Skip to content

Most visited

Recently visited

navigation
Added in API level 1

Error

public class Error
extends Throwable

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


An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch. Most such errors are abnormal conditions. The ThreadDeath error, though a "normal" condition, is also a subclass of Error because most applications should not try to catch it.

A method is not required to declare in its throws clause any subclasses of Error that might be thrown during the execution of the method but not caught, since these errors are abnormal conditions that should never occur. That is, Error and its subclasses are regarded as unchecked exceptions for the purposes of compile-time checking of exceptions.

See also:

Summary

Public constructors

Error()

Constructs a new error with null as its detail message.

Error(String message)

Constructs a new error with the specified detail message.

Error(String message, Throwable cause)

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

Error(Throwable cause)

Constructs a new error with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause).

Protected constructors

Error(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)

Constructs a new error with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.

Inherited methods

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

Public constructors

Error

Added in API level 1
Error ()

Constructs a new error with null as its detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause(Throwable).

Error

Added in API level 1
Error (String message)

Constructs a new error with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause(Throwable).

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

Error

Added in API level 1
Error (String message, 
                Throwable cause)

Constructs a new error 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 (which is saved for later retrieval by the getMessage() method).
cause Throwable: the cause (which is saved for later retrieval by the getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

Error

Added in API level 1
Error (Throwable cause)

Constructs a new error 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 errors that are little more than wrappers for other throwables.

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

Protected constructors

Error

Added in API level 24
Error (String message, 
                Throwable cause, 
                boolean enableSuppression, 
                boolean writableStackTrace)

Constructs a new error with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.

Parameters
message String: the detail message.
cause Throwable: the cause. (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
enableSuppression boolean: whether or not suppression is enabled or disabled
writableStackTrace boolean: whether or not the stack trace should be writable
This site uses cookies to store your preferences for site-specific language and display options.

Hooray!

This class requires API level or higher

This doc is hidden because your selected API level for the documentation is . You can change the documentation API level with the selector above the left navigation.

For more information about specifying the API level your app requires, read Supporting Different Platform Versions.