EventObject (Java SE 12 & JDK 12 )

java.lang.Object
- java.util.EventObject

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AppEvent, AWTEvent, BeanContextEvent, CaretEvent, ChangeEvent, ConnectionEvent, DragGestureEvent, DragSourceEvent, DropTargetEvent, FlavorEvent, HandshakeCompletedEvent, HyperlinkEvent, LineEvent, ListDataEvent, ListSelectionEvent, MenuEvent, NamingEvent, NamingExceptionEvent, NodeChangeEvent, Notification, PopupMenuEvent, PreferenceChangeEvent, PrintEvent, PropertyChangeEvent, RowSetEvent, RowSorterEvent, SSLSessionBindingEvent, StatementEvent, TableColumnModelEvent, TableModelEvent, TreeExpansionEvent, TreeModelEvent, TreeSelectionEvent, UndoableEditEvent, UnsolicitedNotificationEvent
```
public class EventObject
extends Object
implements Serializable
```
The root class from which all event state objects shall be derived.
All Events are constructed with a reference to the object, the "source", that is logically deemed to be the object upon which the Event in question initially occurred upon.

Since:

1.1

See Also:

Serialized Form

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected Object source
  The object on which the Event initially occurred.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  EventObject(Object source)
  Constructs a prototypical Event.
- Method Summary
  
  Modifier and Type Method Description
  
  Object getSource()
  The object on which the Event initially occurred.
  
  String toString()
  Returns a String representation of this EventObject.
  - Methods declared in class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - source
```
protected transient Object source
```
    The object on which the Event initially occurred.
- Constructor Detail
  - EventObject
```
public EventObject(Object source)
```
    Constructs a prototypical Event.
    
    Parameters:
    
    source - the object on which the Event initially occurred
    
    Throws:
    
    IllegalArgumentException - if source is null
- Method Detail
  - getSource
```
public Object getSource()
```
    The object on which the Event initially occurred.
    
    Returns:
    
    the object on which the Event initially occurred
  - toString
```
public String toString()
```
    Returns a String representation of this EventObject.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a String representation of this EventObject