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When does garbage collection work in java?

I knew there were a lot of articles about java garbage collection, but after searching I don’t know exactly when the dose of garbage collection starts in a Java application (when the application restarts or while it is still running) . "

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Garbage Collector- the flow of the demon. Behind the application, the dameon thread runs. It is launched by the JVM. the thread stops when all non-dameon threads stop.

The JVM manages the garbage collector; he decides when to run the garbage collector. The JVM runs a garbage collector when it realizes that memory is running low. GC behavior can be customized by passing parameters to JVM.

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