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## java.util
Class EventObject

    java.lang.Object
      java.util.EventObject

All Implemented Interfaces:
  Serializable

Direct Known Subclasses:
  AWTEvent, BeanContextEvent, CaretEvent, ChangeEvent, ConnectionEvent, DragGestureEvent, DragSourceEvent, DropTargetEvent, HandshakeCompletedEvent, HyperlinkEvent, LineEvent, ListDataEvent, ListSelectionEvent, MenuEvent, NamingEvent, NamingExceptionEvent, NodeChangeEvent, PopupMenuEvent, PreferenceChangeEvent, PrintEvent, PropertyChangeEvent, RowSetEvent, SSLSessionBindingEvent, 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:
  JDK1.1
See Also:
  Serialized Form

Field Summary
`protected Object` | `source` The object on which the Event initially occurred.

Constructor Summary
`EventObject(Object source)` Constructs a prototypical Event.

Method Summary
`Object` | `getSource()` The object on which the Event initially occurred.
`String` | `toString()` Returns a String representation of this EventObject.

Methods inherited from 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.

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 a String representation of this EventObject.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.