Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)   
Deprecated in [API level
16](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Ctors](https://developer.android.com/reference/android/test/AssertionFailedError#pubctors) \| [Inherited Methods](https://developer.android.com/reference/android/test/AssertionFailedError#inhmethods)

# AssertionFailedError

*** ** * ** ***


`
public


class
AssertionFailedError
`


`


`

`


`

`

extends https://developer.android.com/reference/java/lang/Error


`

`


`

|---|---|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||||
| ↳ | [java.lang.Throwable](https://developer.android.com/reference/java/lang/Throwable) |||
|   | ↳ | [java.lang.Error](https://developer.android.com/reference/java/lang/Error) ||
|   |   | ↳ | android.test.AssertionFailedError |

|---|
| Known direct subclasses [ComparisonFailure](https://developer.android.com/reference/android/test/ComparisonFailure) |---|---| | [ComparisonFailure](https://developer.android.com/reference/android/test/ComparisonFailure) | *This class was deprecated in API level 16. use org.junit.ComparisonFailure* | |

<br />

*** ** * ** ***


**This class was deprecated
in API level 16.**   

use junit.framework.AssertionFailedError

Thrown when an assertion failed.

## Summary

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/test/AssertionFailedError#AssertionFailedError()() ` It is more typical to call `https://developer.android.com/reference/android/test/AssertionFailedError#AssertionFailedError(java.lang.String)`. |
| ` https://developer.android.com/reference/android/test/AssertionFailedError#AssertionFailedError(java.lang.String)(https://developer.android.com/reference/java/lang/String errorMessage) ` |

| ### Inherited methods |
|---|---|
| From class ` https://developer.android.com/reference/java/lang/Throwable ` |---|---| | ` final void` | ` https://developer.android.com/reference/java/lang/Throwable#addSuppressed(java.lang.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. | | ` https://developer.android.com/reference/java/lang/Throwable` | ` https://developer.android.com/reference/java/lang/Throwable#fillInStackTrace()() ` Fills in the execution stack trace. | | ` https://developer.android.com/reference/java/lang/Throwable` | ` https://developer.android.com/reference/java/lang/Throwable#getCause()() ` Returns the cause of this throwable or `null` if the cause is nonexistent or unknown. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Throwable#getLocalizedMessage()() ` Creates a localized description of this throwable. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Throwable#getMessage()() ` Returns the detail message string of this throwable. | | ` https://developer.android.com/reference/java/lang/StackTraceElement` | ` https://developer.android.com/reference/java/lang/Throwable#getStackTrace()() ` Provides programmatic access to the stack trace information printed by `https://developer.android.com/reference/java/lang/Throwable#printStackTrace()`. | | ` final https://developer.android.com/reference/java/lang/Throwable` | ` 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. | | ` https://developer.android.com/reference/java/lang/Throwable` | ` https://developer.android.com/reference/java/lang/Throwable#initCause(java.lang.Throwable)(https://developer.android.com/reference/java/lang/Throwable cause) ` Initializes the *cause* of this throwable to the specified value. | | ` void` | ` https://developer.android.com/reference/java/lang/Throwable#printStackTrace()() ` Prints this throwable and its backtrace to the standard error stream. | | ` void` | ` https://developer.android.com/reference/java/lang/Throwable#printStackTrace(java.io.PrintWriter)(https://developer.android.com/reference/java/io/PrintWriter s) ` Prints this throwable and its backtrace to the specified print writer. | | ` void` | ` https://developer.android.com/reference/java/lang/Throwable#printStackTrace(java.io.PrintStream)(https://developer.android.com/reference/java/io/PrintStream s) ` Prints this throwable and its backtrace to the specified print stream. | | ` void` | ` https://developer.android.com/reference/java/lang/Throwable#setStackTrace(java.lang.StackTraceElement[])(https://developer.android.com/reference/java/lang/StackTraceElement stackTrace) ` Sets the stack trace elements that will be returned by `https://developer.android.com/reference/java/lang/Throwable#getStackTrace()` and printed by `https://developer.android.com/reference/java/lang/Throwable#printStackTrace()` and related methods. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Throwable#toString()() ` Returns a short description of this throwable. | ||
| From class ` https://developer.android.com/reference/java/lang/Object ` |---|---| | ` https://developer.android.com/reference/java/lang/Object` | ` https://developer.android.com/reference/java/lang/Object#clone()() ` Creates and returns a copy of this object. | | ` boolean` | ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` 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 https://developer.android.com/reference/java/lang/Class<?>` | ` https://developer.android.com/reference/java/lang/Object#getClass()() ` Returns the runtime class of this `Object`. | | ` int` | ` https://developer.android.com/reference/java/lang/Object#hashCode()() ` Returns a hash code value for the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notify()() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notifyAll()() ` Wakes up all threads that are waiting on this object's monitor. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Object#toString()() ` Returns a string representation of the object. | | ` final void` | ` 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` | ` 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` | ` 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

### AssertionFailedError

Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public AssertionFailedError ()
```

It is more typical to call `https://developer.android.com/reference/android/test/AssertionFailedError#AssertionFailedError(java.lang.String)`.

<br />

### AssertionFailedError

Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public AssertionFailedError (String errorMessage)
```

<br />

<br />

| Parameters ||
|---|---|
| `errorMessage` | `String` <br /> |