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).

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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