HeadlessException (Java Platform SE 8 )

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.lang.RuntimeException
    - - java.lang.UnsupportedOperationException
      - java.awt.HeadlessException

All Implemented Interfaces:

Serializable
```
public class HeadlessException
extends UnsupportedOperationException
```
Thrown when code that is dependent on a keyboard, display, or mouse is called in an environment that does not support a keyboard, display, or mouse.

Since:

1.4

See Also:

Serialized Form

- Constructor Summary
  
  Constructors
  Constructor and Description
  
  HeadlessException()
  
  HeadlessException(String msg)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method and Description
  
  String getMessage()
  Returns the detail message string of this throwable.
  - Methods inherited from class java.lang.Throwable
    addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructors
Constructor and Description
`HeadlessException()`
`HeadlessException(String msg)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`getMessage()` Returns the detail message string of this throwable.

- Constructor Detail
  - HeadlessException
```
public HeadlessException()
```
  - HeadlessException
```
public HeadlessException(String msg)
```
- Method Detail
  - getMessage
```
public String getMessage()
```
    Description copied from class: Throwable
    
    Returns the detail message string of this throwable.
    
    Overrides:
    
    getMessage in class Throwable
    
    Returns:
    
    the detail message string of this Throwable instance (which may be null).

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2019, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

Class HeadlessException

Constructor Summary

Method Summary

Methods inherited from class java.lang.Throwable

Methods inherited from class java.lang.Object

Constructor Detail

HeadlessException

HeadlessException

Method Detail

getMessage