Module java.base
Package java.io

# Class UncheckedIOException

java.lang.Object
java.lang.Throwable
java.lang.Exception
java.lang.RuntimeException
java.io.UncheckedIOException

All Implemented Interfaces:
  `Serializable`

public class UncheckedIOException extends RuntimeException
Wraps an `IOException` with an unchecked exception.

Since:
  1.8
See Also:
  - Serialized Form

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `UncheckedIOException(IOException cause)`
  Constructs an instance of this class.
  `UncheckedIOException(String message, IOException cause)`
  Constructs an instance of this class.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `IOException`
  `getCause()`
  Returns the cause of this exception.

  ### Methods declared in class java.lang.Throwable

  `addSuppressed, fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

  ### Methods declared in class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- ## Constructor Details

  - ### UncheckedIOException

    public UncheckedIOException(String message, IOException cause)
    Constructs an instance of this class.
    Parameters:
      `message` - the detail message, can be null
      `cause` - the `IOException`
    Throws:
      `NullPointerException` - if the cause is `null`

  - ### UncheckedIOException

    public UncheckedIOException(IOException cause)
    Constructs an instance of this class.
    Parameters:
      `cause` - the `IOException`
    Throws:
      `NullPointerException` - if the cause is `null`

- ## Method Details

  - ### getCause

    public IOException getCause()
    Returns the cause of this exception.
    Overrides:
      `getCause` in class `Throwable`
    Returns:
      the `IOException` which is the cause of this exception.