public abstract class Reference

  1. Object
  2. Reference

Known subtypesSoftReference, WeakReference

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

Constructors

public Reference()

Methods

public void clear()Clears this reference object.
public Object get()Returns this reference object’s referent.

Inherited methods

From Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait, clone

Constructor details

Reference

public Reference()

Method details

clear

public void clear()
Clears this reference object.

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.