Phantom reference has nothing to do with the life cycle of an object.
虚引用和对象的生命周期无关。
Weak and soft references both extend the abstract reference class (as do phantom references, which will be discussed in a future article).
弱引用和软引用都扩展了抽象的reference类(虚引用(phantom references)也一样，这将在以后的文章中介绍)。
Phantomly reachable: an object that is not strongly, softly, or weakly reachable, has been finalized, and can be accessed through a phantom reference.
虚可及对象(phantomly reachable)：不是强可及对象、软可及对象，也不是弱可及对象，已经结束的，可以通过虚引用访问的对象。
Phantomly reachable: an object that is not strongly, softly, or weakly reachable, has been finalized, and can be accessed through a phantom reference.
虚可及对象(phantomly reachable)：不是强可及对象、软可及对象，也不是弱可及对象，已经结束的，可以通过虚引用访问的对象。
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