incorporated into this exception's detail message.

Parameters
`message`	`String`: The detail message (which is saved for later retrieval by the `Throwable.getMessage()` method)
`cause`	`Throwable`: The cause (which is saved for later retrieval by the `Throwable.getCause()` method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

IOException

public IOException (Throwable cause)

Constructs an IOException with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause). This constructor is useful for IO exceptions that are little more than wrappers for other throwables.

Parameters
`cause`	`Throwable`: The cause (which is saved for later retrieval by the `Throwable.getCause()` method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

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