What Does a Garbage Collector Do?

It is used to monitor the operation of the garbage collector. When the object is no longer used, the memory used by the object is automatically released. The Java garbage collector can run in the background in a separate thread and check each object in turn. By changing the object table Item, the garbage collector can mark objects, remove objects, move objects, or inspect objects. The garbage collector runs automatically, and in general, you do not need to explicitly request the garbage collector. When the program runs, the garbage collector will check the object from time to time Each reference is reclaimed, and the memory occupied by the unreferenced object is reclaimed. Calling the static get () method in the System class can run the garbage collector, but this does not guarantee that the specified object will be reclaimed immediately.