# FileNotFoundException
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)
Summary:[Ctors](https://developer.android.com/reference/java/io/FileNotFoundException#pubctors)\|[Inherited Methods](https://developer.android.com/reference/java/io/FileNotFoundException#inhmethods)
# FileNotFoundException
`
public
class
FileNotFoundException
`
`
``
``
``
extends `[IOException](https://developer.android.com/reference/java/io/IOException)`
``
`
|---|---|---|---|-------------------------------|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) |||||
| ↳ | [java.lang.Throwable](https://developer.android.com/reference/java/lang/Throwable) ||||
| | ↳ | [java.lang.Exception](https://developer.android.com/reference/java/lang/Exception) |||
| | | ↳ | [java.io.IOException](https://developer.android.com/reference/java/io/IOException) ||
| | | | ↳ | java.io.FileNotFoundException |
*** ** * ** ***
Signals that an attempt to open the file denoted by a specified pathname has failed.
This exception will be thrown by the[FileInputStream](https://developer.android.com/reference/java/io/FileInputStream),[FileOutputStream](https://developer.android.com/reference/java/io/FileOutputStream), and[RandomAccessFile](https://developer.android.com/reference/java/io/RandomAccessFile)constructors when a file with the specified pathname does not exist. It will also be thrown by these constructors if the file does exist but for some reason is inaccessible, for example when an attempt is made to open a read-only file for writing.
## Summary
| ### Public constructors ||
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| ` `[FileNotFoundException](https://developer.android.com/reference/java/io/FileNotFoundException#FileNotFoundException())`() ` Constructs a`FileNotFoundException`with`null`as its error detail message. |
| ` `[FileNotFoundException](https://developer.android.com/reference/java/io/FileNotFoundException#FileNotFoundException(java.lang.String))`(`[String](https://developer.android.com/reference/java/lang/String)` s) ` Constructs a`FileNotFoundException`with the specified detail message. |
| ### Inherited methods |
|-----------------------|---|
| From class` `[java.lang.Throwable](https://developer.android.com/reference/java/lang/Throwable)` ` |-----------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` final void` | ` `[addSuppressed](https://developer.android.com/reference/java/lang/Throwable#addSuppressed(java.lang.Throwable))`(`[Throwable](https://developer.android.com/reference/java/lang/Throwable)` exception) ` Appends the specified exception to the exceptions that were suppressed in order to deliver this exception. | | ` `[Throwable](https://developer.android.com/reference/java/lang/Throwable) | ` `[fillInStackTrace](https://developer.android.com/reference/java/lang/Throwable#fillInStackTrace())`() ` Fills in the execution stack trace. | | ` `[Throwable](https://developer.android.com/reference/java/lang/Throwable) | ` `[getCause](https://developer.android.com/reference/java/lang/Throwable#getCause())`() ` Returns the cause of this throwable or`null`if the cause is nonexistent or unknown. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[getLocalizedMessage](https://developer.android.com/reference/java/lang/Throwable#getLocalizedMessage())`() ` Creates a localized description of this throwable. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[getMessage](https://developer.android.com/reference/java/lang/Throwable#getMessage())`() ` Returns the detail message string of this throwable. | | ` `[StackTraceElement[]](https://developer.android.com/reference/java/lang/StackTraceElement) | ` `[getStackTrace](https://developer.android.com/reference/java/lang/Throwable#getStackTrace())`() ` Provides programmatic access to the stack trace information printed by[printStackTrace()](https://developer.android.com/reference/java/lang/Throwable#printStackTrace()). | | ` final `[Throwable[]](https://developer.android.com/reference/java/lang/Throwable) | ` `[getSuppressed](https://developer.android.com/reference/java/lang/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](https://developer.android.com/reference/java/lang/Throwable) | ` `[initCause](https://developer.android.com/reference/java/lang/Throwable#initCause(java.lang.Throwable))`(`[Throwable](https://developer.android.com/reference/java/lang/Throwable)` cause) ` Initializes the*cause*of this throwable to the specified value. | | ` void` | ` `[printStackTrace](https://developer.android.com/reference/java/lang/Throwable#printStackTrace())`() ` Prints this throwable and its backtrace to the standard error stream. | | ` void` | ` `[printStackTrace](https://developer.android.com/reference/java/lang/Throwable#printStackTrace(java.io.PrintWriter))`(`[PrintWriter](https://developer.android.com/reference/java/io/PrintWriter)` s) ` Prints this throwable and its backtrace to the specified print writer. | | ` void` | ` `[printStackTrace](https://developer.android.com/reference/java/lang/Throwable#printStackTrace(java.io.PrintStream))`(`[PrintStream](https://developer.android.com/reference/java/io/PrintStream)` s) ` Prints this throwable and its backtrace to the specified print stream. | | ` void` | ` `[setStackTrace](https://developer.android.com/reference/java/lang/Throwable#setStackTrace(java.lang.StackTraceElement[]))`(`[StackTraceElement[]](https://developer.android.com/reference/java/lang/StackTraceElement)` stackTrace) ` Sets the stack trace elements that will be returned by[getStackTrace()](https://developer.android.com/reference/java/lang/Throwable#getStackTrace())and printed by[printStackTrace()](https://developer.android.com/reference/java/lang/Throwable#printStackTrace())and related methods. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toString](https://developer.android.com/reference/java/lang/Throwable#toString())`() ` Returns a short description of this throwable. | ||
| From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object) | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`. | | ` int` | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(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](https://developer.android.com/reference/java/lang/Object#wait(long))`(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](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*. | ||
## Public constructors
### FileNotFoundException
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)
```
public FileNotFoundException ()
```
Constructs a`FileNotFoundException`with`null`as its error detail message.
### FileNotFoundException
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)
```
public FileNotFoundException (String s)
```
Constructs a`FileNotFoundException`with the specified detail message. The string`s`can be retrieved later by the[Throwable.getMessage()](https://developer.android.com/reference/java/lang/Throwable#getMessage())method of class`java.lang.Throwable`.
| Parameters ||
|-----|--------------------------------------|
| `s` | `String`: the detail message.
|