BenQ Mobile

java.lang.ref
Class Reference

java.lang.Object
  extended byjava.lang.ref.Reference
Direct Known Subclasses:
WeakReference

public abstract class Reference
extends Object

Abstract base class for reference objects. This class defines the operations common to all reference objects. Because reference objects are implemented in close cooperation with the garbage collector, this class may not be subclassed directly.

Since:
JDK1.2, CLDC 1.1
Version:
12/19/01 (CLDC 1.1)
Author:
Mark Reinhold

Method Summary
 void clear()
          Clears this reference object.
 Object get()
          Returns this reference object's referent.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

get

public Object get()
Returns this reference object's referent. If this reference object has been cleared, either by the program or by the garbage collector, then this method returns null.

Returns:
The object to which this reference refers, or null if this reference object has been cleared

clear

public void clear()
Clears this reference object.


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