Java garbage collection Interview questions.

What are the garbage collectors in java?

As of java 11 we have 5 types of garbage collectors, they are as below.

Serial Garbage Collector

Parallel Garbage Collector

Concurrent Mark Sweep Garbage Collector(CMS)

G1 garbage Collector

Z Garbage Collector

To verify which GC is currently used ypu can use below command:
java -XX:+PrintCommandLineFlags -version

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