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This article introduces how to judge whether the object is dead or not in java. The content is very detailed. Interested friends can use it for reference. I hope it will be helpful to you.

Citation counting method

Add a reference counter to the object, which is incremented by 1 whenever there is a reference; when the reference expires, the counter is subtracted by 1; an object with a counter of 0 can no longer be used.

Reachability analysis algorithm

The basic idea of this algorithm is to search down from these nodes through a series of objects called "GC Roots". The path taken by the node is called reference chain. When an object is not connected to GC Roots with any reference chain, it is proved that the object is unavailable.

On how to judge whether the object is dead in java is shared here, I hope the above content can be of some help to you, you can learn more knowledge. If you think the article is good, you can share it for more people to see.

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