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[package java.util]
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java.lang.Object | +----java.util.EventObject
public class EventObject implements java.io.Serializable
The Event class is the abstract root class from which all event state objects shall be derived.
All Event's 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.
public EventObject(Object source);
source
protected transient Object source;
getSource
public Object getSource();
public String toString();
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[package java.util]
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