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Added in API level 1

AssertionError

public class AssertionError
extends Error

java.lang.Object
   ↳ java.lang.Throwable
     ↳ java.lang.Error
       ↳ java.lang.AssertionError
Known Direct Subclasses
Known Indirect Subclasses


Thrown to indicate that an assertion has failed.

The seven one-argument public constructors provided by this class ensure that the assertion error returned by the invocation:

     new AssertionError(expression)
 
has as its detail message the string conversion of expression (as defined in section 15.18.1.1 of The Java™ Language Specification), regardless of the type of expression.

Summary

Public constructors

AssertionError()

Constructs an AssertionError with no detail message.

AssertionError(Object detailMessage)

Constructs an AssertionError with its detail message derived from the specified object, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

AssertionError(boolean detailMessage)

Constructs an AssertionError with its detail message derived from the specified boolean, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

AssertionError(char detailMessage)

Constructs an AssertionError with its detail message derived from the specified char, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

AssertionError(int detailMessage)

Constructs an AssertionError with its detail message derived from the specified int, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

AssertionError(long detailMessage)

Constructs an AssertionError with its detail message derived from the specified long, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

AssertionError(float detailMessage)

Constructs an AssertionError with its detail message derived from the specified float, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

AssertionError(double detailMessage)

Constructs an AssertionError with its detail message derived from the specified double, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

AssertionError(String message, Throwable cause)

Constructs a new AssertionError with the specified detail message and cause.

Inherited methods

From class java.lang.Throwable
From class java.lang.Object

Public constructors

AssertionError

Added in API level 1
AssertionError ()

Constructs an AssertionError with no detail message.

AssertionError

Added in API level 1
AssertionError (Object detailMessage)

Constructs an AssertionError with its detail message derived from the specified object, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

If the specified object is an instance of Throwable, it becomes the cause of the newly constructed assertion error.

Parameters
detailMessage Object: value to be used in constructing detail message

See also:

AssertionError

Added in API level 1
AssertionError (boolean detailMessage)

Constructs an AssertionError with its detail message derived from the specified boolean, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Parameters
detailMessage boolean: value to be used in constructing detail message

AssertionError

Added in API level 1
AssertionError (char detailMessage)

Constructs an AssertionError with its detail message derived from the specified char, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Parameters
detailMessage char: value to be used in constructing detail message

AssertionError

Added in API level 1
AssertionError (int detailMessage)

Constructs an AssertionError with its detail message derived from the specified int, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Parameters
detailMessage int: value to be used in constructing detail message

AssertionError

Added in API level 1
AssertionError (long detailMessage)

Constructs an AssertionError with its detail message derived from the specified long, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Parameters
detailMessage long: value to be used in constructing detail message

AssertionError

Added in API level 1
AssertionError (float detailMessage)

Constructs an AssertionError with its detail message derived from the specified float, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Parameters
detailMessage float: value to be used in constructing detail message

AssertionError

Added in API level 1
AssertionError (double detailMessage)

Constructs an AssertionError with its detail message derived from the specified double, which is converted to a string as defined in section 15.18.1.1 of The Java™ Language Specification.

Parameters
detailMessage double: value to be used in constructing detail message

AssertionError

Added in API level 19
AssertionError (String message, 
                Throwable cause)

Constructs a new AssertionError with the specified detail message and cause.

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

Parameters
message String: the detail message, may be null
cause Throwable: the cause, may be null
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